diff --git a/packages/docs/v4/basics/act.mdx b/packages/docs/v4/basics/act.mdx
index d5cc1cd515..b6d40ad0b8 100644
--- a/packages/docs/v4/basics/act.mdx
+++ b/packages/docs/v4/basics/act.mdx
@@ -287,7 +287,7 @@ You can pass additional options to configure the model, timeout, variables, targ
 // Custom model configuration
 await stagehand.act("choose 'Peach' from the favorite color dropdown", {
   model: {
-    modelName: "google/gemini-2.5-flash",
+    modelName: "google/gemini-3.8-flash",
     apiKey: process.env.GOOGLE_API_KEY,
   },
   timeout: 10000,
@@ -307,7 +307,7 @@ from stagehand import ModelConfig
 await stagehand.act(
     "choose 'Peach' from the favorite color dropdown",
     model=ModelConfig(
-        model_name="google/gemini-2.5-flash",
+        model_name="google/gemini-3.8-flash",
         api_key=os.environ["GOOGLE_API_KEY"],
     ),
     timeout=10000,
@@ -322,7 +322,7 @@ await stagehand.act(
 // Custom model configuration
 modelAPIKey := os.Getenv("GOOGLE_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "google/gemini-2.5-flash",
+	ModelName: "google/gemini-3.8-flash",
 	APIKey:    &modelAPIKey,
 }
 timeout := 10000.0
diff --git a/packages/docs/v4/basics/extract.mdx b/packages/docs/v4/basics/extract.mdx
index 0386d0d881..cdaa4b3acd 100644
--- a/packages/docs/v4/basics/extract.mdx
+++ b/packages/docs/v4/basics/extract.mdx
@@ -380,7 +380,7 @@ const result = await stagehand.extract(
   z.object({ name: z.string() }),
   {
     model: {
-      modelName: "anthropic/claude-sonnet-4-6",
+      modelName: "anthropic/claude-sonnet-5",
       apiKey: process.env.ANTHROPIC_API_KEY,
     },
     timeout: 30000,
@@ -402,7 +402,7 @@ result = await stagehand.extract(
     "extract the repository name",
     Repository,
     model=ModelConfig(
-        model_name="anthropic/claude-sonnet-4-6",
+        model_name="anthropic/claude-sonnet-5",
         api_key=os.environ["ANTHROPIC_API_KEY"],
     ),
     timeout=30000,
@@ -416,7 +416,7 @@ result = await stagehand.extract(
 
 modelAPIKey := os.Getenv("ANTHROPIC_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "anthropic/claude-sonnet-4-6",
+	ModelName: "anthropic/claude-sonnet-5",
 	APIKey:    &modelAPIKey,
 }
 timeout := 30000.0
diff --git a/packages/docs/v4/basics/observe.mdx b/packages/docs/v4/basics/observe.mdx
index 9fa820b12e..5e24606fcd 100644
--- a/packages/docs/v4/basics/observe.mdx
+++ b/packages/docs/v4/basics/observe.mdx
@@ -264,7 +264,7 @@ const page = await stagehand.browser.context.activePage();
 // Custom model configuration
 const { data: actions } = await stagehand.observe("find navigation links", {
   model: {
-    modelName: "openai/gpt-5.4-mini",
+    modelName: "openai/gpt-5.6-luna",
     apiKey: process.env.OPENAI_API_KEY,
   },
   timeout: 30000,
@@ -285,7 +285,7 @@ page = await stagehand.browser.context.active_page()
 result = await stagehand.observe(
     "find navigation links",
     model=ModelConfig(
-        model_name="openai/gpt-5.4-mini",
+        model_name="openai/gpt-5.6-luna",
         api_key=os.environ["OPENAI_API_KEY"],
     ),
     timeout=30000,
@@ -299,7 +299,7 @@ result = await stagehand.observe(
 // Custom model configuration
 modelAPIKey := os.Getenv("OPENAI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "openai/gpt-5.4-mini",
+	ModelName: "openai/gpt-5.6-luna",
 	APIKey:    &modelAPIKey,
 }
 timeout := 30000.0
diff --git a/packages/docs/v4/best-practices/caching.mdx b/packages/docs/v4/best-practices/caching.mdx
index dc6a985cfc..459e64bf6b 100644
--- a/packages/docs/v4/best-practices/caching.mdx
+++ b/packages/docs/v4/best-practices/caching.mdx
@@ -599,8 +599,8 @@ const browser = await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_K
 
 const stagehand = await Stagehand.create({
   browser,
-  model: { modelName: "openai/gpt-5" }, // Routed through Model Gateway
-  cache: true,                          // Served by Browserbase Cache
+  model: { modelName: "openai/gpt-5.6-sol" }, // Routed through Model Gateway
+  cache: true,                                // Served by Browserbase Cache
 });
 ```
 </Tab>
@@ -611,8 +611,8 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="openai/gpt-5",  # Routed through Model Gateway
-    cache=True,            # Served by Browserbase Cache
+    model="openai/gpt-5.6-sol",  # Routed through Model Gateway
+    cache=True,                  # Served by Browserbase Cache
 )
 ```
 </Tab>
@@ -621,7 +621,7 @@ stagehand = await Stagehand.create(
 ```go
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 // Routed through Model Gateway: no model API key
-model := stagehand.ModelConfig{ModelName: "openai/gpt-5"}
+model := stagehand.ModelConfig{ModelName: "openai/gpt-5.6-sol"}
 cache := stagehand.CacheEnabled(true) // Served by Browserbase Cache
 
 browser, err := stagehand.LaunchBrowserbase(ctx, stagehand.BrowserbaseLaunchOptions{
diff --git a/packages/docs/v4/best-practices/cost-optimization.mdx b/packages/docs/v4/best-practices/cost-optimization.mdx
index 7ded4c4530..66c37674ab 100644
--- a/packages/docs/v4/best-practices/cost-optimization.mdx
+++ b/packages/docs/v4/best-practices/cost-optimization.mdx
@@ -22,7 +22,7 @@ Reach for a stronger model only on the calls that need it, with a per-call model
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "google/gemini-2.5-flash",
+    modelName: "google/gemini-3.8-flash",
   },
 });
 
@@ -31,7 +31,7 @@ const termsSchema = z.object({ summary: z.string() });
 // One hard extraction gets the expensive model, everything else stays cheap
 await stagehand.extract("summarize the contract terms", termsSchema, {
   model: {
-    modelName: "anthropic/claude-sonnet-4-6",
+    modelName: "anthropic/claude-sonnet-5",
     apiKey: process.env.ANTHROPIC_API_KEY,
   },
 });
@@ -48,7 +48,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="google/gemini-2.5-flash",
+    model="google/gemini-3.8-flash",
     model_api_key=os.environ["GOOGLE_GENERATIVE_AI_API_KEY"],
 )
 
@@ -60,7 +60,7 @@ await stagehand.extract(
     instruction="summarize the contract terms",
     schema=Terms,
     model=ModelConfig(
-        model_name="anthropic/claude-sonnet-4-6",
+        model_name="anthropic/claude-sonnet-5",
         api_key=os.environ["ANTHROPIC_API_KEY"],
     ),
 )
@@ -76,7 +76,7 @@ type terms struct {
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 googleKey := os.Getenv("GOOGLE_GENERATIVE_AI_API_KEY")
 cheapModel := stagehand.ModelConfig{
-	ModelName: "google/gemini-2.5-flash",
+	ModelName: "google/gemini-3.8-flash",
 	APIKey:    &googleKey,
 }
 
@@ -98,7 +98,7 @@ if err != nil {
 // One hard extraction gets the expensive model, everything else stays cheap
 anthropicKey := os.Getenv("ANTHROPIC_API_KEY")
 strongModel := stagehand.ModelConfig{
-	ModelName: "anthropic/claude-sonnet-4-6",
+	ModelName: "anthropic/claude-sonnet-5",
 	APIKey:    &anthropicKey,
 }
 
@@ -270,7 +270,7 @@ Automatically fall back to cheaper models for simple tasks. Escalate on `observe
 // See stagehand.dev/evals for performance comparisons
 async function smartAct(stagehand: Stagehand, prompt: string) {
   const models = [
-    { modelName: "google/gemini-2.5-flash", apiKey: process.env.GOOGLE_GENERATIVE_AI_API_KEY },
+    { modelName: "google/gemini-3.8-flash", apiKey: process.env.GOOGLE_GENERATIVE_AI_API_KEY },
     { modelName: "openai/gpt-5.4", apiKey: process.env.OPENAI_API_KEY },
   ] as const;
 
@@ -299,7 +299,7 @@ async function smartAct(stagehand: Stagehand, prompt: string) {
 async def smart_act(stagehand: Stagehand, prompt: str):
     models = [
         {
-            "model_name": "google/gemini-2.5-flash",
+            "model_name": "google/gemini-3.8-flash",
             "api_key": os.environ["GOOGLE_GENERATIVE_AI_API_KEY"],
         },
         {"model_name": "openai/gpt-5.4", "api_key": os.environ["OPENAI_API_KEY"]},
@@ -334,7 +334,7 @@ func smartAct(ctx context.Context, client *stagehand.Stagehand, prompt string) (
 
 	models := []stagehand.ModelConfig{
 		stagehand.ModelConfig{
-			ModelName: "google/gemini-2.5-flash",
+			ModelName: "google/gemini-3.8-flash",
 			APIKey:    &googleKey,
 		},
 		stagehand.ModelConfig{
diff --git a/packages/docs/v4/best-practices/deployments.mdx b/packages/docs/v4/best-practices/deployments.mdx
index 19b82ef8f9..af96581a7b 100644
--- a/packages/docs/v4/best-practices/deployments.mdx
+++ b/packages/docs/v4/best-practices/deployments.mdx
@@ -115,7 +115,7 @@ async function run(): Promise<string> {
   const stagehand = await Stagehand.create({
     browser,
     model: {
-      modelName: "google/gemini-2.5-flash",
+      modelName: "google/gemini-3.8-flash",
     },
     logging: { level: "warn", format: "json" },
   });
@@ -175,7 +175,7 @@ async def run() -> str:
 
     stagehand = await Stagehand.create(
         browser=browser,
-        model="google/gemini-2.5-flash",
+        model="google/gemini-3.8-flash",
         model_api_key=os.environ["GOOGLE_API_KEY"],
         logging=StagehandClientLoggingConfig(level="warn", format="json"),
     )
@@ -271,7 +271,7 @@ func run(ctx context.Context) (result string, err error) {
 	blockAds := true
 
 	model := stagehand.ModelConfig{
-		ModelName: "google/gemini-2.5-flash",
+		ModelName: "google/gemini-3.8-flash",
 		APIKey:    &modelAPIKey,
 	}
 
diff --git a/packages/docs/v4/configuration/models.mdx b/packages/docs/v4/configuration/models.mdx
index 4a6cb4bb82..6d875666c7 100644
--- a/packages/docs/v4/configuration/models.mdx
+++ b/packages/docs/v4/configuration/models.mdx
@@ -95,7 +95,7 @@ With Model Gateway, switching between providers is a config change: no new accou
 ```typescript
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
-  model: { modelName: "openai/gpt-5" },
+  model: { modelName: "openai/gpt-5.6-sol" },
 });
 ```
 </Tab>
@@ -106,7 +106,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="openai/gpt-5",
+    model="openai/gpt-5.6-sol",
 )
 ```
 </Tab>
@@ -115,7 +115,7 @@ stagehand = await Stagehand.create(
 ```go
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 // No model API key: requests route through Model Gateway
-model := stagehand.ModelConfig{ModelName: "openai/gpt-5"}
+model := stagehand.ModelConfig{ModelName: "openai/gpt-5.6-sol"}
 
 browser, err := stagehand.LaunchBrowserbase(ctx, stagehand.BrowserbaseLaunchOptions{
 	APIKey: apiKey,
@@ -144,7 +144,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 ```typescript
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
-  model: { modelName: "anthropic/claude-sonnet-4-6" },
+  model: { modelName: "anthropic/claude-sonnet-5" },
 });
 ```
 </Tab>
@@ -155,7 +155,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="anthropic/claude-sonnet-4-6",
+    model="anthropic/claude-sonnet-5",
 )
 ```
 </Tab>
@@ -164,7 +164,7 @@ stagehand = await Stagehand.create(
 ```go
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 // No model API key: requests route through Model Gateway
-model := stagehand.ModelConfig{ModelName: "anthropic/claude-sonnet-4-6"}
+model := stagehand.ModelConfig{ModelName: "anthropic/claude-sonnet-5"}
 
 browser, err := stagehand.LaunchBrowserbase(ctx, stagehand.BrowserbaseLaunchOptions{
 	APIKey: apiKey,
@@ -193,7 +193,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 ```typescript
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
-  model: { modelName: "google/gemini-3-flash-preview" },
+  model: { modelName: "google/gemini-3.8-flash" },
 });
 ```
 </Tab>
@@ -204,7 +204,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="google/gemini-3-flash-preview",
+    model="google/gemini-3.8-flash",
 )
 ```
 </Tab>
@@ -213,7 +213,7 @@ stagehand = await Stagehand.create(
 ```go
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 // No model API key: requests route through Model Gateway
-model := stagehand.ModelConfig{ModelName: "google/gemini-3-flash-preview"}
+model := stagehand.ModelConfig{ModelName: "google/gemini-3.8-flash"}
 
 browser, err := stagehand.LaunchBrowserbase(ctx, stagehand.BrowserbaseLaunchOptions{
 	APIKey: apiKey,
@@ -249,9 +249,9 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 
 | Provider   | Example Model                  |
 | ---------- | ------------------------------ |
-| OpenAI     | `openai/gpt-5`                |
-| Anthropic  | `anthropic/claude-sonnet-4-6` |
-| Google     | `google/gemini-2.5-flash`     |
+| OpenAI     | `openai/gpt-5.6-sol`                |
+| Anthropic  | `anthropic/claude-sonnet-5` |
+| Google     | `google/gemini-3.8-flash`     |
 
 <Tip>
   Need a provider that isn't listed? [Reach out](https://www.browserbase.com/contact): Browserbase is happy to work with teams on additional model support.
@@ -267,7 +267,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
   Read your provider key from the environment and pass it on the model configuration. Stagehand does not read environment variables for you.
 </Tip>
 
-Get started with Google Gemini (recommended for speed and cost):
+Get started with Google Gemini:
 
 <Tabs>
 <Tab title="TypeScript">
@@ -277,7 +277,7 @@ import { browserbase, Stagehand } from "@browserbasehq/stagehand";
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "google/gemini-2.5-flash",
+    modelName: "google/gemini-3.8-flash",
   },
 });
 ```
@@ -293,7 +293,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="google/gemini-2.5-flash",
+    model="google/gemini-3.8-flash",
     model_api_key=os.environ["GOOGLE_GENERATIVE_AI_API_KEY"],
 )
 ```
@@ -304,7 +304,7 @@ stagehand = await Stagehand.create(
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 modelAPIKey := os.Getenv("GOOGLE_GENERATIVE_AI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "google/gemini-2.5-flash",
+	ModelName: "google/gemini-3.8-flash",
 	APIKey:    &modelAPIKey,
 }
 
@@ -349,7 +349,7 @@ import { browserbase, Stagehand } from "@browserbasehq/stagehand";
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "google/gemini-2.5-flash",
+    modelName: "google/gemini-3.8-flash",
   },
 });
 ```
@@ -365,7 +365,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="google/gemini-2.5-flash",
+    model="google/gemini-3.8-flash",
     model_api_key=os.environ["GOOGLE_GENERATIVE_AI_API_KEY"],
 )
 ```
@@ -376,7 +376,7 @@ stagehand = await Stagehand.create(
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 modelAPIKey := os.Getenv("GOOGLE_GENERATIVE_AI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "google/gemini-2.5-flash",
+	ModelName: "google/gemini-3.8-flash",
 	APIKey:    &modelAPIKey,
 }
 
@@ -399,7 +399,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 </Tab>
 </Tabs>
 
-Commonly used: `google/gemini-3.1-pro-preview`, `google/gemini-3-flash-preview`, `google/gemini-3.5-flash`, `google/gemini-2.5-flash`, `google/gemini-flash-latest`.
+Commonly used: `google/gemini-3.8-flash`, `google/gemini-3.7-flash`, `google/gemini-3.6-flash`, `google/gemini-3.5-flash`, `google/gemini-3.1-pro-preview`.
 
 [View all supported Google models →](https://ai.google.dev/gemini-api/docs/models)
 </Tab>
@@ -414,7 +414,7 @@ import { browserbase, Stagehand } from "@browserbasehq/stagehand";
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "anthropic/claude-haiku-4-5",
+    modelName: "anthropic/claude-sonnet-5",
   },
 });
 ```
@@ -430,7 +430,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="anthropic/claude-haiku-4-5",
+    model="anthropic/claude-sonnet-5",
     model_api_key=os.environ["ANTHROPIC_API_KEY"],
 )
 ```
@@ -441,7 +441,7 @@ stagehand = await Stagehand.create(
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 modelAPIKey := os.Getenv("ANTHROPIC_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "anthropic/claude-haiku-4-5",
+	ModelName: "anthropic/claude-sonnet-5",
 	APIKey:    &modelAPIKey,
 }
 
@@ -464,7 +464,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 </Tab>
 </Tabs>
 
-Commonly used: `anthropic/claude-sonnet-5`, `anthropic/claude-fable-5`, `anthropic/claude-opus-4-8`, `anthropic/claude-sonnet-4-6`, `anthropic/claude-haiku-4-5`.
+Commonly used: `anthropic/claude-fable-5-1`, `anthropic/claude-opus-5`, `anthropic/claude-sonnet-5`, `anthropic/claude-haiku-4-5`, `anthropic/claude-sonnet-4-6`.
 
 [View all supported Anthropic models →](https://docs.anthropic.com/en/docs/models-overview)
 </Tab>
@@ -479,7 +479,7 @@ import { browserbase, Stagehand } from "@browserbasehq/stagehand";
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "openai/gpt-5",
+    modelName: "openai/gpt-5.6-sol",
   },
 });
 ```
@@ -495,7 +495,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="openai/gpt-5",
+    model="openai/gpt-5.6-sol",
     model_api_key=os.environ["OPENAI_API_KEY"],
 )
 ```
@@ -506,7 +506,7 @@ stagehand = await Stagehand.create(
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 modelAPIKey := os.Getenv("OPENAI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "openai/gpt-5",
+	ModelName: "openai/gpt-5.6-sol",
 	APIKey:    &modelAPIKey,
 }
 
@@ -529,7 +529,7 @@ defer func() { err = errors.Join(err, client.Close(ctx)) }()
 </Tab>
 </Tabs>
 
-Commonly used: `openai/gpt-5.6`, `openai/gpt-5.5`, `openai/gpt-5.4`, `openai/gpt-5.4-mini`, `openai/gpt-5.4-nano`, `openai/o4-mini`.
+Commonly used: `openai/gpt-6-astra`, `openai/gpt-5.6-sol`, `openai/gpt-5.6-terra`, `openai/gpt-5.6-luna`, `openai/gpt-5.5`, `openai/gpt-5.4`.
 
 <Note>
 OpenAI models are called through the Responses API.
@@ -1025,7 +1025,7 @@ async function generateWithOpenAI(params: LLMGenerateParams) {
   }
 
   const response = await openai.responses.create({
-    model: "gpt-5.4-mini",
+    model: "gpt-5.6-sol",
     instructions: params.systemPrompt,
     input: params.messages.map((message) => ({
       role: message.role,
@@ -1084,7 +1084,7 @@ def message_content(message):
 async def generate_with_openai(params):
     response_format = params.response_format
     response = await openai.responses.create(
-        model="gpt-5.4-mini",
+        model="gpt-5.6-sol",
         instructions=params.system_prompt,
         input=[
             {"role": message.role.value, "content": message_content(message)}
@@ -1122,7 +1122,7 @@ func generateWithOpenAI(
 	}
 
 	text, err := callOpenAI(ctx, callOpenAIInput{
-		Model:          "gpt-5.4-mini",
+		Model:          "gpt-5.6-luna",
 		Instructions:   request.SystemPrompt,
 		Messages:       request.Messages,
 		Temperature:    request.Temperature,
@@ -1353,21 +1353,21 @@ The result is validated against the response format Stagehand asked for. If you
 
 ## Choose a model
 
-Different models excel at different tasks. Consider speed, accuracy, and cost for your use case.
+Different models excel at different tasks. The picks below follow [Browserbase Benchmark v2](https://www.stagehand.dev/evals).
 
-<Card title="Model selection guide" href="https://www.stagehand.dev/evals" icon="scale-balanced">
-  Find detailed model comparisons and recommendations on the Stagehand model evaluation page.
+<Card title="Browser Agent Evals" href="https://www.stagehand.dev/evals" icon="scale-balanced">
+  Live accuracy, cost, and speed comparisons across models and harnesses.
 </Card>
 
 **Quick recommendations**
 
-| Use Case                  | Recommended Model                    | Why                            |
-| ------------------------- | ------------------------------------ | ------------------------------ |
-| **Production** | `google/gemini-2.5-flash`            | Fast, accurate, cost-effective |
-| **Intelligence**     | `google/gemini-3.1-pro-preview` | Best accuracy on hard tasks    |
-| **Speed**        | `google/gemini-2.5-flash`                 | Fastest response times         |
-| **Cost**     | `google/gemini-2.5-flash`            | Best value per token           |
-| **Local/offline**         | Bring your own LLM callback                    | No API costs, full control     |
+| Use Case          | Recommended Model           | Why                                  |
+| ----------------- | --------------------------- | ------------------------------------ |
+| **Production**    | `openai/gpt-5.6-sol`        | Strong accuracy without a high bill  |
+| **Intelligence**  | `openai/gpt-6-astra`        | Best accuracy on hard tasks          |
+| **Speed**         | `openai/gpt-5.6-luna`       | Fastest response times               |
+| **Cost**          | `openai/gpt-5.6-luna`       | Lowest cost per task                 |
+| **Local/offline** | Bring your own LLM callback | No API costs, full control           |
 
 
 ---
@@ -1386,7 +1386,7 @@ const PricingSchema = z.object({ summary: z.string() });
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "google/gemini-2.5-flash",
+    modelName: "google/gemini-3.8-flash",
   },
 });
 
@@ -1396,7 +1396,7 @@ await stagehand.act("click the login button");
 // Uses a stronger model for one hard extraction
 const { data } = await stagehand.extract("summarize the pricing table", PricingSchema, {
   model: {
-    modelName: "anthropic/claude-sonnet-4-6",
+    modelName: "anthropic/claude-sonnet-5",
     apiKey: process.env.ANTHROPIC_API_KEY,
   },
 });
@@ -1420,7 +1420,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="google/gemini-2.5-flash",
+    model="google/gemini-3.8-flash",
     model_api_key=os.environ["GOOGLE_GENERATIVE_AI_API_KEY"],
 )
 
@@ -1432,7 +1432,7 @@ data = (await stagehand.extract(
     "summarize the pricing table",
     Pricing,
     model=ModelConfig(
-        model_name="anthropic/claude-sonnet-4-6",
+        model_name="anthropic/claude-sonnet-5",
         api_key=os.environ["ANTHROPIC_API_KEY"],
     ),
 )).data
@@ -1451,7 +1451,7 @@ type pricing struct {
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 googleKey := os.Getenv("GOOGLE_GENERATIVE_AI_API_KEY")
 instanceModel := stagehand.ModelConfig{
-	ModelName: "google/gemini-2.5-flash",
+	ModelName: "google/gemini-3.8-flash",
 	APIKey:    &googleKey,
 }
 
@@ -1478,7 +1478,7 @@ if _, err := client.Act(ctx, stagehand.ActInstruction("click the login button"),
 // Uses a stronger model for one hard extraction
 anthropicKey := os.Getenv("ANTHROPIC_API_KEY")
 strongModel := stagehand.ModelConfig{
-	ModelName: "anthropic/claude-sonnet-4-6",
+	ModelName: "anthropic/claude-sonnet-5",
 	APIKey:    &anthropicKey,
 }
 
@@ -1515,7 +1515,7 @@ Some enterprise gateways require extra headers on every model request. Attach th
 const stagehand = await Stagehand.create({
   browser: await browserbase.launch({ apiKey: process.env.BROWSERBASE_API_KEY }),
   model: {
-    modelName: "openai/gpt-5",
+    modelName: "openai/gpt-5.6-sol",
     headers: { "x-tenant-id": "acme" },
   },
 });
@@ -1532,7 +1532,7 @@ browser = await browserbase.launch(api_key=os.environ["BROWSERBASE_API_KEY"])
 
 stagehand = await Stagehand.create(
     browser=browser,
-    model="openai/gpt-5",
+    model="openai/gpt-5.6-sol",
     model_api_key=os.environ["OPENAI_API_KEY"],
     model_headers={"x-tenant-id": "acme"},
 )
@@ -1544,7 +1544,7 @@ stagehand = await Stagehand.create(
 apiKey := os.Getenv("BROWSERBASE_API_KEY")
 modelAPIKey := os.Getenv("OPENAI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "openai/gpt-5",
+	ModelName: "openai/gpt-5.6-sol",
 	APIKey:    &modelAPIKey,
 	Headers:   stagehand.ModelConfigHeaders{"x-tenant-id": "acme"},
 }
@@ -1755,7 +1755,7 @@ You pinned a `model` but gave it no `apiKey`, and the browser is not a Browserba
 
 **Solutions:**
 
-- Use the `provider/model` format: `openai/gpt-5`. The prefix is required; bare model names are rejected
+- Use the `provider/model` format: `openai/gpt-5.6-sol`. The prefix is required; bare model names are rejected
 - Use one of the five supported providers: `openai`, `anthropic`, `google`, `groq`, `cerebras`
 - Check the model ID against the lists on this page. Stagehand validates the whole name, so a typo fails at `Stagehand.create()` rather than on the first inference
 - Upgrade the SDK if the model shipped after your installed version
diff --git a/packages/docs/v4/first-steps/ai-rules.mdx b/packages/docs/v4/first-steps/ai-rules.mdx
index c250819318..01ccd67e9e 100644
--- a/packages/docs/v4/first-steps/ai-rules.mdx
+++ b/packages/docs/v4/first-steps/ai-rules.mdx
@@ -113,7 +113,7 @@ const browser = await localBrowser.launch({ headless: true });
 const stagehand = await Stagehand.create({
   browser,
   model: {
-    modelName: "openai/gpt-5.4-mini",
+    modelName: "openai/gpt-5.6-luna",
     apiKey: process.env.OPENAI_API_KEY,
   },
   logging: { level: "info", format: "pretty" },
@@ -135,7 +135,7 @@ const browser = await browserbase.launch({
 });
 const stagehand = await Stagehand.create({
   browser,
-  model: { modelName: "openai/gpt-5.4-mini", apiKey: process.env.OPENAI_API_KEY },
+  model: { modelName: "openai/gpt-5.6-luna", apiKey: process.env.OPENAI_API_KEY },
 });
 ```
 
@@ -417,7 +417,7 @@ from stagehand import Stagehand, browserbase, local_browser
 browser = await local_browser.launch(headless=True)
 stagehand = await Stagehand.create(
     browser=browser,
-    model="openai/gpt-5.4-mini",
+    model="openai/gpt-5.6-luna",
     model_api_key=os.environ["OPENAI_API_KEY"],
     logging={"level": "info", "format": "pretty"},
 )
@@ -722,7 +722,7 @@ Every method takes a `context.Context` as its first argument and returns an `err
 ```go
 apiKey := os.Getenv("OPENAI_API_KEY")
 model := stagehand.ModelConfig{
-	ModelName: "openai/gpt-5.4-mini",
+	ModelName: "openai/gpt-5.6-sol",
 	APIKey:    &apiKey,
 }
 
diff --git a/packages/extension/tests/ai-sdk-client.test.ts b/packages/extension/tests/ai-sdk-client.test.ts
index b5590d80a4..7443edba65 100644
--- a/packages/extension/tests/ai-sdk-client.test.ts
+++ b/packages/extension/tests/ai-sdk-client.test.ts
@@ -19,20 +19,20 @@ describe("AI SDK language models", () => {
   it.each([
     {
       name: "OpenAI",
-      modelName: "openai/gpt-5.4-mini" as const,
-      modelId: "gpt-5.4-mini",
+      modelName: "openai/gpt-5.6-luna" as const,
+      modelId: "gpt-5.6-luna",
       provider: "openai.responses",
     },
     {
       name: "Anthropic",
-      modelName: "anthropic/claude-sonnet-4-6" as const,
-      modelId: "claude-sonnet-4-6",
+      modelName: "anthropic/claude-sonnet-5" as const,
+      modelId: "claude-sonnet-5",
       provider: "anthropic.messages",
     },
     {
       name: "Google",
-      modelName: "google/gemini-3-flash-preview" as const,
-      modelId: "gemini-3-flash-preview",
+      modelName: "google/gemini-3.8-flash" as const,
+      modelId: "gemini-3.8-flash",
       provider: "google.generative-ai",
     },
     {
diff --git a/packages/extension/tests/gateway-client.test.ts b/packages/extension/tests/gateway-client.test.ts
index 76aa1d1288..fca39e0fe5 100644
--- a/packages/extension/tests/gateway-client.test.ts
+++ b/packages/extension/tests/gateway-client.test.ts
@@ -25,7 +25,7 @@ afterEach(() => {
 });
 
 const initParams = {
-  model: { modelName: "openai/gpt-5" },
+  model: { modelName: "openai/gpt-5.6-luna" },
   apiKey: "bb-api-key",
   browser: { sessionId: "session-123", region: "eu-central-1" },
 } as StagehandInitParams;
@@ -61,7 +61,7 @@ describe("buildGatewayContext", () => {
 describe("createGatewayLanguageModel", () => {
   it("creates a Responses API model against the gateway endpoint with the full model slug", () => {
     const model = createGatewayLanguageModel(
-      { modelName: "openai/gpt-5" },
+      { modelName: "openai/gpt-5.6-luna" },
       {
         apiUrl: "https://api.stagehand.browserbase.com/v1",
         apiKey: "bb-api-key",
@@ -71,7 +71,7 @@ describe("createGatewayLanguageModel", () => {
 
     expect(model).toMatchObject({
       provider: "openai.responses",
-      modelId: "openai/gpt-5",
+      modelId: "openai/gpt-5.6-luna",
     });
   });
 
@@ -115,7 +115,7 @@ describe("llmService.generate gateway routing", () => {
       usage: { inputTokens: 1, outputTokens: 1, totalTokens: 2 },
     } as never);
 
-    await llmService.generate({ modelName: "openai/gpt-5" }, input, vi.fn(), {
+    await llmService.generate({ modelName: "openai/gpt-5.6-sol" }, input, vi.fn(), {
       apiUrl: "https://api.stagehand.browserbase.com/v1",
       apiKey: "bb-api-key",
       sessionId: "session-123",
@@ -125,7 +125,7 @@ describe("llmService.generate gateway routing", () => {
       expect.objectContaining({
         model: expect.objectContaining({
           provider: "openai.responses",
-          modelId: "openai/gpt-5",
+          modelId: "openai/gpt-5.6-sol",
         }),
       }),
     );
@@ -157,7 +157,7 @@ describe("llmService.generate gateway routing", () => {
 
   it("rejects key-less model configurations when no gateway context is available", async () => {
     await expect(
-      llmService.generate({ modelName: "openai/gpt-5" }, input, vi.fn()),
+      llmService.generate({ modelName: "openai/gpt-5.6-sol" }, input, vi.fn()),
     ).rejects.toThrow(/requires a provider API key or a Browserbase session/);
     expect(generateText).not.toHaveBeenCalled();
   });
@@ -172,7 +172,7 @@ describe("llmService.generate gateway routing", () => {
   it("rejects stop sequences instead of silently ignoring them", async () => {
     await expect(
       llmService.generate(
-        { modelName: "openai/gpt-5" },
+        { modelName: "openai/gpt-5.6-sol" },
         { ...input, stopSequences: ["STOP"] },
         vi.fn(),
         {
diff --git a/packages/extension/tests/gateway-e2e.test.ts b/packages/extension/tests/gateway-e2e.test.ts
index 057e857bae..49ac9f40ad 100644
--- a/packages/extension/tests/gateway-e2e.test.ts
+++ b/packages/extension/tests/gateway-e2e.test.ts
@@ -28,7 +28,7 @@ const completion = (content: string) => ({
   id: "resp_e2e",
   object: "response",
   created_at: 1700000000,
-  model: "openai/gpt-5",
+  model: "openai/gpt-5.6-luna",
   status: "completed",
   output: [
     {
@@ -97,7 +97,7 @@ describe("gateway inference end to end", () => {
   it("sends an OpenAI-format request to the gateway endpoint and maps the response back", async () => {
     const result = await llmService.generate(
       {
-        modelName: "openai/gpt-5",
+        modelName: "openai/gpt-5.6-luna",
         headers: {
           "x-custom-header": "custom-value",
           "x-bb-api-key": "must-not-override-auth",
@@ -118,7 +118,7 @@ describe("gateway inference end to end", () => {
     expect(request.headers["x-bb-api-key"]).toBe("bb-api-key");
     expect(request.headers["x-bb-session-id"]).toBe("session-123");
     expect(request.headers["x-custom-header"]).toBe("custom-value");
-    expect(request.body.model).toBe("openai/gpt-5");
+    expect(request.body.model).toBe("openai/gpt-5.6-luna");
     expect(request.body.input).toEqual([
       { role: "system", content: "Answer concisely." },
       {
@@ -140,7 +140,7 @@ describe("gateway inference end to end", () => {
     respondWith = () => completion(JSON.stringify({ greeting: "hi" }));
 
     const result = await llmService.generate(
-      { modelName: "openai/gpt-5" },
+      { modelName: "openai/gpt-5.6-luna" },
       {
         messages: [{ role: "user", content: { type: "text", text: "Greet me" } }],
         responseFormat: {
@@ -170,7 +170,7 @@ describe("gateway inference end to end", () => {
 
   it("forwards tools and tool choice in Responses format", async () => {
     await llmService.generate(
-      { modelName: "openai/gpt-5" },
+      { modelName: "openai/gpt-5.6-luna" },
       {
         messages: [{ role: "user", content: { type: "text", text: "Check the weather" } }],
         tools: [
diff --git a/packages/extension/tests/runtime-state.test.ts b/packages/extension/tests/runtime-state.test.ts
index 72bd2d8ee8..0addb4feaf 100644
--- a/packages/extension/tests/runtime-state.test.ts
+++ b/packages/extension/tests/runtime-state.test.ts
@@ -105,7 +105,7 @@ describe("Stagehand runtime state", () => {
     });
     await runtime.initialize({
       ...runtimeIdentity,
-      model: { modelName: "openai/gpt-5" },
+      model: { modelName: "openai/gpt-5.6-luna" },
       telemetry: {
         traces: {
           endpoint: "https://collector.example.com/v1/traces",
@@ -119,7 +119,7 @@ describe("Stagehand runtime state", () => {
       status: "initialized",
       initParams: {
         ...runtimeIdentity,
-        model: { modelName: "openai/gpt-5" },
+        model: { modelName: "openai/gpt-5.6-luna" },
         telemetry: {
           traces: {
             endpoint: "https://collector.example.com/v1/traces",
@@ -143,7 +143,7 @@ describe("Stagehand runtime state", () => {
     });
     await runtime.initialize({
       ...runtimeIdentity,
-      model: { modelName: "openai/gpt-5" },
+      model: { modelName: "openai/gpt-5.6-luna" },
       telemetry: {
         traces: { endpoint: "https://collector.example.com/v1/traces", headers: {} },
       },
@@ -168,7 +168,7 @@ describe("Stagehand runtime state", () => {
       status: "initialized",
       initParams: {
         ...runtimeIdentity,
-        model: { modelName: "openai/gpt-5" },
+        model: { modelName: "openai/gpt-5.6-luna" },
         telemetry: {
           traces: { endpoint: "https://collector.example.com/v1/traces", headers: {} },
         },
@@ -321,7 +321,7 @@ describe("Stagehand runtime state", () => {
     });
     await runtime.initialize({
       ...runtimeIdentity,
-      model: { modelName: "openai/gpt-5", apiKey: "secret" },
+      model: { modelName: "openai/gpt-5.6-luna", apiKey: "secret" },
       telemetry: {
         traces: { endpoint: "https://collector.example.com/v1/traces", headers: {} },
       },
diff --git a/packages/integrations/core/src/facade/config.ts b/packages/integrations/core/src/facade/config.ts
index 14c5ab9a57..d8ad6e885b 100644
--- a/packages/integrations/core/src/facade/config.ts
+++ b/packages/integrations/core/src/facade/config.ts
@@ -45,7 +45,7 @@ export function stagehandFacadeConfigFromEnv(
 
   const inferredGoogleKey = providerApiKey("google", env);
   const modelName =
-    explicitModelName ?? (inferredGoogleKey ? "google/gemini-3.6-flash" : undefined);
+    explicitModelName ?? (inferredGoogleKey ? "google/gemini-3.8-flash" : undefined);
   const modelProvider = modelName ? providerName(modelName) : undefined;
   const modelApiKey = explicitModelApiKey ?? providerApiKey(modelProvider, env);
   const parsed = StagehandClientCreateConfigSchema.safeParse({
diff --git a/packages/integrations/eve/README.md b/packages/integrations/eve/README.md
index 50a35634e8..f5e82360f8 100644
--- a/packages/integrations/eve/README.md
+++ b/packages/integrations/eve/README.md
@@ -23,7 +23,7 @@ Configure the environment as needed:
 | `STAGEHAND_EVE_SESSION_FILE`                                         | Optional path used to persist the Browserbase session ID; defaults to a file in the system temporary directory.                                         |
 | `EVE_STAGEHAND_MODEL`                                                | Eve agent model; defaults to `gpt-5.6-luna`.                                                                                                            |
 | `OPENAI_API_KEY`                                                     | OpenAI credential used by the Eve agent model and inferred for an OpenAI Stagehand model.                                                               |
-| `GOOGLE_GENERATIVE_AI_API_KEY` / `GEMINI_API_KEY` / `GOOGLE_API_KEY` | Google credential inferred by Stagehand. If one is set without explicit Stagehand model configuration, the model defaults to `google/gemini-3.6-flash`. |
+| `GOOGLE_GENERATIVE_AI_API_KEY` / `GEMINI_API_KEY` / `GOOGLE_API_KEY` | Google credential inferred by Stagehand. If one is set without explicit Stagehand model configuration, the model defaults to `google/gemini-3.8-flash`. |
 
 ## Run
 
diff --git a/packages/protocol/schemas.ts b/packages/protocol/schemas.ts
index 87e0be02af..4a0d0e18db 100644
--- a/packages/protocol/schemas.ts
+++ b/packages/protocol/schemas.ts
@@ -3,9 +3,8 @@ import { StagehandProtocolVersionSchema } from "./protocol-version.ts";
 
 export { STAGEHAND_PROTOCOL_VERSION } from "./protocol-version.ts";
 
-// Seeded from the explicit model IDs in Vercel AI SDK's provider packages.
-// Stagehand owns these allowlists: changes are reviewed and maintained here
-// rather than inherited automatically from the SDK.
+// Language models that are still reachable on the provider APIs (OpenAI, Anthropic, Gemini).
+// Stagehand owns these allowlists.
 export const OpenAIModelIdSchema = z
   .enum([
     "gpt-4.1",
@@ -15,21 +14,10 @@ export const OpenAIModelIdSchema = z
     "gpt-4.1-nano",
     "gpt-4.1-nano-2025-04-14",
     "gpt-4o",
-    "gpt-4o-2024-05-13",
     "gpt-4o-2024-08-06",
     "gpt-4o-2024-11-20",
-    "gpt-4o-audio-preview",
-    "gpt-4o-audio-preview-2024-12-17",
-    "gpt-4o-search-preview",
-    "gpt-4o-search-preview-2025-03-11",
-    "gpt-4o-mini-search-preview",
-    "gpt-4o-mini-search-preview-2025-03-11",
     "gpt-4o-mini",
     "gpt-4o-mini-2024-07-18",
-    "gpt-3.5-turbo-0125",
-    "gpt-3.5-turbo",
-    "gpt-3.5-turbo-1106",
-    "gpt-5-chat-latest",
     "o1",
     "o1-2024-12-17",
     "o3",
@@ -40,7 +28,6 @@ export const OpenAIModelIdSchema = z
     "o4-mini-2025-04-16",
     "gpt-5",
     "gpt-5-2025-08-07",
-    "gpt-5-codex",
     "gpt-5-mini",
     "gpt-5-mini-2025-08-07",
     "gpt-5-nano",
@@ -48,15 +35,8 @@ export const OpenAIModelIdSchema = z
     "gpt-5-pro",
     "gpt-5-pro-2025-10-06",
     "gpt-5.1",
-    "gpt-5.1-chat-latest",
-    "gpt-5.1-codex-mini",
-    "gpt-5.1-codex",
-    "gpt-5.1-codex-max",
     "gpt-5.2",
-    "gpt-5.2-chat-latest",
     "gpt-5.2-pro",
-    "gpt-5.2-codex",
-    "gpt-5.3-chat-latest",
     "gpt-5.3-codex",
     "gpt-5.4",
     "gpt-5.4-2026-03-05",
@@ -68,78 +48,56 @@ export const OpenAIModelIdSchema = z
     "gpt-5.4-pro-2026-03-05",
     "gpt-5.5",
     "gpt-5.5-2026-04-23",
+    "gpt-5.5-pro",
     "gpt-5.6",
     "gpt-5.6-luna",
     "gpt-5.6-sol",
     "gpt-5.6-terra",
+    "gpt-6-astra",
   ])
   .meta({ id: "OpenAIModelId" });
 
 export const AnthropicModelIdSchema = z
   .enum([
-    "claude-3-haiku-20240307",
-    "claude-haiku-4-5-20251001",
     "claude-haiku-4-5",
-    "claude-opus-4-0",
-    "claude-opus-4-20250514",
-    "claude-opus-4-1-20250805",
-    "claude-opus-4-1",
-    "claude-opus-4-5",
-    "claude-opus-4-5-20251101",
-    "claude-sonnet-4-0",
-    "claude-sonnet-4-20250514",
-    "claude-sonnet-4-5-20250929",
+    "claude-haiku-4-5-20251001",
     "claude-sonnet-4-5",
+    "claude-sonnet-4-5-20250929",
     "claude-sonnet-4-6",
+    "claude-sonnet-5",
+    "claude-opus-4-5",
+    "claude-opus-4-5-20251101",
     "claude-opus-4-6",
     "claude-opus-4-7",
     "claude-opus-4-8",
+    "claude-opus-5",
     "claude-fable-5",
-    "claude-sonnet-5",
+    "claude-fable-5-1",
   ])
   .meta({ id: "AnthropicModelId" });
 
 export const GoogleModelIdSchema = z
   .enum([
-    "gemini-2.0-flash",
-    "gemini-2.0-flash-001",
-    "gemini-2.0-flash-lite",
-    "gemini-2.0-flash-lite-001",
     "gemini-2.5-pro",
     "gemini-2.5-flash",
     "gemini-2.5-flash-image",
     "gemini-2.5-flash-lite",
-    "gemini-2.5-flash-preview-tts",
-    "gemini-2.5-pro-preview-tts",
-    "gemini-2.5-flash-native-audio-latest",
-    "gemini-2.5-flash-native-audio-preview-09-2025",
-    "gemini-2.5-flash-native-audio-preview-12-2025",
     "gemini-2.5-computer-use-preview-10-2025",
-    "gemini-3-pro-preview",
-    "gemini-3-pro-image-preview",
     "gemini-3-flash-preview",
+    "gemini-3-pro-image",
     "gemini-3.1-pro-preview",
-    "gemini-3.1-pro-preview-customtools",
-    "gemini-3.1-flash-image-preview",
-    "gemini-3.1-flash-lite-preview",
-    "gemini-3.1-flash-tts-preview",
+    "gemini-3.1-flash-image",
+    "gemini-3.1-flash-lite",
+    "gemini-3.1-flash-lite-image",
     "gemini-3.5-flash",
+    "gemini-3.5-flash-lite",
     "gemini-3.6-flash",
+    "gemini-3.7-flash",
+    "gemini-3.8-flash",
+    "gemini-omni-1.1-flash",
     "gemini-pro-latest",
     "gemini-flash-latest",
     "gemini-flash-lite-latest",
-    "deep-research-pro-preview-12-2025",
-    "deep-research-max-preview-04-2026",
-    "deep-research-preview-04-2026",
-    "nano-banana-pro-preview",
-    "aqa",
-    "gemini-robotics-er-1.5-preview",
-    "gemma-3-1b-it",
-    "gemma-3-4b-it",
-    "gemma-3n-e4b-it",
-    "gemma-3n-e2b-it",
-    "gemma-3-12b-it",
-    "gemma-3-27b-it",
   ])
   .meta({ id: "GoogleModelId" });
 
diff --git a/packages/protocol/stagehand.v4.json b/packages/protocol/stagehand.v4.json
index c91ab6cc08..257eb1e932 100644
--- a/packages/protocol/stagehand.v4.json
+++ b/packages/protocol/stagehand.v4.json
@@ -1268,15 +1268,15 @@
     },
     "OpenAIModelName": {
       "type": "string",
-      "pattern": "^openai\\/(gpt-4\\.1|gpt-4\\.1-2025-04-14|gpt-4\\.1-mini|gpt-4\\.1-mini-2025-04-14|gpt-4\\.1-nano|gpt-4\\.1-nano-2025-04-14|gpt-4o|gpt-4o-2024-05-13|gpt-4o-2024-08-06|gpt-4o-2024-11-20|gpt-4o-audio-preview|gpt-4o-audio-preview-2024-12-17|gpt-4o-search-preview|gpt-4o-search-preview-2025-03-11|gpt-4o-mini-search-preview|gpt-4o-mini-search-preview-2025-03-11|gpt-4o-mini|gpt-4o-mini-2024-07-18|gpt-3\\.5-turbo-0125|gpt-3\\.5-turbo|gpt-3\\.5-turbo-1106|gpt-5-chat-latest|o1|o1-2024-12-17|o3|o3-2025-04-16|o3-mini|o3-mini-2025-01-31|o4-mini|o4-mini-2025-04-16|gpt-5|gpt-5-2025-08-07|gpt-5-codex|gpt-5-mini|gpt-5-mini-2025-08-07|gpt-5-nano|gpt-5-nano-2025-08-07|gpt-5-pro|gpt-5-pro-2025-10-06|gpt-5\\.1|gpt-5\\.1-chat-latest|gpt-5\\.1-codex-mini|gpt-5\\.1-codex|gpt-5\\.1-codex-max|gpt-5\\.2|gpt-5\\.2-chat-latest|gpt-5\\.2-pro|gpt-5\\.2-codex|gpt-5\\.3-chat-latest|gpt-5\\.3-codex|gpt-5\\.4|gpt-5\\.4-2026-03-05|gpt-5\\.4-mini|gpt-5\\.4-mini-2026-03-17|gpt-5\\.4-nano|gpt-5\\.4-nano-2026-03-17|gpt-5\\.4-pro|gpt-5\\.4-pro-2026-03-05|gpt-5\\.5|gpt-5\\.5-2026-04-23|gpt-5\\.6|gpt-5\\.6-luna|gpt-5\\.6-sol|gpt-5\\.6-terra)$"
+      "pattern": "^openai\\/(gpt-4\\.1|gpt-4\\.1-2025-04-14|gpt-4\\.1-mini|gpt-4\\.1-mini-2025-04-14|gpt-4\\.1-nano|gpt-4\\.1-nano-2025-04-14|gpt-4o|gpt-4o-2024-08-06|gpt-4o-2024-11-20|gpt-4o-mini|gpt-4o-mini-2024-07-18|o1|o1-2024-12-17|o3|o3-2025-04-16|o3-mini|o3-mini-2025-01-31|o4-mini|o4-mini-2025-04-16|gpt-5|gpt-5-2025-08-07|gpt-5-mini|gpt-5-mini-2025-08-07|gpt-5-nano|gpt-5-nano-2025-08-07|gpt-5-pro|gpt-5-pro-2025-10-06|gpt-5\\.1|gpt-5\\.2|gpt-5\\.2-pro|gpt-5\\.3-codex|gpt-5\\.4|gpt-5\\.4-2026-03-05|gpt-5\\.4-mini|gpt-5\\.4-mini-2026-03-17|gpt-5\\.4-nano|gpt-5\\.4-nano-2026-03-17|gpt-5\\.4-pro|gpt-5\\.4-pro-2026-03-05|gpt-5\\.5|gpt-5\\.5-2026-04-23|gpt-5\\.5-pro|gpt-5\\.6|gpt-5\\.6-luna|gpt-5\\.6-sol|gpt-5\\.6-terra|gpt-6-astra)$"
     },
     "AnthropicModelName": {
       "type": "string",
-      "pattern": "^anthropic\\/(claude-3-haiku-20240307|claude-haiku-4-5-20251001|claude-haiku-4-5|claude-opus-4-0|claude-opus-4-20250514|claude-opus-4-1-20250805|claude-opus-4-1|claude-opus-4-5|claude-opus-4-5-20251101|claude-sonnet-4-0|claude-sonnet-4-20250514|claude-sonnet-4-5-20250929|claude-sonnet-4-5|claude-sonnet-4-6|claude-opus-4-6|claude-opus-4-7|claude-opus-4-8|claude-fable-5|claude-sonnet-5)$"
+      "pattern": "^anthropic\\/(claude-haiku-4-5|claude-haiku-4-5-20251001|claude-sonnet-4-5|claude-sonnet-4-5-20250929|claude-sonnet-4-6|claude-sonnet-5|claude-opus-4-5|claude-opus-4-5-20251101|claude-opus-4-6|claude-opus-4-7|claude-opus-4-8|claude-opus-5|claude-fable-5|claude-fable-5-1)$"
     },
     "GoogleModelName": {
       "type": "string",
-      "pattern": "^google\\/(gemini-2\\.0-flash|gemini-2\\.0-flash-001|gemini-2\\.0-flash-lite|gemini-2\\.0-flash-lite-001|gemini-2\\.5-pro|gemini-2\\.5-flash|gemini-2\\.5-flash-image|gemini-2\\.5-flash-lite|gemini-2\\.5-flash-preview-tts|gemini-2\\.5-pro-preview-tts|gemini-2\\.5-flash-native-audio-latest|gemini-2\\.5-flash-native-audio-preview-09-2025|gemini-2\\.5-flash-native-audio-preview-12-2025|gemini-2\\.5-computer-use-preview-10-2025|gemini-3-pro-preview|gemini-3-pro-image-preview|gemini-3-flash-preview|gemini-3\\.1-pro-preview|gemini-3\\.1-pro-preview-customtools|gemini-3\\.1-flash-image-preview|gemini-3\\.1-flash-lite-preview|gemini-3\\.1-flash-tts-preview|gemini-3\\.5-flash|gemini-3\\.6-flash|gemini-pro-latest|gemini-flash-latest|gemini-flash-lite-latest|deep-research-pro-preview-12-2025|deep-research-max-preview-04-2026|deep-research-preview-04-2026|nano-banana-pro-preview|aqa|gemini-robotics-er-1\\.5-preview|gemma-3-1b-it|gemma-3-4b-it|gemma-3n-e4b-it|gemma-3n-e2b-it|gemma-3-12b-it|gemma-3-27b-it)$"
+      "pattern": "^google\\/(gemini-2\\.5-pro|gemini-2\\.5-flash|gemini-2\\.5-flash-image|gemini-2\\.5-flash-lite|gemini-2\\.5-computer-use-preview-10-2025|gemini-3-flash-preview|gemini-3-pro-image|gemini-3\\.1-pro-preview|gemini-3\\.1-flash-image|gemini-3\\.1-flash-lite|gemini-3\\.1-flash-lite-image|gemini-3\\.5-flash|gemini-3\\.5-flash-lite|gemini-3\\.6-flash|gemini-3\\.7-flash|gemini-3\\.8-flash|gemini-omni-1\\.1-flash|gemini-pro-latest|gemini-flash-latest|gemini-flash-lite-latest)$"
     },
     "GroqModelName": {
       "type": "string",
diff --git a/packages/protocol/tests/protocol/object-model-protocol.test.ts b/packages/protocol/tests/protocol/object-model-protocol.test.ts
index d2c708ffa5..cff8e0e281 100644
--- a/packages/protocol/tests/protocol/object-model-protocol.test.ts
+++ b/packages/protocol/tests/protocol/object-model-protocol.test.ts
@@ -54,7 +54,7 @@ describe("Stagehand object-model protocol", () => {
         sessionId: "session_123",
         region: "eu-central-1",
       },
-      model: { modelName: "openai/gpt-5-mini" },
+      model: { modelName: "openai/gpt-5.6-luna" },
     });
 
     expect(params).toStrictEqual({
@@ -66,7 +66,7 @@ describe("Stagehand object-model protocol", () => {
         sessionId: "session_123",
         region: "eu-central-1",
       },
-      model: { modelName: "openai/gpt-5-mini" },
+      model: { modelName: "openai/gpt-5.6-luna" },
       telemetry: {
         traces: {
           endpoint: "https://example.com/v1/traces",
diff --git a/packages/protocol/tests/protocol/wire-casing.test.ts b/packages/protocol/tests/protocol/wire-casing.test.ts
index 0efedefd0c..0171304d20 100644
--- a/packages/protocol/tests/protocol/wire-casing.test.ts
+++ b/packages/protocol/tests/protocol/wire-casing.test.ts
@@ -436,7 +436,7 @@ describe("JSON-RPC wire casing", () => {
         region: "eu-central-1" as const,
       },
       model: {
-        modelName: "openai/gpt-5-mini",
+        modelName: "openai/gpt-5.6-luna",
         headers: { doNotRenameMe: "value" },
       },
       telemetry: {
@@ -457,7 +457,7 @@ describe("JSON-RPC wire casing", () => {
         region: "eu-central-1",
       },
       model: {
-        model_name: "openai/gpt-5-mini",
+        model_name: "openai/gpt-5.6-luna",
         headers: { doNotRenameMe: "value" },
       },
       telemetry: {
diff --git a/packages/sdk-go/internal/extensionassets/stagehand-extension.zip b/packages/sdk-go/internal/extensionassets/stagehand-extension.zip
index 3833853d84..d5474c341f 100644
Binary files a/packages/sdk-go/internal/extensionassets/stagehand-extension.zip and b/packages/sdk-go/internal/extensionassets/stagehand-extension.zip differ
diff --git a/packages/sdk-go/models_test.go b/packages/sdk-go/models_test.go
index 33c945ace0..8b90881cb2 100644
--- a/packages/sdk-go/models_test.go
+++ b/packages/sdk-go/models_test.go
@@ -173,10 +173,10 @@ func TestObjectUnionsRoundTrip(t *testing.T) {
 		},
 		{
 			name:  "model",
-			value: ModelConfig{ModelName: ModelName("openai/gpt-5.6")},
+			value: ModelConfig{ModelName: ModelName("openai/gpt-5.6-sol")},
 			new:   func() any { return new(ModelConfig) },
 			check: func(t *testing.T, value any) {
-				if value.(*ModelConfig).ModelName != ModelName("openai/gpt-5.6") {
+				if value.(*ModelConfig).ModelName != ModelName("openai/gpt-5.6-sol") {
 					t.Fatal("decoded the wrong model configuration")
 				}
 			},
diff --git a/packages/sdk-python/src/stagehand/_generated/models.py b/packages/sdk-python/src/stagehand/_generated/models.py
index f9ecf9cda2..5998ee346b 100644
--- a/packages/sdk-python/src/stagehand/_generated/models.py
+++ b/packages/sdk-python/src/stagehand/_generated/models.py
@@ -148,7 +148,7 @@ class AnthropicModelName(RootModel[StrictStr]):
     root: Annotated[
         StrictStr,
         Field(
-            pattern="^anthropic\\/(claude-3-haiku-20240307|claude-haiku-4-5-20251001|claude-haiku-4-5|claude-opus-4-0|claude-opus-4-20250514|claude-opus-4-1-20250805|claude-opus-4-1|claude-opus-4-5|claude-opus-4-5-20251101|claude-sonnet-4-0|claude-sonnet-4-20250514|claude-sonnet-4-5-20250929|claude-sonnet-4-5|claude-sonnet-4-6|claude-opus-4-6|claude-opus-4-7|claude-opus-4-8|claude-fable-5|claude-sonnet-5)$"
+            pattern="^anthropic\\/(claude-haiku-4-5|claude-haiku-4-5-20251001|claude-sonnet-4-5|claude-sonnet-4-5-20250929|claude-sonnet-4-6|claude-sonnet-5|claude-opus-4-5|claude-opus-4-5-20251101|claude-opus-4-6|claude-opus-4-7|claude-opus-4-8|claude-opus-5|claude-fable-5|claude-fable-5-1)$"
         ),
     ]
 
@@ -712,7 +712,7 @@ class GoogleModelName(RootModel[StrictStr]):
     root: Annotated[
         StrictStr,
         Field(
-            pattern="^google\\/(gemini-2\\.0-flash|gemini-2\\.0-flash-001|gemini-2\\.0-flash-lite|gemini-2\\.0-flash-lite-001|gemini-2\\.5-pro|gemini-2\\.5-flash|gemini-2\\.5-flash-image|gemini-2\\.5-flash-lite|gemini-2\\.5-flash-preview-tts|gemini-2\\.5-pro-preview-tts|gemini-2\\.5-flash-native-audio-latest|gemini-2\\.5-flash-native-audio-preview-09-2025|gemini-2\\.5-flash-native-audio-preview-12-2025|gemini-2\\.5-computer-use-preview-10-2025|gemini-3-pro-preview|gemini-3-pro-image-preview|gemini-3-flash-preview|gemini-3\\.1-pro-preview|gemini-3\\.1-pro-preview-customtools|gemini-3\\.1-flash-image-preview|gemini-3\\.1-flash-lite-preview|gemini-3\\.1-flash-tts-preview|gemini-3\\.5-flash|gemini-3\\.6-flash|gemini-pro-latest|gemini-flash-latest|gemini-flash-lite-latest|deep-research-pro-preview-12-2025|deep-research-max-preview-04-2026|deep-research-preview-04-2026|nano-banana-pro-preview|aqa|gemini-robotics-er-1\\.5-preview|gemma-3-1b-it|gemma-3-4b-it|gemma-3n-e4b-it|gemma-3n-e2b-it|gemma-3-12b-it|gemma-3-27b-it)$"
+            pattern="^google\\/(gemini-2\\.5-pro|gemini-2\\.5-flash|gemini-2\\.5-flash-image|gemini-2\\.5-flash-lite|gemini-2\\.5-computer-use-preview-10-2025|gemini-3-flash-preview|gemini-3-pro-image|gemini-3\\.1-pro-preview|gemini-3\\.1-flash-image|gemini-3\\.1-flash-lite|gemini-3\\.1-flash-lite-image|gemini-3\\.5-flash|gemini-3\\.5-flash-lite|gemini-3\\.6-flash|gemini-3\\.7-flash|gemini-3\\.8-flash|gemini-omni-1\\.1-flash|gemini-pro-latest|gemini-flash-latest|gemini-flash-lite-latest)$"
         ),
     ]
 
@@ -1433,7 +1433,7 @@ class OpenAIModelName(RootModel[StrictStr]):
     root: Annotated[
         StrictStr,
         Field(
-            pattern="^openai\\/(gpt-4\\.1|gpt-4\\.1-2025-04-14|gpt-4\\.1-mini|gpt-4\\.1-mini-2025-04-14|gpt-4\\.1-nano|gpt-4\\.1-nano-2025-04-14|gpt-4o|gpt-4o-2024-05-13|gpt-4o-2024-08-06|gpt-4o-2024-11-20|gpt-4o-audio-preview|gpt-4o-audio-preview-2024-12-17|gpt-4o-search-preview|gpt-4o-search-preview-2025-03-11|gpt-4o-mini-search-preview|gpt-4o-mini-search-preview-2025-03-11|gpt-4o-mini|gpt-4o-mini-2024-07-18|gpt-3\\.5-turbo-0125|gpt-3\\.5-turbo|gpt-3\\.5-turbo-1106|gpt-5-chat-latest|o1|o1-2024-12-17|o3|o3-2025-04-16|o3-mini|o3-mini-2025-01-31|o4-mini|o4-mini-2025-04-16|gpt-5|gpt-5-2025-08-07|gpt-5-codex|gpt-5-mini|gpt-5-mini-2025-08-07|gpt-5-nano|gpt-5-nano-2025-08-07|gpt-5-pro|gpt-5-pro-2025-10-06|gpt-5\\.1|gpt-5\\.1-chat-latest|gpt-5\\.1-codex-mini|gpt-5\\.1-codex|gpt-5\\.1-codex-max|gpt-5\\.2|gpt-5\\.2-chat-latest|gpt-5\\.2-pro|gpt-5\\.2-codex|gpt-5\\.3-chat-latest|gpt-5\\.3-codex|gpt-5\\.4|gpt-5\\.4-2026-03-05|gpt-5\\.4-mini|gpt-5\\.4-mini-2026-03-17|gpt-5\\.4-nano|gpt-5\\.4-nano-2026-03-17|gpt-5\\.4-pro|gpt-5\\.4-pro-2026-03-05|gpt-5\\.5|gpt-5\\.5-2026-04-23|gpt-5\\.6|gpt-5\\.6-luna|gpt-5\\.6-sol|gpt-5\\.6-terra)$"
+            pattern="^openai\\/(gpt-4\\.1|gpt-4\\.1-2025-04-14|gpt-4\\.1-mini|gpt-4\\.1-mini-2025-04-14|gpt-4\\.1-nano|gpt-4\\.1-nano-2025-04-14|gpt-4o|gpt-4o-2024-08-06|gpt-4o-2024-11-20|gpt-4o-mini|gpt-4o-mini-2024-07-18|o1|o1-2024-12-17|o3|o3-2025-04-16|o3-mini|o3-mini-2025-01-31|o4-mini|o4-mini-2025-04-16|gpt-5|gpt-5-2025-08-07|gpt-5-mini|gpt-5-mini-2025-08-07|gpt-5-nano|gpt-5-nano-2025-08-07|gpt-5-pro|gpt-5-pro-2025-10-06|gpt-5\\.1|gpt-5\\.2|gpt-5\\.2-pro|gpt-5\\.3-codex|gpt-5\\.4|gpt-5\\.4-2026-03-05|gpt-5\\.4-mini|gpt-5\\.4-mini-2026-03-17|gpt-5\\.4-nano|gpt-5\\.4-nano-2026-03-17|gpt-5\\.4-pro|gpt-5\\.4-pro-2026-03-05|gpt-5\\.5|gpt-5\\.5-2026-04-23|gpt-5\\.5-pro|gpt-5\\.6|gpt-5\\.6-luna|gpt-5\\.6-sol|gpt-5\\.6-terra|gpt-6-astra)$"
         ),
     ]
 
diff --git a/packages/sdk-python/tests/test_stagehand.py b/packages/sdk-python/tests/test_stagehand.py
index fed1c0e519..12969a55c4 100644
--- a/packages/sdk-python/tests/test_stagehand.py
+++ b/packages/sdk-python/tests/test_stagehand.py
@@ -890,7 +890,7 @@ async def test_stagehand_routes_metrics_and_ai_methods(
     browser, _ = _browser_handle()
     stagehand = await Stagehand.create(browser=browser)
     page = Page(cast(RPCClient, recording), PageRef(page_id="explicit-page"))
-    model: ModelConfig = {"model_name": "openai/gpt-4.1-mini"}
+    model: ModelConfig = {"model_name": "openai/gpt-5.6-luna"}
     act_locator = page.locator("main").nth(2)
     act_ignored_locator = page.locator(".promo")
     locator = page.locator("main").nth(1)
diff --git a/packages/sdk-ts/tests/packageContract.test.ts b/packages/sdk-ts/tests/packageContract.test.ts
index 58f5e1228c..3e5d1fcbb4 100644
--- a/packages/sdk-ts/tests/packageContract.test.ts
+++ b/packages/sdk-ts/tests/packageContract.test.ts
@@ -124,7 +124,7 @@ describe("published TypeScript SDK", () => {
 
           const loadState: LoadState = "domcontentloaded";
           const mouseButton: MouseButton = "left";
-          const modelName: ModelName = "openai/gpt-5";
+          const modelName: ModelName = "openai/gpt-5.6-luna";
           const model: ModelConfig = { modelName };
           const caching: Caching = { threshold: 2 };
           const variables: Variables = {