diff --git a/openapi/aichat.json b/openapi/aichat.json
index a0f85a44..4dd9e5e0 100644
--- a/openapi/aichat.json
+++ b/openapi/aichat.json
@@ -352,6 +352,7 @@
                   },
                   "model": {
                     "enum": [
+                      "gpt-5.6-sol-fast",
                       "gpt-6.1-sol",
                       "gpt-6-sol",
                       "gpt-6-luna",
@@ -913,6 +914,7 @@
                       "gpt-6-astra",
                       "gpt-5.6-luna",
                       "gpt-5.6-terra",
+                      "gpt-5.6-sol-fast",
                       "gpt-5.6-sol",
                       "gpt-5.5",
                       "gpt-5.5-pro",
diff --git a/openapi/claude.json b/openapi/claude.json
index ab508603..656daae9 100644
--- a/openapi/claude.json
+++ b/openapi/claude.json
@@ -656,6 +656,7 @@
             "type": "string",
             "description": "V1 Messages Model",
             "enum": [
+              "gpt-5.6-sol-fast",
               "claude-opus-5-5",
               "claude-sonnet-5-5",
               "claude-fable-5-1",
@@ -1629,6 +1630,7 @@
                   },
                   "model": {
                     "enum": [
+                      "gpt-5.6-sol-fast",
                       "claude-fable-5-1",
                       "claude-fable-5",
                       "claude-opus-5",
diff --git a/openapi/coding.json b/openapi/coding.json
index bd4bb673..4f0d9e3c 100644
--- a/openapi/coding.json
+++ b/openapi/coding.json
@@ -733,6 +733,7 @@
             "type": "string",
             "description": "V1 Messages Model",
             "enum": [
+              "gpt-5.6-sol-fast",
               "claude-opus-5-5",
               "claude-sonnet-5-5",
               "claude-fable-5-1",
@@ -2482,6 +2483,7 @@
                       "gpt-4o-mini:free",
                       "gpt-5.6-luna",
                       "gpt-5.6-terra",
+                      "gpt-5.6-sol-fast",
                       "gpt-5.6-sol",
                       "gpt-5.5",
                       "gpt-5.5-pro",
@@ -3759,6 +3761,7 @@
                   },
                   "model": {
                     "enum": [
+                      "gpt-5.6-sol-fast",
                       "claude-fable-5-1",
                       "claude-fable-5",
                       "claude-opus-5",
@@ -9744,6 +9747,7 @@
                       "gpt-6-astra",
                       "gpt-5.6-luna",
                       "gpt-5.6-terra",
+                      "gpt-5.6-sol-fast",
                       "gpt-5.6-sol",
                       "gpt-5.5",
                       "gpt-5.5-pro",
diff --git a/openapi/openai.json b/openapi/openai.json
index b991884d..78b32c01 100644
--- a/openapi/openai.json
+++ b/openapi/openai.json
@@ -1227,6 +1227,7 @@
                       "gpt-4o-mini:free",
                       "gpt-5.6-luna",
                       "gpt-5.6-terra",
+                      "gpt-5.6-sol-fast",
                       "gpt-5.6-sol",
                       "gpt-5.5",
                       "gpt-5.5-pro",
@@ -3253,6 +3254,7 @@
                       "gpt-6-astra",
                       "gpt-5.6-luna",
                       "gpt-5.6-terra",
+                      "gpt-5.6-sol-fast",
                       "gpt-5.6-sol",
                       "gpt-5.5",
                       "gpt-5.5-pro",