diff --git a/.env.example b/.env.example
index 39ec7fc..8a4252d 100644
--- a/.env.example
+++ b/.env.example
@@ -15,7 +15,7 @@ OPENDIRECT_API_KEY=
 # Provider: Anthropic (default)
 ANTHROPIC_API_KEY=your-anthropic-api-key-here
 DEFAULT_LLM_MODEL=anthropic/claude-sonnet-4-5-20250929
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 LLM_TEMPERATURE=0.3
 LLM_MAX_TOKENS=4096
 
@@ -37,7 +37,7 @@ LLM_MAX_TOKENS=4096
 # AWS_SECRET_ACCESS_KEY=your-aws-secret-key
 # AWS_REGION=us-west-2
 # DEFAULT_LLM_MODEL=bedrock/us.anthropic.claude-sonnet-4-5-20250929-v1:0
-# MANAGER_LLM_MODEL=bedrock/us.anthropic.claude-opus-4-20250514-v1:0
+# MANAGER_LLM_MODEL=bedrock/us.anthropic.claude-opus-4-8
 
 # Provider: Custom OpenAI-compatible endpoint (alternative)
 # For endpoints with no CrewAI native provider prefix of their own — NVIDIA
diff --git a/docs/ai-assistant/developer-setup.md b/docs/ai-assistant/developer-setup.md
index 9ba0198..e90f2ed 100644
--- a/docs/ai-assistant/developer-setup.md
+++ b/docs/ai-assistant/developer-setup.md
@@ -86,7 +86,7 @@ CORS_ALLOWED_ORIGINS=http://localhost:3000,http://localhost:8080
 
 # LLM model overrides (optional)
 DEFAULT_LLM_MODEL=anthropic/claude-sonnet-4-5-20250929
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 ```
 
 ## Step 6: Start the Server
diff --git a/docs/architecture/agent-hierarchy.md b/docs/architecture/agent-hierarchy.md
index eb3aaf8..8b47138 100644
--- a/docs/architecture/agent-hierarchy.md
+++ b/docs/architecture/agent-hierarchy.md
@@ -61,7 +61,7 @@ The Portfolio Manager is the top-level orchestrator. It receives a campaign brie
 | Attribute | Value |
 |-----------|-------|
 | Role | Portfolio Manager |
-| LLM | `anthropic/claude-opus-4-20250514` (configurable via `MANAGER_LLM_MODEL`) |
+| LLM | `anthropic/claude-opus-4-8` (configurable via `MANAGER_LLM_MODEL`) |
 | Temperature | 0.3 |
 | Delegation | Enabled --- delegates to Level 2 agents |
 | Memory | Enabled |
diff --git a/docs/getting-started/quickstart.md b/docs/getting-started/quickstart.md
index 887e064..5665227 100644
--- a/docs/getting-started/quickstart.md
+++ b/docs/getting-started/quickstart.md
@@ -52,7 +52,7 @@ ANTHROPIC_API_KEY=sk-ant-...
 
     # LLM model overrides — uses provider/model format (native Anthropic, OpenAI, Gemini, Azure, Bedrock)
     DEFAULT_LLM_MODEL=anthropic/claude-sonnet-4-5-20250929
-    MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+    MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
     # DEFAULT_LLM_MODEL=openai/gpt-4o         # OpenAI example
     # DEFAULT_LLM_MODEL=ollama/llama3          # Local Ollama example
 
diff --git a/docs/guides/configuration.md b/docs/guides/configuration.md
index 5cf5989..3e8c889 100644
--- a/docs/guides/configuration.md
+++ b/docs/guides/configuration.md
@@ -20,7 +20,7 @@ IAB_SERVER_URL=http://localhost:8001
 
 # Optional overrides
 DEFAULT_LLM_MODEL=anthropic/claude-sonnet-4-5-20250929
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 LOG_LEVEL=INFO
 ```
 
@@ -81,7 +81,7 @@ endpoints = settings.get_seller_endpoints()
 | Variable | Type | Default | Description |
 |----------|------|---------|-------------|
 | `DEFAULT_LLM_MODEL` | `str` | `anthropic/claude-sonnet-4-5-20250929` | Model for Level 2 channel specialists and Level 3 functional agents. |
-| `MANAGER_LLM_MODEL` | `str` | `anthropic/claude-opus-4-20250514` | Model for the Level 1 Portfolio Manager. Opus is used for strategic reasoning. |
+| `MANAGER_LLM_MODEL` | `str` | `anthropic/claude-opus-4-8` | Model for the Level 1 Portfolio Manager. Opus is used for strategic reasoning. |
 | `LLM_TEMPERATURE` | `float` | `0.3` | Default temperature for LLM calls. Individual agents may override this. |
 | `LLM_MAX_TOKENS` | `int` | `4096` | Maximum token output for LLM responses. |
 | `OPENAI_COMPATIBLE_LLM_API_KEY` | `str` | `None` | API key for a [custom OpenAI-compatible endpoint](#custom-openai-compatible-endpoints) (optional — some endpoints don't require one). |
@@ -92,7 +92,7 @@ Models are specified in `provider/model-name` format using CrewAI's native provi
 ```bash
 # Use a different model provider
 DEFAULT_LLM_MODEL=openai/gpt-4o
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 ```
 
 ### Supported Providers
diff --git a/docs/guides/deployment-ops-guide.md b/docs/guides/deployment-ops-guide.md
index d3169fc..9a8b6fb 100644
--- a/docs/guides/deployment-ops-guide.md
+++ b/docs/guides/deployment-ops-guide.md
@@ -76,7 +76,7 @@ IAB_SERVER_URL=http://localhost:8000
 
 # LLM models
 DEFAULT_LLM_MODEL=anthropic/claude-sonnet-4-5-20250929
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 
 # Storage
 DATABASE_URL=sqlite:///./ad_buyer.db
@@ -438,7 +438,7 @@ Authentication is enforced via the `X-API-Key` header. Public paths (`/health`,
 | Variable | Default | Description |
 |----------|---------|-------------|
 | `DEFAULT_LLM_MODEL` | `anthropic/claude-sonnet-4-5-20250929` | Model for Level 2 channel specialists and Level 3 functional agents. |
-| `MANAGER_LLM_MODEL` | `anthropic/claude-opus-4-20250514` | Model for the Level 1 Portfolio Manager. Opus is used for strategic reasoning. |
+| `MANAGER_LLM_MODEL` | `anthropic/claude-opus-4-8` | Model for the Level 1 Portfolio Manager. Opus is used for strategic reasoning. |
 | `LLM_TEMPERATURE` | `0.3` | Default temperature. Individual agents use tuned values (0.1–0.5). |
 | `LLM_MAX_TOKENS` | `4096` | Maximum token output per LLM call. |
 
@@ -446,7 +446,7 @@ Models use `provider/model-name` format with CrewAI's native provider integratio
 
 ```dotenv
 DEFAULT_LLM_MODEL=openai/gpt-4o
-MANAGER_LLM_MODEL=anthropic/claude-opus-4-20250514
+MANAGER_LLM_MODEL=anthropic/claude-opus-4-8
 ```
 
 ### Storage
diff --git a/src/ad_buyer/config/agents.yaml b/src/ad_buyer/config/agents.yaml
index 569e5d0..7409ed8 100644
--- a/src/ad_buyer/config/agents.yaml
+++ b/src/ad_buyer/config/agents.yaml
@@ -12,7 +12,7 @@ portfolio_manager:
     mix optimization, and cross-channel attribution.
   allow_delegation: true
   temperature: 0.3
-  model: anthropic/claude-opus-4-20250514
+  model: anthropic/claude-opus-4-8
 
 branding_agent:
   role: "Branding Specialist"
diff --git a/src/ad_buyer/config/settings.py b/src/ad_buyer/config/settings.py
index 4cb5400..baf7c3c 100644
--- a/src/ad_buyer/config/settings.py
+++ b/src/ad_buyer/config/settings.py
@@ -121,7 +121,7 @@ def get_seller_endpoints(self) -> list[str]:
     #   gemini/gemini-2.5-flash                (requires GOOGLE_API_KEY)
     #   bedrock/us.anthropic.claude-sonnet-4-5-20250929-v1:0 (requires AWS creds)
     default_llm_model: str = "anthropic/claude-sonnet-4-5-20250929"
-    manager_llm_model: str = "anthropic/claude-opus-4-20250514"
+    manager_llm_model: str = "anthropic/claude-opus-4-8"
     llm_temperature: float = 0.3
     llm_max_tokens: int = 4096
 
diff --git a/tests/integration/test_api_endpoint_integration.py b/tests/integration/test_api_endpoint_integration.py
index a84d4b9..cd33785 100644
--- a/tests/integration/test_api_endpoint_integration.py
+++ b/tests/integration/test_api_endpoint_integration.py
@@ -149,7 +149,7 @@ def _make_settings(api_key: str = "") -> Settings:
         opendirect_token=None,
         opendirect_api_key=None,
         default_llm_model="anthropic/claude-sonnet-4-5-20250929",
-        manager_llm_model="anthropic/claude-opus-4-20250514",
+        manager_llm_model="anthropic/claude-opus-4-8",
         llm_temperature=0.3,
         llm_max_tokens=4096,
         database_url="sqlite:///./ad_buyer.db",
diff --git a/tests/integration/test_config_registry_coordination.py b/tests/integration/test_config_registry_coordination.py
index d4d2203..727dc4a 100644
--- a/tests/integration/test_config_registry_coordination.py
+++ b/tests/integration/test_config_registry_coordination.py
@@ -34,7 +34,7 @@ def test_settings_seller_endpoints_parsing(self):
             opendirect_token=None,
             opendirect_api_key=None,
             default_llm_model="anthropic/claude-sonnet-4-5-20250929",
-            manager_llm_model="anthropic/claude-opus-4-20250514",
+            manager_llm_model="anthropic/claude-opus-4-8",
             llm_temperature=0.3,
             llm_max_tokens=4096,
             database_url="sqlite:///./test.db",
@@ -63,7 +63,7 @@ def test_settings_empty_endpoints(self):
             opendirect_token=None,
             opendirect_api_key=None,
             default_llm_model="anthropic/claude-sonnet-4-5-20250929",
-            manager_llm_model="anthropic/claude-opus-4-20250514",
+            manager_llm_model="anthropic/claude-opus-4-8",
             llm_temperature=0.3,
             llm_max_tokens=4096,
             database_url="sqlite:///./test.db",
@@ -90,7 +90,7 @@ def test_cors_origins_parsing(self):
             opendirect_token=None,
             opendirect_api_key=None,
             default_llm_model="anthropic/claude-sonnet-4-5-20250929",
-            manager_llm_model="anthropic/claude-opus-4-20250514",
+            manager_llm_model="anthropic/claude-opus-4-8",
             llm_temperature=0.3,
             llm_max_tokens=4096,
             database_url="sqlite:///./test.db",
diff --git a/tests/unit/test_api_auth.py b/tests/unit/test_api_auth.py
index c9937f2..2411373 100644
--- a/tests/unit/test_api_auth.py
+++ b/tests/unit/test_api_auth.py
@@ -27,7 +27,7 @@ def _make_settings(api_key: str = "") -> Settings:
         opendirect_token=None,
         opendirect_api_key=None,
         default_llm_model="anthropic/claude-sonnet-4-5-20250929",
-        manager_llm_model="anthropic/claude-opus-4-20250514",
+        manager_llm_model="anthropic/claude-opus-4-8",
         llm_temperature=0.3,
         llm_max_tokens=4096,
         database_url="sqlite:///./ad_buyer.db",