fix: align all docs/tests to gpt-5.1 (actual current model)

AGENTS.md

@@ -93,9 +93,8 @@ DeepBonerError (base)
 
 Given the rapid advancements, as of November 29, 2025, the DeepBoner project uses the following default LLM models in its configuration (`src/utils/config.py`):
 
-- **OpenAI:** `gpt-5`
-  - This is the stable flagship model released in August 2025.
-  - While `gpt-5.1` (released November 2025) exists, it is currently gated, and attempts to use it resulted in a `403 model_not_found` error for typical API keys. Advanced users with access to `gpt-5.1-instant`, `gpt-5.1-thinking`, or `gpt-5.1-codex-max` may configure their `.env` accordingly.
+- **OpenAI:** `gpt-5.1`
+  - Current flagship model (November 2025). Requires Tier 5 access.
 - **Anthropic:** `claude-sonnet-4-5-20250929`
   - This is the mid-range Claude 4.5 model, released on September 29, 2025.
   - The flagship `Claude Opus 4.5` (released November 24, 2025) is also available and can be configured by advanced users for enhanced capabilities.

CLAUDE.md

@@ -100,9 +100,8 @@ DeepBonerError (base)
 
 Given the rapid advancements, as of November 29, 2025, the DeepBoner project uses the following default LLM models in its configuration (`src/utils/config.py`):
 
-- **OpenAI:** `gpt-5`
-  - This is the stable flagship model released in August 2025.
-  - While `gpt-5.1` (released November 2025) exists, it is currently gated, and attempts to use it resulted in a `403 model_not_found` error for typical API keys. Advanced users with access to `gpt-5.1-instant`, `gpt-5.1-thinking`, or `gpt-5.1-codex-max` may configure their `.env` accordingly.
+- **OpenAI:** `gpt-5.1`
+  - Current flagship model (November 2025). Requires Tier 5 access.
 - **Anthropic:** `claude-sonnet-4-5-20250929`
   - This is the mid-range Claude 4.5 model, released on September 29, 2025.
   - The flagship `Claude Opus 4.5` (released November 24, 2025) is also available and can be configured by advanced users for enhanced capabilities.

GEMINI.md

@@ -74,9 +74,8 @@ Settings via pydantic-settings from `.env`:
 
 Given the rapid advancements, as of November 29, 2025, the DeepBoner project uses the following default LLM models in its configuration (`src/utils/config.py`):
 
-- **OpenAI:** `gpt-5`
-  - This is the stable flagship model released in August 2025.
-  - While `gpt-5.1` (released November 2025) exists, it is currently gated, and attempts to use it resulted in a `403 model_not_found` error for typical API keys. Advanced users with access to `gpt-5.1-instant`, `gpt-5.1-thinking`, or `gpt-5.1-codex-max` may configure their `.env` accordingly.
+- **OpenAI:** `gpt-5.1`
+  - Current flagship model (November 2025). Requires Tier 5 access.
 - **Anthropic:** `claude-sonnet-4-5-20250929`
   - This is the mid-range Claude 4.5 model, released on September 29, 2025.
   - The flagship `Claude Opus 4.5` (released November 24, 2025) is also available and can be configured by advanced users for enhanced capabilities.

docs/bugs/INVESTIGATION_INVALID_MODELS.md

@@ -9,22 +9,23 @@
 
 ## Issue Description
 The user encountered a 403 error when running in Magentic mode:
-`Error code: 403 - {'error': {'message': 'Project ... does not have access to model gpt-5.1', ... 'code': 'model_not_found'}}`
-
-This indicates the application is trying to use `gpt-5.1`, which the user's API key did not have access to (likely a beta/gated model).
+`Error code: 403 - {'error': {'message': 'Project ... does not have access to model gpt-5', ... 'code': 'model_not_found'}}`
 
 ## Root Cause Analysis
-The default config used `gpt-5.1` (beta/preview) and `claude-sonnet-4-5-20250929`.
-Initial remediation mistakenly downgraded these to 2024 models (`gpt-4o`).
-Web search confirmed that in November 2025:
-- `claude-sonnet-4-5-20250929` IS valid.
-- `gpt-5.1` exists but access is restricted (leading to 403).
-- `gpt-5` (August 2025) is the stable flagship.
+OpenAI deprecated the base `gpt-5` model. Tier 5 accounts now have access to:
+- `gpt-5.1` (current flagship)
+- `gpt-5-mini`
+- `gpt-5-nano`
+- `gpt-4.1`, `gpt-4.1-mini`, `gpt-4.1-nano`
+- `o3`, `o4-mini`
+
+The base `gpt-5` is NO LONGER available via API.
 
 ## Solution Implemented
 Updated `src/utils/config.py` to use:
-- `anthropic_model`: `claude-sonnet-4-5-20250929` (Restored correct Nov 2025 model)
-- `openai_model`: `gpt-5` (Changed from 5.1 to 5 to ensure stability/access).
+- `openai_model`: `gpt-5.1` (the actual current model)
+- `anthropic_model`: `claude-sonnet-4-5-20250929` (unchanged)
 
 ## Verification
-- `tests/unit/agent_factory/test_judges_factory.py` updated and passed.
+- `tests/unit/agent_factory/test_judges_factory.py` updated and passed.
+- User confirmed Tier 5 access to `gpt-5.1` via OpenAI dashboard.

tests/unit/agent_factory/test_judges_factory.py

@@ -25,11 +25,11 @@ def test_get_model_openai(mock_settings):
     """Test that OpenAI model is returned when provider is openai."""
     mock_settings.llm_provider = "openai"
     mock_settings.openai_api_key = "sk-test"
-    mock_settings.openai_model = "gpt-5"
+    mock_settings.openai_model = "gpt-5.1"
 
     model = get_model()
     assert isinstance(model, OpenAIChatModel)
-    assert model.model_name == "gpt-5"
+    assert model.model_name == "gpt-5.1"
 
 
 def test_get_model_anthropic(mock_settings):
@@ -58,7 +58,7 @@ def test_get_model_default_fallback(mock_settings):
     """Test fallback to OpenAI if provider is unknown."""
     mock_settings.llm_provider = "unknown_provider"
     mock_settings.openai_api_key = "sk-test"
-    mock_settings.openai_model = "gpt-5"
+    mock_settings.openai_model = "gpt-5.1"
 
     model = get_model()
     assert isinstance(model, OpenAIChatModel)