chore(core,langchain,openai): refresh stale OpenAI model references (#37487)

libs/partners/openai/langchain_openai/chat_models/azure.py

@@ -539,12 +539,13 @@ class AzureChatOpenAI(BaseChatOpenAI):
     """
 
     model_name: str | None = Field(default=None, alias="model")  # type: ignore[assignment]
-    """Name of the deployed OpenAI model, e.g. `'gpt-4o'`, `'gpt-35-turbo'`, etc.
+    """Name of the deployed OpenAI model.
 
     Distinct from the Azure deployment name, which is set by the Azure user.
     Used for tracing and token counting.
 
     !!! warning
+
         Does NOT affect completion.
     """
 

libs/partners/openai/langchain_openai/chat_models/base.py

@@ -2323,7 +2323,7 @@ class BaseChatOpenAI(BaseChatModel):
                         \"\"\"Get weather at a location.\"\"\"
                         pass
 
-                    model = init_chat_model("openai:gpt-4o-mini")
+                    model = init_chat_model("openai:gpt-5.5")
 
                     structured_model = model.with_structured_output(
                         ResponseSchema,
@@ -3472,7 +3472,7 @@ class ChatOpenAI(BaseChatOpenAI):  # type: ignore[override]
                         \"\"\"Get weather at a location.\"\"\"
                         pass
 
-                    model = init_chat_model("openai:gpt-4o-mini")
+                    model = init_chat_model("openai:gpt-5.5")
 
                     structured_model = model.with_structured_output(
                         ResponseSchema,

libs/partners/openrouter/langchain_openrouter/chat_models.py

@@ -105,7 +105,7 @@ class ChatOpenRouter(BaseChatModel):
 
         | Param | Type | Description |
         | ----- | ---- | ----------- |
-        | `model` | `str` | Model name, e.g. `'openai/gpt-4o-mini'`. |
+        | `model` | `str` | Model name |
         | `temperature` | `float | None` | Sampling temperature. |
         | `max_tokens` | `int | None` | Max tokens to generate. |