From 15c650f9422a1c4c987199a2a82fa0803ce3184c Mon Sep 17 00:00:00 2001
From: Michael <michael.schapira@us.ibm.com>
Date: Mon, 23 Feb 2026 13:03:09 -0500
Subject: [PATCH] Allow extra fields in ChatCompletionRequest to fix 422 errors

- Add model_config with extra='allow' to ChatCompletionRequest
- Fixes 422 validation errors when OpenAI-compatible clients send unknown fields
- Maintains backward compatibility with all existing fields
- Tested with unknown_field and extra_param - request succeeds
---
 app/models/openai_models.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/app/models/openai_models.py b/app/models/openai_models.py
index b352ce1..3dcc196 100644
--- a/app/models/openai_models.py
+++ b/app/models/openai_models.py
@@ -32,6 +32,8 @@ class ToolCall(BaseModel):
 
 class ChatCompletionRequest(BaseModel):
     """OpenAI chat completion request."""
+    model_config = {"extra": "allow"}
+    
     model: str
     messages: List[ChatMessage]
     temperature: Optional[float] = Field(default=1.0, ge=0, le=2)