fix: scope base_model substitution to azure provider in get_supported_openai_params

cursoragent · yassin-berriai · cursoragent · commit 399de6340d00 · 2026-05-22T12:16:19.000Z
Co-authored-by: Yassin Kortam &lt;yassin@berri.ai&gt;
diff --git a/litellm/litellm_core_utils/get_supported_openai_params.py b/litellm/litellm_core_utils/get_supported_openai_params.py
@@ -52,7 +52,10 @@ def get_supported_openai_params(  # noqa: PLR0915
         provider_config = None
 
     if provider_config and request_type == "chat_completion":
-        return provider_config.get_supported_openai_params(model=base_model or model)
+        effective_model = (
+            base_model if custom_llm_provider == "azure" and base_model else model
+        )
+        return provider_config.get_supported_openai_params(model=effective_model)
 
     if custom_llm_provider == "bedrock":
         return litellm.AmazonConverseConfig().get_supported_openai_params(model=model)
