Fix model name from query param in realtime request

litellm/llms/openai/realtime/handler.py

@@ -57,6 +57,19 @@ async def async_realtime(
 
         try:
             ssl_context = get_shared_realtime_ssl_context()
+            # Log a masked request preview consistent with other endpoints.
+            logging_obj.pre_call(
+                input=None,
+                api_key=api_key,
+                additional_args={
+                    "api_base": url,
+                    "headers": {
+                        "Authorization": f"Bearer {api_key}",
+                        "OpenAI-Beta": "realtime=v1",
+                    },
+                    "complete_input_dict": {"query_params": query_params},
+                },
+            )
             async with websockets.connect(  # type: ignore
                 url,
                 additional_headers={

litellm/realtime_api/main.py

@@ -61,6 +61,10 @@ async def _arealtime(
         api_key=api_key,
     )
 
+    # Ensure query params use the normalized provider model (no proxy aliases).
+    if query_params is not None:
+        query_params = {**query_params, "model": model}
+
     litellm_logging_obj.update_environment_variables(
         model=model,
         user=user,

requirements.txt

@@ -62,7 +62,7 @@ aioboto3==13.4.0 # for async sagemaker calls
 tenacity==8.5.0  # for retrying requests, when litellm.num_retries set
 pydantic>=2.11,<3 # proxy + openai req. + mcp
 jsonschema>=4.23.0,<5.0.0 # validating json schema - aligned with openapi-core + mcp
-websockets==13.1.0 # for realtime API
+websockets==15.0.1 # for realtime API
 soundfile==0.12.1 # for audio file processing
 openapi-core==0.21.0 # for OpenAPI compliance tests
 

tests/llm_translation/test_openai_realtime.py

@@ -1,5 +1,7 @@
 import os
 import sys
+from unittest.mock import AsyncMock, MagicMock
+
 import pytest
 
 sys.path.insert(
@@ -315,3 +317,42 @@ def test_realtime_query_params_construction():
     assert query_params2["model"] == model
     assert "intent" in query_params2
     assert query_params2["intent"] == intent
+
+
+@pytest.mark.asyncio
+async def test_realtime_query_params_use_normalized_model_name(monkeypatch):
+    """
+    Ensure query params overwrite model with normalized provider model name.
+    """
+    from litellm.realtime_api import main as realtime_main
+
+    mock_async_realtime = AsyncMock()
+    monkeypatch.setattr(
+        realtime_main,
+        "openai_realtime",
+        MagicMock(async_realtime=mock_async_realtime),
+    )
+
+    def fake_get_llm_provider(model, api_base=None, api_key=None):
+        return ("gpt-4o-realtime-preview-2024-10-01", "openai", None, None)
+
+    monkeypatch.setattr(realtime_main, "get_llm_provider", fake_get_llm_provider)
+
+    query_params: RealtimeQueryParams = {
+        "model": "openai/gpt-4o-realtime-preview-2024-10-01",
+        "intent": "chat",
+    }
+
+    await realtime_main._arealtime(
+        model="openai/gpt-4o-realtime-preview-2024-10-01",
+        websocket=MagicMock(),
+        api_key="sk-test",
+        query_params=query_params,
+        litellm_logging_obj=MagicMock(),
+    )
+
+    called_kwargs = mock_async_realtime.call_args.kwargs
+    assert (
+        called_kwargs["query_params"]["model"] == "gpt-4o-realtime-preview-2024-10-01"
+    )
+    assert called_kwargs["query_params"]["intent"] == "chat"