From 0a579664657e74560accc57e164327840c5d58ee Mon Sep 17 00:00:00 2001
From: Xinmin Zeng <135568692+fancyboi999@users.noreply.github.com>
Date: Wed, 4 Nov 2026 10:27:43 +0800
Subject: [PATCH] fix(proxy): echo the path model on non-streaming azure-style
 and engines routes

---
 litellm/proxy/common_request_processing.py    |  2 +-
 .../proxy/test_common_request_processing.py   | 21 ++++++++++++++-----
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/litellm/proxy/common_request_processing.py b/litellm/proxy/common_request_processing.py
index 5ae6c628324..8e5473c837f 100644
--- a/litellm/proxy/common_request_processing.py
+++ b/litellm/proxy/common_request_processing.py
@@ -3064,7 +3064,7 @@ class ProxyBaseLLMRequestProcessing:
         """
         Common request processing logic for both chat completions and responses API endpoints
         """
-        client_model: Final = get_client_requested_model(request) or self.data.get("model")
+        client_model: Final = get_client_requested_model(request) or self.data.get("model") or model
         requested_model_from_client: Final[str | None] = client_model if isinstance(client_model, str) else None
         self._debug_log_request_payload()
 
diff --git a/tests/unit/proxy/test_common_request_processing.py b/tests/unit/proxy/test_common_request_processing.py
index 13f6f840cb7..ab78388c2dc 100644
--- a/tests/unit/proxy/test_common_request_processing.py
+++ b/tests/unit/proxy/test_common_request_processing.py
@@ -5551,12 +5551,20 @@ class TestDisconnectGatherCleanup:
 
 
 @pytest.mark.asyncio
-@pytest.mark.parametrize("client_model, expected", [("AgentX-LLM", "AgentX-LLM"), (None, "gpt-mini")])
+@pytest.mark.parametrize(
+    "client_model, body_model, endpoint_model, expected",
+    [
+        ("AgentX-LLM", "gpt-mini", None, "AgentX-LLM"),
+        (None, "gpt-mini", None, "gpt-mini"),
+        (None, None, "team-model", "team-model"),
+    ],
+)
 async def test_response_model_echoes_the_name_the_client_sent_before_auth_rewrote_it(
-    monkeypatch, client_model, expected
+    monkeypatch, client_model, body_model, endpoint_model, expected
 ):
     """LIT-3054: auth resolves router_settings.model_group_alias in the body, so the alias the
-    client sent only survives in the request scope. The response must still echo it."""
+    client sent only survives in the request scope. The response must still echo it. Azure-style
+    routes carry the name in the path alone, and the response must echo that too (#49932)."""
     import litellm.proxy.common_request_processing as cpr
 
     async def llm():
@@ -5575,9 +5583,11 @@ async def test_response_model_echoes_the_name_the_client_sent_before_auth_rewrot
     proxy_logging._callback_capabilities_cache = {}
     monkeypatch.setattr(cpr, "route_request", fake_route_request)
 
-    processor = ProxyBaseLLMRequestProcessing(data={"model": "gpt-mini", "messages": []})
+    processor = ProxyBaseLLMRequestProcessing(data={"messages": [], **({"model": body_model} if body_model else {})})
     monkeypatch.setattr(
-        processor, "common_processing_pre_call_logic", AsyncMock(return_value=({"model": "gpt-mini"}, logging_obj))
+        processor,
+        "common_processing_pre_call_logic",
+        AsyncMock(return_value=({"model": body_model or endpoint_model}, logging_obj)),
     )
     monkeypatch.setattr(processor, "_has_post_call_guardrails", MagicMock(return_value=False))
     scope = {"type": "http", "method": "POST", "path": "/v1/chat/completions", "headers": [], "query_string": b""}
@@ -5592,6 +5602,7 @@ async def test_response_model_echoes_the_name_the_client_sent_before_auth_rewrot
         proxy_config=MagicMock(spec=ProxyConfig),
         route_type="acompletion",
         version=None,
+        model=endpoint_model,
     )
 
     assert response.model == expected