diff --git a/tests/router_unit_tests/test_router_endpoints.py b/tests/router_unit_tests/test_router_endpoints.py
index a7f6df9ae2b..cc813c5f787 100644
--- a/tests/router_unit_tests/test_router_endpoints.py
+++ b/tests/router_unit_tests/test_router_endpoints.py
@@ -6,7 +6,7 @@ from typing import Optional
 from dotenv import load_dotenv
 from fastapi import Request
 from datetime import datetime
-from unittest.mock import AsyncMock, patch
+from unittest.mock import AsyncMock, patch, MagicMock
 
 sys.path.insert(
     0, os.path.abspath("../..")
@@ -553,9 +553,67 @@ def test_initialize_router_endpoints():
     assert hasattr(router, "aanthropic_messages")
     assert hasattr(router, "aresponses")
     assert hasattr(router, "responses")
-
+    assert hasattr(router, "aget_responses")
+    assert hasattr(router, "adelete_responses")
     # Verify the endpoints are callable
     assert callable(router.amoderation)
     assert callable(router.aanthropic_messages)
     assert callable(router.aresponses)
     assert callable(router.responses)
+    assert callable(router.aget_responses)
+    assert callable(router.adelete_responses)
+
+
+@pytest.mark.asyncio
+async def test_init_responses_api_endpoints():
+    """
+    A simpler test for _init_responses_api_endpoints that focuses on the basic functionality
+    """
+    from litellm.responses.utils import ResponsesAPIRequestUtils
+    # Create a router with a basic model
+    router = Router(
+        model_list=[
+            {
+                "model_name": "test-model",
+                "litellm_params": {
+                    "model": "openai/test-model",
+                    "api_key": "fake-api-key",
+                },
+            }
+        ]
+    )
+    
+    # Just mock the _ageneric_api_call_with_fallbacks method
+    router._ageneric_api_call_with_fallbacks = AsyncMock()
+    
+    # Add a mock implementation of _get_model_id_from_response_id to the Router instance
+    ResponsesAPIRequestUtils.get_model_id_from_response_id = MagicMock(return_value=None)
+    
+    # Call without a response_id (no model extraction should happen)
+    await router._init_responses_api_endpoints(
+        original_function=AsyncMock(),
+        thread_id="thread_xyz"
+    )
+    
+    # Verify _ageneric_api_call_with_fallbacks was called but model wasn't changed
+    first_call_kwargs = router._ageneric_api_call_with_fallbacks.call_args.kwargs
+    assert "model" not in first_call_kwargs
+    assert first_call_kwargs["thread_id"] == "thread_xyz"
+    
+    # Reset the mock
+    router._ageneric_api_call_with_fallbacks.reset_mock()
+    
+    # Change the return value for the second call
+    ResponsesAPIRequestUtils.get_model_id_from_response_id.return_value = "claude-3-sonnet"
+    
+    # Call with a response_id
+    await router._init_responses_api_endpoints(
+        original_function=AsyncMock(),
+        response_id="resp_claude_123"
+    )
+    
+    # Verify model was updated in the kwargs
+    second_call_kwargs = router._ageneric_api_call_with_fallbacks.call_args.kwargs
+    assert second_call_kwargs["model"] == "claude-3-sonnet"
+    assert second_call_kwargs["response_id"] == "resp_claude_123"
+