diff --git a/tests/llm_translation/test_cohere.py b/tests/llm_translation/test_cohere.py
index 124a5c8788..6b4d3a2045 100644
--- a/tests/llm_translation/test_cohere.py
+++ b/tests/llm_translation/test_cohere.py
@@ -17,6 +17,9 @@ import pytest
 
 import litellm
 from litellm import RateLimitError, Timeout, completion, completion_cost, embedding
+from unittest.mock import AsyncMock, patch
+from litellm import RateLimitError, Timeout, completion, completion_cost, embedding
+from litellm.llms.custom_httpx.http_handler import AsyncHTTPHandler
 
 litellm.num_retries = 3
 
@@ -224,3 +227,57 @@ async def test_chat_completion_cohere_stream(sync_mode):
         pass
     except Exception as e:
         pytest.fail(f"Error occurred: {e}")
+
+
+@pytest.mark.asyncio
+async def test_cohere_request_body_with_allowed_params():
+    """
+    Test to validate that when allowed_openai_params is provided, the request body contains
+    the correct response_format and reasoning_effort values.
+    """
+    # Define test parameters
+    test_response_format = {"type": "json"}
+    test_reasoning_effort = "low"
+    test_tools = [{
+        "type": "function", 
+        "function": {
+            "name": "get_current_time", 
+            "description": "Get the current time in a given location.", 
+            "parameters": {
+                "type": "object", 
+                "properties": {
+                    "location": {"type": "string", "description": "The city name, e.g. San Francisco"}
+                },
+                "required": ["location"]
+            }
+        }
+    }]
+
+    client = AsyncHTTPHandler()
+
+    # Mock the post method
+    with patch.object(client, "post", new=AsyncMock()) as mock_post:
+        try:
+            await litellm.acompletion(
+                model="cohere/command",
+                messages=[{"content": "what llm are you", "role": "user"}],
+                allowed_openai_params=["tools", "response_format", "reasoning_effort"],
+                response_format=test_response_format,
+                reasoning_effort=test_reasoning_effort,
+                tools=test_tools,
+                client=client
+            )
+        except Exception:
+            pass  # We only care about the request body validation
+
+        # Verify the API call was made
+        mock_post.assert_called_once()
+        
+        # Get and parse the request body
+        request_data = json.loads(mock_post.call_args.kwargs["data"])
+        print(f"request_data: {request_data}")
+        
+        # Validate request contains our specified parameters
+        assert "allowed_openai_params" not in request_data
+        assert request_data["response_format"] == test_response_format
+        assert request_data["reasoning_effort"] == test_reasoning_effort