From 39762983b10bbe7f2cbcf26384963a66bff24e1f Mon Sep 17 00:00:00 2001
From: Cesar Garcia <128240629+Chesars@users.noreply.github.com>
Date: Wed, 4 Mar 2026 18:51:01 -0300
Subject: [PATCH] Update litellm/proxy/response_api_endpoints/endpoints.py

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
---
 litellm/proxy/response_api_endpoints/endpoints.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/litellm/proxy/response_api_endpoints/endpoints.py b/litellm/proxy/response_api_endpoints/endpoints.py
index abfc25acbc8..f7d2153c5dd 100644
--- a/litellm/proxy/response_api_endpoints/endpoints.py
+++ b/litellm/proxy/response_api_endpoints/endpoints.py
@@ -469,6 +469,7 @@ async def count_response_input_tokens(
 
         if isinstance(input_data, str):
             messages.append({"role": "user", "content": input_data})
+        elif isinstance(input_data, list):
         elif isinstance(input_data, list):
             for item in input_data:
                 if isinstance(item, dict):
@@ -480,6 +481,18 @@ async def count_response_input_tokens(
                             "content": item.get("output", ""),
                             "tool_call_id": item.get("call_id", ""),
                         })
+                    elif item.get("type") == "function_call":
+                        messages.append({
+                            "role": "assistant",
+                            "tool_calls": [{
+                                "id": item.get("call_id", ""),
+                                "type": "function",
+                                "function": {
+                                    "name": item.get("name", ""),
+                                    "arguments": item.get("arguments", ""),
+                                },
+                            }],
+                        })
                     else:
                         messages.append({"role": role, "content": content})
                 elif isinstance(item, str):