diff --git a/aider/history.py b/aider/history.py
index d758ccbe7..2141a7f81 100644
--- a/aider/history.py
+++ b/aider/history.py
@@ -108,9 +108,7 @@ class ChatSummary:
 
         for model in self.models:
             try:
-                summary = simple_send_with_retries(
-                    model.name, summarize_messages, extra_params=model.extra_params
-                )
+                summary = simple_send_with_retries(model, summarize_messages)
                 if summary is not None:
                     summary = prompts.summary_prefix + summary
                     return [dict(role="user", content=summary)]
diff --git a/aider/repo.py b/aider/repo.py
index 3445a1848..21ee85a3e 100644
--- a/aider/repo.py
+++ b/aider/repo.py
@@ -192,9 +192,7 @@ class GitRepo:
             max_tokens = model.info.get("max_input_tokens") or 0
             if max_tokens and num_tokens > max_tokens:
                 continue
-            commit_message = simple_send_with_retries(
-                model.name, messages, extra_params=model.extra_params
-            )
+            commit_message = simple_send_with_retries(model, messages)
             if commit_message:
                 break
 
diff --git a/aider/sendchat.py b/aider/sendchat.py
index 3d1224bc6..a61ac5549 100644
--- a/aider/sendchat.py
+++ b/aider/sendchat.py
@@ -56,18 +56,19 @@ def send_completion(
     return hash_object, res
 
 
-def simple_send_with_retries(model_name, messages, extra_params=None):
+def simple_send_with_retries(model, messages):
     litellm_ex = LiteLLMExceptions()
 
     retry_delay = 0.125
     while True:
         try:
             kwargs = {
-                "model_name": model_name,
+                "model_name": model.name,
                 "messages": messages,
                 "functions": None,
                 "stream": False,
-                "extra_params": extra_params,
+                "temperature": None if not model.use_temperature else 0,
+                "extra_params": model.extra_params,
             }
 
             _hash, response = send_completion(**kwargs)