diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 8650e515c..366954ad9 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -1124,7 +1124,6 @@ class Coder:
         exhausted = False
         interrupted = False
         try:
-            # ai: replicate this try/except retry loop...
             while True:
                 try:
                     yield from self.send(messages, functions=self.functions)
@@ -1137,7 +1136,6 @@ class Coder:
                     self.io.tool_output(f"Retrying in {retry_delay:.1f} seconds...")
                     time.sleep(retry_delay)
                     continue
-                # ai: ... down to here
                 except KeyboardInterrupt:
                     interrupted = True
                     break
diff --git a/aider/sendchat.py b/aider/sendchat.py
index 2c796e54a..86a065407 100644
--- a/aider/sendchat.py
+++ b/aider/sendchat.py
@@ -1,5 +1,6 @@
 import hashlib
 import json
+import time
 
 import backoff
 
@@ -102,18 +103,27 @@ def send_completion(
     return hash_object, res
 
 
-# ai: in this function!
 def simple_send_with_retries(model_name, messages, extra_params=None):
-    try:
-        kwargs = {
-            "model_name": model_name,
-            "messages": messages,
-            "functions": None,
-            "stream": False,
-            "extra_params": extra_params,
-        }
+    retry_delay = 0.125
+    while True:
+        try:
+            kwargs = {
+                "model_name": model_name,
+                "messages": messages,
+                "functions": None,
+                "stream": False,
+                "extra_params": extra_params,
+            }
 
-        _hash, response = send_completion(**kwargs)
-        return response.choices[0].message.content
-    except AttributeError:
-        return
+            _hash, response = send_completion(**kwargs)
+            return response.choices[0].message.content
+        except retry_exceptions() as err:
+            print(str(err))
+            retry_delay *= 2
+            if retry_delay > RETRY_TIMEOUT:
+                break
+            print(f"Retrying in {retry_delay:.1f} seconds...")
+            time.sleep(retry_delay)
+            continue
+        except AttributeError:
+            return