diff --git a/aider/models.py b/aider/models.py
index 67f0458ef..40f662ba6 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -8,6 +8,7 @@ import platform
 import sys
 import time
 from dataclasses import dataclass, fields
+from datetime import datetime
 from pathlib import Path
 from typing import Optional, Union
 
@@ -873,6 +874,24 @@ class Model(ModelSettings):
     def is_ollama(self):
         return self.name.startswith("ollama/") or self.name.startswith("ollama_chat/")
 
+    def github_copilot_token_to_open_ai_key(self):
+        # check to see if there's an openai api key
+        # If so, check to see if it's expire
+        openai_api_key = 'OPENAI_API_KEY'
+
+        if openai_api_key not in os.environ or (
+            int(dict(x.split("=") for x in os.environ[openai_api_key].split(";"))['exp']) < int(datetime.now().timestamp())
+        ):
+            import requests
+            headers = {
+                'Authorization': f"Bearer {os.environ['GITHUB_COPILOT_TOKEN']}",
+                'Editor-Version': self.extra_params['extra_headers']['Editor-Version'],
+                'Copilot-Integration-Id': self.extra_params['extra_headers']['Copilot-Integration-Id'],
+                'Content-Type': 'application/json',
+            }
+            res = requests.get("https://api.github.com/copilot_internal/v2/token", headers=headers)
+            os.environ[openai_api_key] = res.json()['token']
+
     def send_completion(self, messages, functions, stream, temperature=None):
         if os.environ.get("AIDER_SANITY_CHECK_TURNS"):
             sanity_check_messages(messages)
@@ -914,6 +933,10 @@ class Model(ModelSettings):
             dump(kwargs)
         kwargs["messages"] = messages
 
+        # Are we using github copilot?
+        if 'GITHUB_COPILOT_TOKEN' in os.environ:
+            self.github_copilot_token_to_open_ai_key()
+
         res = litellm.completion(**kwargs)
         return hash_object, res