Abstract the default model name so it applies to scripting #537

aider/coders/base_coder.py

@@ -69,7 +69,7 @@ class Coder:
         from . import EditBlockCoder, UnifiedDiffCoder, WholeFileCoder
 
         if not main_model:
-            main_model = models.GPT4
+            main_model = models.Model.create(models.DEFAULT_MODEL_NAME)
 
         if not skip_model_availabily_check and not main_model.always_available:
             if not check_model_availability(io, client, main_model):

aider/main.py

@@ -159,7 +159,7 @@ def main(argv=None, input=None, output=None, force_git_root=None):
         env_var="OPENAI_API_KEY",
         help="Specify the OpenAI API key",
     )
-    default_model = "gpt-4-1106-preview"
+    default_model = models.DEFAULT_MODEL_NAME
     core_group.add_argument(
         "--model",
         metavar="MODEL",

aider/models/__init__.py

@@ -6,6 +6,8 @@ GPT4 = Model.create("gpt-4")
 GPT35 = Model.create("gpt-3.5-turbo")
 GPT35_0125 = Model.create("gpt-3.5-turbo-0125")
 
+DEFAULT_MODEL_NAME = "gpt-4-1106-preview"
+
 __all__ = [
     OpenAIModel,
     OpenRouterModel,

docs/faq.md

@@ -258,6 +258,7 @@ User `aider --help` to see all the command line options, but these are useful fo
 You can also script aider from python:
 
 ```python
+import os
 import openai
 from aider.coders import Coder