added autocomplete for model names

aider/commands.py

@@ -5,6 +5,7 @@ import sys
 from pathlib import Path
 
 import git
+import litellm
 import openai
 from prompt_toolkit.completion import Completion
 
@@ -14,6 +15,8 @@ from aider.utils import is_image_file
 
 from .dump import dump  # noqa: F401
 
+litellm.suppress_debug_info = True
+
 
 class SwitchModel(Exception):
     def __init__(self, model):
@@ -41,6 +44,12 @@ class Commands:
         models.sanity_check_models(self.io, model)
         raise SwitchModel(model)
 
+    def completions_model(self, partial):
+        models = litellm.model_cost.keys()
+        for model in models:
+            if partial.lower() in model.lower():
+                yield Completion(model, start_position=-len(partial))
+
     def cmd_models(self, args):
         "Search the list of available models"