diff --git a/aider/models/__init__.py b/aider/models/__init__.py
index f299009c6..fa8aa3673 100644
--- a/aider/models/__init__.py
+++ b/aider/models/__init__.py
@@ -1,5 +1,15 @@
 from .model import Model
+from .openai import OpenAIModel
+from .openrouter import OpenRouterModel
 
 GPT4 = Model.create("gpt-4")
 GPT35 = Model.create("gpt-3.5-turbo")
 GPT35_16k = Model.create("gpt-3.5-turbo-16k")
+
+__all__ = [
+    OpenAIModel,
+    OpenRouterModel,
+    GPT4,
+    GPT35,
+    GPT35_16k,
+]