diff --git a/aider/models.py b/aider/models.py
index 86cd7594e..57d5599c6 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -880,7 +880,12 @@ class Model(ModelSettings):
             self.use_temperature = False
             self.streaming = False
 
-        if "qwen" in model and "coder" in model and ("2.5" in model or "2-5" in model):
+        if (
+            "qwen" in model
+            and "coder" in model
+            and ("2.5" in model or "2-5" in model)
+            and "32b" in model
+        ):
             "openrouter/qwen/qwen-2.5-coder-32b-instruct",
             self.edit_format = "diff"
             self.editor_edit_format = "editor-diff"