diff --git a/aider/website/_posts/2025-01-24-r1-sonnet.md b/aider/website/_posts/2025-01-24-r1-sonnet.md
index 5042ce994..909f69c23 100644
--- a/aider/website/_posts/2025-01-24-r1-sonnet.md
+++ b/aider/website/_posts/2025-01-24-r1-sonnet.md
@@ -28,6 +28,7 @@ Using various other models as editor didn't seem to improve o1 or R1 versus thei
 This is in contrast to the first wave of thinking models like o1-preview and o1-mini,
 which improved when paired with many different editor models.
 
+o1 was set with reasoning effort high for these tests.
 
 ## Try it