diff --git a/aider/website/docs/llms/xai.md b/aider/website/docs/llms/xai.md
index a1fd48d0a..b2531e64c 100644
--- a/aider/website/docs/llms/xai.md
+++ b/aider/website/docs/llms/xai.md
@@ -15,10 +15,15 @@ python -m pip install -U aider-chat
 export XAI_API_KEY=<key> # Mac/Linux
 setx   XAI_API_KEY <key> # Windows, restart shell after setx
 
-aider --model xai/grok-beta
+# Grok 3
+aider --model xai/grok-3-beta
+
+# Grok 3 fast is faster and more expensive
+aider --model xai/grok-3-fast-beta
 
 # List models available from xAI
 aider --list-models xai/
 ```
 
 
+