diff --git a/docs/custom-providers.md b/docs/custom-providers.md
index 9f43a77..0ec6661 100644
--- a/docs/custom-providers.md
+++ b/docs/custom-providers.md
@@ -33,7 +33,7 @@ Edit `~/.zeroclaw/config.toml`:
 ```toml
 api_key = "your-api-key"
 default_provider = "anthropic-custom:https://api.example.com"
-default_model = "claude-sonnet-4"
+default_model = "claude-sonnet-4-6"
 ```
 
 ### Environment Variables