diff --git a/docker/.env.example b/docker/.env.example
index 53cdba9d40..10a3ec9cca 100644
--- a/docker/.env.example
+++ b/docker/.env.example
@@ -34,7 +34,8 @@ USER_UUID=
 POSTHOG_API_KEY=phc_nhF32aj4xHXOZb0oqr2cn4Oy9uiWzz6CCP4KZmRq9aE
 POSTHOG_HOST=https://app.posthog.com
 TELEMETRY_ENABLED=true
-# this is for telemetry to know the model, i think ai-service might be able to provide a endpoint to get the information
+# this is for telemetry to know the model, i think ai-service might be able to provide a endpoint to get the information.
+# AI model configurations should be set in config.yaml, not in .env. See README.md for more details.
 GENERATION_MODEL=gpt-4o-mini
 LANGFUSE_SECRET_KEY=
 LANGFUSE_PUBLIC_KEY=