diff --git a/api/.env.example b/api/.env.example
index d665457b1e..4a9d404f10 100644
--- a/api/.env.example
+++ b/api/.env.example
@@ -42,6 +42,7 @@ OPENAI_MODELS=gpt-3.5-turbo,gpt-3.5-turbo-0301,text-davinci-003,gpt-4
 # Also used for Sydney and jailbreak
 
 # BingAI Tokens: the "_U" cookies value from bing.com 
+# Set to "user_provided" to allow user provided token.
 # Leave it blank to disable this endpoint. 
 BINGAI_TOKEN=
 
@@ -56,7 +57,8 @@ BINGAI_TOKEN=
 
 # ChatGPT Browser Client (free but use at your own risk) 
 # Access token from https://chat.openai.com/api/auth/session 
-# Exposes your access token to `CHATGPT_REVERSE_PROXY` 
+# Exposes your access token to `CHATGPT_REVERSE_PROXY`
+# Set to "user_provided" to allow user provided token.
 # Leave it blank to disable this endpoint 
 CHATGPT_TOKEN=