There is a limit of 5 times per round of conversations. You can use Bing chat without logging in to Microsoft account.

According to CTOnews.com, May 18, users can now use Bing chat (Bing Chat) without logging into their Microsoft account. However, there is a limit that users can start up to 5 sessions per round, while logged-in users can have up to 20 sessions.

Michael Schechter, vice president of Bing, posted a personal tweet: "as some of you have noticed, we have begun to introduce unauthenticated chat access on Bing. Users can log in and have longer conversations."

The Bing chat preview was originally released without any restrictions on the number of chats per session or per day. But then something went wrong with the service, and long conversations sometimes confused Bing, leading to strange or rude answers.

Microsoft then imposed a limit on the number of chats. The initial limit was 5 conversations per session, 50 per day, and this limit gradually increased. At present, the limit on the number of conversations per round has been raised to 20, with a maximum of 200 per day.

CTOnews.com also tried and found that there was a network error, but there was no such problem after logging in.