Hi Ji, Fujiao
Sorry for the Trouble.
I see few products groups ticket tagged for East Us 2 regions. So would suggest creating deployment in other available regions mentioned here so that we can load balance traffic whenever there is a regional outage.
Have tested without data for GPT 4.1 in Sweden Central (Global Standard) region, it works without any issue
Please share region and deployment type of GPT 4.1 model along sample inputs to replicate the issue.
Case status at Customer on May 5th- Worked in other regions at customer with increased quota
Thank you.