Kai Chen has been touted as a vital part of the team developing ChatGPT-4.5, and it remains unclear how long it will take to resolve her issue.

Kai Chen, a Canadian AI researcher at OpenAI and a pivotal figure in the development of GPT-4.5, has been denied a U.S. green card after 12 years of living and contributing to the American tech ...

Kai Chen, a Canadian AI researcher working at OpenAI who’s lived in the U.S. for 12 years, was denied a green card, according to Noam Brown, a leading research scientist at the company.