## OpenAI Researcher’s Green Card Denial Sparks Concerns Over US AI Leadership
A Canadian AI researcher at OpenAI, who contributed to the development of the company’s cutting-edge GPT-4.5 model, has been denied a U.S. green card, prompting concerns about the country’s ability to retain top-tier talent in the rapidly evolving AI landscape.
Noam Brown, a research scientist at OpenAI, revealed the situation on X, stating that Kai Chen, who has resided and worked in the U.S. for 12 years, was informed of the denial and must leave the country imminently. Brown expressed his dismay, writing, “It’s deeply concerning that one of the best AI researchers I’ve worked with […] was denied a U.S. green card. A Canadian who’s lived and contributed here for 12 years now has to leave. We’re risking America’s AI leadership when we turn away talent like this.”
Dylan Hunn, another OpenAI employee, echoed this sentiment, emphasizing Chen’s “crucial” role in the creation of GPT-4.5, a key component of OpenAI’s product offerings.
While the specific reasons for the green card denial remain unclear, this incident comes amidst growing scrutiny of foreign workers in the U.S. Under the Trump administration, immigration policies have become increasingly strict. Chen plans to continue his work remotely from Vancouver, Canada, while hoping the situation can be resolved.
OpenAI CEO Sam Altman has previously voiced his concerns about the challenges faced by high-skilled immigrants seeking to work in the U.S. In a July 2023 post on X, Altman advocated for policy changes to streamline the immigration process for talented individuals, arguing that attracting and retaining global talent is crucial for maintaining America’s competitive edge.
The denial of Chen’s green card is not an isolated incident. Over the past few months, over 1,700 international students, including AI researchers, have had their visa statuses challenged. While some cases involve accusations of supporting extremist groups or engaging in antisemitic activities, others have been targeted for minor infractions, highlighting the increasingly stringent immigration climate. Additionally, the Trump administration has reportedly suspended processing green card requests for refugees and asylum seekers and is taking a hardline approach to green card holders deemed “national security” threats.
AI labs like OpenAI rely heavily on foreign talent. OpenAI filed more than 80 applications for H1-B visas last year alone and has sponsored more than 100 visas since 2022, according to an OpenAI contractor. These H1-B visas allow U.S. companies to temporarily employ foreign workers in specialized fields. However, recent trends indicate increased scrutiny of H-1B visa applications, with immigration officials issuing more “requests for evidence,” potentially leading to a higher rate of denials.
Immigrants have played a major role in the growth of the U.S. AI industry. A study from Georgetown’s Center for Security and Emerging Technology found that 66% of the 50 “most promising” U.S.-based AI startups on Forbes’ 2019 “AI 50” list had an immigrant founder. Furthermore, a 2023 analysis by the National Foundation for American Policy revealed that 70% of full-time graduate students in fields related to AI are international students.
Notable examples include Ashish Vaswani, co-creator of the transformer, the foundational AI model architecture, and Wojciech Zaremba, an OpenAI co-founder who earned his doctorate in AI from NYU on a student visa.
The increasingly challenging immigration policies are contributing to a growing sentiment among researchers to consider opportunities outside the U.S. A *Nature* poll revealed that 75% of over 1,600 scientists were considering leaving the country for jobs abroad, posing a potential threat to the U.S.’s position as a leader in AI innovation.