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    • US Government Blocks Anthropic's Advanced AI Models

    By Any June 19, 2026
    The U.S. government has ordered Anthropic to halt access to its most advanced AI models, Fable 5 and Mythos 5, for foreign nationals, citing national security concerns. In response, Anthropic has suspended access for all users globally, leading to discussions with officials to resolve the issue.
    US Government Blocks Anthropic's Advanced AI Models

    US Government Blocks Anthropic’s Advanced AI Models The U.S. government’s move to restrict Anthropic’s most advanced AI models has landed just as rival OpenAI is rapidly consolidating top technical and policy talent, underscoring how national security and a fierce talent war are reshaping frontier AI.

    Early June: Google’s long bet on Shazeer

    For two decades, Noam Shazeer was a core figure in Google’s AI work, co‑authoring the 2017 “Attention Is All You Need” paper that underpins today’s large language models. After leaving to co‑found Character.AI in 2021, Google reportedly paid $2.7 billion in 2024 to bring Shazeer and his team back and secure non‑exclusive access to the startup’s technology.

    June 18: Shazeer exits Google for OpenAI

    On June 18, multiple outlets confirmed that Shazeer, co‑lead of Google’s Gemini project, is leaving for OpenAI in what Business Insider called “the latest AI talent war move.” Axios framed the jump as evidence of “the limits of acqui‑hires,” noting that Google’s $2.7 billion deal could not prevent a star researcher from walking once retention periods ended.

    The Verge and TechCrunch both highlighted that Shazeer is seen as one of the foundational minds behind modern generative AI, and that his hiring is “a major win for OpenAI in the AI talent wars” as it races Anthropic ahead of both firms’ anticipated IPOs. OpenAI CEO Sam Altman signaled his enthusiasm on X, joking that “Noams are so good at AI” and welcoming Shazeer to the company.

    Parallel move: Dean Ball to lead “Strategic Futures”

    The same day, Axios reported that Dean Ball, a former senior policy adviser on AI at the Trump White House, will join OpenAI to lead a new Strategic Futures team focused on “frontier AI policy and internal governance.” Ball called frontier labs “a new kind of institution under the sun” and said the role is a chance “to shape that still‑nascent institution.”

    OpenAI chief strategy officer Jason Kwon said Ball has spent “a lot of time thinking seriously about the biggest questions frontier labs need to get right: risk, governance, frontier policy issues, and what comes next,” adding that internal disagreement will help “pressure‑test and shape” the company’s thinking.

    Bigger picture: Anthropic squeeze, OpenAI surge

    While U.S. officials have ordered Anthropic to halt foreign access to its Fable 5 and Mythos 5 models on security grounds (prompting Anthropic to suspend them globally), OpenAI is tightening its grip on both scientific leadership and Washington‑facing policy expertise. Together, the moves illustrate diverging responses to government pressure: Anthropic pulled back access to comply and negotiate, while OpenAI is staffing up to shape the regulatory environment from within.

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