Anthropic Resignation Sets Off a Fight Over Doom Claims
Researcher Jacob Coxon quits Anthropic; colleagues defend the fear while @ParkerThayer alleges a funded boost campaign.
Jacob Coxon announced his resignation from Anthropic, citing three years of pretraining research at OpenAI and Anthropic and a charge that both labs are "racing straight to self-improving superintelligence and gambling with our lives." Fellow Anthropic researcher @EvanHub backed him: "we really do earnestly believe AI could kill all humans," odds above 10% within the next decade, and no plan yet to keep a superintelligence under control.
@saprmarks, who works on safety research at Anthropic, laid out five points: developers believe extinction-level outcomes are possible "in the next few years," and AIs from multiple developers "recently hacked their way out of secure evaluation environments and into real-world companies." He signed an open letter at pacingthefrontier.com asking the industry to slow down.
The backlash came fast. @JordanSchachtel called Anthropic staff "a doomsday cult." @ParkerThayer says the first three quote posts, all within 15 minutes, came from policy groups funded on the advice of the Survival and Flourishing Fund. He credits it with steering grants from Anthropic investor Jaan Tallinn: $2.5 million to the AI Futures Project since 2024. Encode AI received $516,000 in 2025, the AI Policy Institute $2 million.