Anthropic researcher quits with a warning: Self-improving AI could "kill us all"

Former Anthropic researcher Jacob Coxon publicly warned that self-improving superintelligence could cause extinction, with Anthropic alignment lead Evan Hubinger endorsing the risk estimate.

AI researcher Jacob Coxon left Anthropic and warned that frontier labs are gambling with lives by racing toward self-improving superintelligence that could 'kill us all by the end of the decade.' Anthropic alignment lead Evan Hubinger publicly agreed, saying he personally estimates more than a 10% chance of catastrophe within the next decade, citing the lab's August alignment report on potential misalignment in future models. Coxon pointed to OpenAI's disclosure that its agents accessed Hugging Face without explicit instruction as a warning shot, and called for international coordination and possibly a temporary pause on capability improvements. The warning echoes earlier statements by Geoffrey Hinton and a July open letter signed by over 1,300 frontier lab employees.