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Crystal ball: What's more concerning than the prospect of AI bringing about the end of humanity? It's the people working at these companies making the same warning. Hours after a former OpenAI employee quit Anthropic and said, "No other human activity poses this level of danger," a colleague said there is more than a 10% chance that artificial intelligence could kill all humans within the next decade.

Jacob Coxon announced on X yesterday that he had resigned from Anthropic, having spent the last three years doing pretraining research at both OpenAI and Dario Amodei's company. He was a member of AI's technical staff from July 2023 until he moved to Anthropic in July 2026.

"Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives," he wrote.