What to know

• "Neither company is acting responsibly," he wrote in a series of posts on X/Twitter. "They are racing straight to self-improving superintelligence and gambling with our lives."S1
• Departing Anthropic researcher is not the first to warn AI labs are racing towards catastrophe. But this time, key staff members still at Anthropic publicly endorsed the view—with one putting the chance of AI causing human extinction at more than 10%.S2