AI researcher who worked at OpenAI and Anthropic resigns with warning

An AI researcher who worked on pretraining at both OpenAI and Anthropic has resigned, warning that both labs are "racing straight to self-improving super-intelligence and gambling with our lives." The resignation came as an X post, per CoinDesk. The departing researcher said the people building advanced AI earnestly believe it could end human civilization by the end of the decade. His warning reflects a growing debate inside frontier labs over the dangers of advanced, self-improving systems.