An artificial intelligence researcher who left OpenAI to join Anthropic has decided to leave the industry, accusing both U.S. companies of recklessness and of "playing with our lives" in the race to develop AI models capable of self-improvement.
Jacob Coxon spent the past three years pretraining AI models, first at OpenAI and then, this year, at its fiercest rival Anthropic. Pretraining is the stage where AI models absorb vast quantities of data.
"Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives," Coxon wrote Tuesday on the social media platform X.
Superintelligence is the theoretical point when AI's capabilities exceed human intelligence.
The 27-year-old Briton's warnings add to signs of mounting safety concerns within top AI companies.










