Researcher quits Anthropic after 3 years in pretraining at OpenAI and Anthropic, blasting both labs

peterwildeford · x · 2026-09-09

A researcher who spent the last three years doing pretraining work at both OpenAI and Anthropic has resigned, saying neither company is acting responsibly and both are 'racing straight to self-improving superintelligence and gambling with our lives.' More reflections promised to follow—the latest in a string of insider departures criticizing frontier-lab safety culture.

Related event: Anthropic Researcher Jacob Coxon Quits AI Over Self-Improvement Race Fears(9 posts)→

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