OpenAI & Anthropic researchers call for slower AI development amid ‘extinction’ concerns. Anthropic researcher Jacob Coxon sparked the concerns by resigning, accusing Anthropic and OpenAI of “gambling with our lives” and saying AI builders believe the technology could “kill us all by the end of the decade.” (https://www.cnbc.com/2026/09/10/openai-anthropic-ai-safety-slowdown-extinction.html)