AI researcher Jacob Coxon says he quit Anthropic after four months, two months before his equity would have vested; he still has equity in prior employer OpenAI (Madison Mills/Axios)

Madison Mills / Axios: AI researcher Jacob Coxon says he quit Anthropic after four months, two months before his equity would have vested; he still has equity in prior employer OpenAI — Anthropic researcher Jacob Coxon quit his job due to concerns about the safety of AI two months before his equity would have vested, he told Axios.