OpenAI announced that Andrea Vallone, head of its model policy safety research team, will leave the company later this year. The departure was confirmed by spokesperson Kayla Wood, and Vallone’s team will temporarily report to Johannes Heidecke, head of safety systems. Vallone’s exit comes as OpenAI faces multiple lawsuits alleging that ChatGPT contributed to users' mental‑health crises. The company’s model policy team has been pivotal in research on how the chatbot should respond to distressed users, publishing an October report that cited hundreds of thousands of weekly crisis indicators and a reduction in undesirable responses following a GPT‑5 update. Leia mais →