OpenAI is losing another senior researcher: Jerry Tworek will depart after nearly seven years with the company. He announced the news in a message to his team. Tworek played a pivotal role in developing GPT-4, ChatGPT, and OpenAI's early AI coding models, while consistently pushing the boundaries of what the technology could achieve. Most recently, he led the "reasoning models" team, focused on advancing AI systems capable of complex logical reasoning. He was a core member of the teams behind the o1 and o3 models, which form the foundation of OpenAI’s recent breakthroughs in artificial intelligence.

Tworek stated that he wants to “explore types of research that are difficult for OpenAI to pursue.” This remark appears to subtly critique CEO Sam Altman’s strong focus on product development and revenue generation, a priority that has reportedly caused tension among research staff. At this time, there is no information available about Tworek’s next steps.