OpenAI reorganizes research team behind ChatGPT’s personality

OpenAI is restructuring its 14-member Model Behavior team, which shapes AI personalities, by moving it under the larger Post Training group led by Max Schwarzer. The team's founding leader, Joanne Jang, is departing to build OAI Labs, a new research initiative focused on developing innovative AI collaboration interfaces. This reorganization comes amid challenges balancing AI friendliness without sycophancy, following user complaints about GPT-5's colder responses and a lawsuit alleging ChatGPT's role in a teenager's suicide.