OpenAI Folds Model Behavior Team into Post-Training Group as Founder Joanne Jang Departs
OpenAI has folded its 14-person Model Behavior team into the larger Post Training group, moving oversight to Max Schwarzer. Founder Joanne Jang is leaving to launch OAI Labs to prototype new AI interfaces. The Model Behavior researchers — who shape ChatGPT’s “personality” and battle sycophancy and bias — will now work closer to core model development after user backlash to GPT-5’s tone and safety scrutiny.