OpenAI Researcher Max Schwarzer Joins Anthropic

On March 4, Max Schwarzer, a core researcher of OpenAI's inference model, announced his departure from the company via the X platform. According to BlockBeats, Schwarzer will be joining Anthropic. Schwarzer was an early participant in the o1 inference model and led the post-training of both o1 and o3 models. Over the past year, he has headed the post-training team, delivering GPT-5, 5.1, 5.2, and 5.3-Codex. Upon joining Anthropic, Max Schwarzer will focus on reinforcement learning research.