Dj StrouseMember of Technical Staff · AnthropicResearcher↗
Researcher · Executive
AnthropicMember of Technical Staff
Schwarzer helped lead the post-training of OpenAI's o1 and o3 reasoning models before joining Anthropic.[1] His earlier research showed how reinforcement-learning agents can learn efficiently from limited experience, exposed fragile evaluation practices and found that periodically resetting parts of an agent can improve learning.
Personal website states that Schwarzer led post-training for o1 and o3 at OpenAI and joined Anthropic in March 2026.
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Reviewed August 10, 2026 · Checked for accuracy and new information.