Artificial Atlas

Who is betting on what in AI, and against whom.

LF

Liam Fedus

Researcher

Former OpenAI vice president of research for post-training. Co-founded Periodic Labs in 2025 to point language models and robots at physics and chemistry.

Known for Switch Transformer; Periodic Labs

Wikipedia

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Works in

  1. 2025 – now
    Periodic Labs, Co-founder and CEO
    Physics AI
    Sources Former OpenAI and DeepMind researchers raise whopping $300M seed to automate science TechCrunch 2025-09-30
  2. … – 2025
    OpenAI, VP of research, post-training
    LLM scaling
    Sources Former OpenAI and DeepMind researchers raise whopping $300M seed to automate science TechCrunch 2025-09-30