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Jack Clark

Co-founder and head of policy at Anthropic. He previously served as policy director at OpenAI, worked as a technology journalist, and writes the Import AI newsletter.

Researcher2 organizations7 reports

Profile status: updated

Jack Clark portrait
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Contributions are treated as untrusted leads. Public changes happen only after review against public sources.

Trust signals

Profile completeness64%
Public sources2
Official sources1
CountryUnknown
Last reviewedMar 12, 2026
Review outcomeUpdated
Official homepage
updated Unknown location 2 public sources

Latest review note

Added personal website, X handle referenced by official/public profile pages, direct portrait URL, and a short bio.

Public links

website Personal website x X profile

Organizations

core OpenAI core Anthropic

Reports

Large Language Models Language Models are Few-Shot Learners Alignment and RLHF Training a Helpful and Harmless Assistant with Reinforcement Learning from Human Feedback Alignment and RLHF Constitutional AI: Harmlessness from AI Feedback Alignment and RLHF Collective Constitutional AI: Aligning a Language Model with Public Input Alignment and Safety Many-shot Jailbreaking Alignment and Safety Sleeper Agents: Training Deceptive LLMs that Persist Through Safety Training Alignment and Safety Constitutional Classifiers++: Defending against Universal Jailbreaks across Thousands of Hours of Red Teaming

Official and primary sources

https://jack-clark.net/about/ Official source · homepage

Supporting sources

https://x.com/jackclarksf Supporting source · social

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