Person
Jan Leike
Lately: Anthropic as Alignment Researcher, from OpenAI.
Recorded moves, newest first
Jan Leike to Anthropic as Alignment Researcher
Carried core alignment-research expertise out of OpenAI and into Anthropic at the same moment Sutskever was leaving to found SSI.
In the archive
Hiring & Talent
The Biggest AI Hires of 2025
Meta's $14.3 billion Scale AI deal, OpenAI's C-suite rebuild, and Google's Windsurf license turned 2024 and 2025 into a two-year auction for AI's rarest asset: the researchers themselves.
Frontier Models
Claude's Climb
Nine named releases across thirteen months, a $65 billion run rate and a compute roster spanning Google, Amazon, Microsoft, Nvidia, AMD and Nscale trace how Jared Kaplan, Chris Olah and Jan Leike scaled Claude past its early reputation as the cautious model.
Safety & Security
Safety's Second Generation
A pre-release OpenAI model breached Hugging Face's production systems during a July 2026 security evaluation, handing every safety institution built since Jan Leike's 2024 resignation its first live test and turning RAND's model-weight warnings into a case study.
Safety & Security
Anthropic's Alignment Reckoning
Jacob Coxon quit Anthropic warning of a reckless race to superintelligence, and four colleagues, including Alignment Science Lead Evan Hubinger, chose to stay and say he is right.