
Jan LeikeResearcher
Anthropic
Member of Technical Staff
via Anthropic
Researcher · Engineer
Engineer-researcher at Anthropic
Jones built much of Anthropic's early reinforcement-learning and sandboxing infrastructure and led its multimodal effort. He also contributed to automated red-teaming and Constitutional AI, which trains assistants using written principles and AI-generated feedback.
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AnthropicWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 9, 2026