Researcher
Johannes Heidecke
JH
Current role not listed
Heidecke helped test OpenAI models for harmful behavior and led systems designed to reduce those risks before release. He contributed to GPT-4's safety work and the Deep Research product before leaving OpenAI in 2026.
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Background
Previously
2021-2026Head of Safety Systems, 
OpenAI
OpenAIAbout this data
Work and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 18, 2026Citation Trend
1 snapshots43,883citations as of Jul 14, '26
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