
Christopher BernerResearcher
OpenAI
Distinguished Engineer
via OpenAI
Researcher · Engineer

Member of Technical Staff at OpenAI
Gray develops software that helps large neural networks run efficiently on graphics processors. He created tools that skip blocks of unnecessary calculations, making some models dramatically faster, and contributed to the computing infrastructure behind OpenAI Five, GPT-4 and GPT-4o.
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Last editorial review: August 24, 2026