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Chris Hallacy

Engineer at OpenAI working on inference infrastructure, product engineering, and prototyping for systems including GPT-4 and DALL-E 2.

Researcher1 organizations3 reports

Profile status: updated

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Trust signals

Profile completeness47%
Public sources2
Official sources1
Last reviewedMar 12, 2026
Official homepage
updated 2 public sources

Public links

website OpenAI Community profile x X profile

Organizations

core OpenAI

Reports

Large Language Models GPT-4 Technical Report Reasoning Models OpenAI o1 System Card Reasoning Models OpenAI o3 and o4-mini System Card

Official and primary sources

https://community.openai.com/u/chrishallacy/summary Official source · homepage

Supporting sources

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

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