← Back to PeopleEngineerGeoff PeningtonOpenAI Staff at OpenAI@quantum_geoffGeoff Penington is a staff member at OpenAI.1Mentions1Articles1OutletsCompanies CoveredAnthropic1Google DeepMind1Meta1OpenAI1ArticlesMost recent firstMentioned InReferenced in coverageFrontier Lab Employee Open Letter Calls For Being Able to Pace the FrontierThe ZvicautiousJul 30, 2026“OpenAI employee who signed the letter and discussed challenges of coordinating a slowdown amid competitive pressures.”