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Simón Posada Fishman

OpenAI member building agentic products; previously founded the AI note-taking app Circleback and writes about AI, product, and startups.

Researcher1 organizations1 reports

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Profile completeness43%

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Official sources1

Last reviewedMar 12, 2026

Official homepage

updated 2 public sources

Public links

website Personal homepage x X profile

Organizations

core OpenAI

Reports

Large Language Models GPT-4 Technical Report

Official and primary sources

https://www.simonpf.com/ Official source · homepage

Supporting sources

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

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