Personnel·tUKzAfTQHc·Record·Organization

Personnel: Wojciech Zaremba at OpenAI (Co-founder, Head of Codex)

Verdictpartial85%

1 check · 4/9/2026

The source confirms Wojciech Zaremba is a co-founder of OpenAI and that he worked on Codex. However, the source does not explicitly state that he was 'Head of Codex' — it only says he 'began leading teams working on' Codex (among other projects like GPT models and GitHub Copilot). The startDate of 2015-12 is partially confirmed: the source states 'In 2015, Zaremba became one of the co-founders of OpenAI' but does not specify December. The role description is incomplete/imprecise rather than contradicted.

Our claim

entire record

Person: Wojciech Zaremba
Role: Co-founder, Head of Codex
Role Type: career
Start Date: December 2015
Is Founder: Yes
Source: https://en.wikipedia.org/wiki/Wojciech_Zaremba
Notes: Co-founded OpenAI; leads the Codex/coding intelligence team

Source evidence

1 src · 1 check

en.wikipedia.org/wiki/Wojciech_Zaremba

partial85%Haiku 4.5 · 4/9/2026

NoteThe source confirms Wojciech Zaremba is a co-founder of OpenAI and that he worked on Codex. However, the source does not explicitly state that he was 'Head of Codex' — it only says he 'began leading teams working on' Codex (among other projects like GPT models and GitHub Copilot). The startDate of 2015-12 is partially confirmed: the source states 'In 2015, Zaremba became one of the co-founders of OpenAI' but does not specify December. The role description is incomplete/imprecise rather than contradicted.

Case № tUKzAfTQHcFiled 4/9/2026Confidence 85%