Thibault Sottiaux (Tibo)
Thibault “Tibo” Sottiaux is a Belgian software engineer and product executive at OpenAI, where he leads the company’s core product and platform organization. He previously led Codex, OpenAI’s AI coding agent, and is commonly known as Tibo.
Background and notable work
The following is based on his English Wikipedia entry and the sources cited there:
- Before joining OpenAI, he spent several years at Google, working on Google Maps and later on machine learning infrastructure for research at Google DeepMind.
- He joined OpenAI in 2024 as an engineering lead for Codex, the agentic coding system the company released in 2025 (see Codex).
- In May 2026, OpenAI consolidated its product organization under president Greg Brockman, merging the ChatGPT, Codex and API teams into a single core product group; Sottiaux was given responsibility for that group, covering the API, agent infrastructure, enterprise products, ChatGPT and Codex.
- Among Codex users, he became known for announcing resets of subscription usage quotas.
Mentioned in the show
Sottiaux does not appear in the episodes quoted on this page; the following are the hosts’ relays and comments. He was mentioned twice in Weekly #005:
- In the cloud computers, your own computers and server management chapter of the Chinese transcript, while discussing OpenAI’s personal agent Dots, Orange says: “因为那个 Tibo，因为 Dots 上了个 Lenny 的播客然后那讲了一下他们的那规划，就说这个 Dots 的未来就是它要管一堆电脑的，比如你整个公司电脑都管起来” (“because of that Tibo — Dots went on Lenny’s podcast and talked about their plans: Dots’ future is managing a bunch of computers, say all of a company’s computers”) (see that line). The interview referred to is presumably Lenny’s Podcast episode “OpenAI’s Head of ChatGPT: We’re entering a new era of AI (again)”, published October 4, 2026; the episode page describes him as leading ChatGPT and Codex and credits him with the Codex, ChatGPT Work and Dots launches.
- In the writing a game with Opus 5.5: code quality and efficiency chapter, Orange says: “包括那个 OpenAI，它那个 Tibo 也预告说，我们后面的模型会逐渐把这个屎山代码给干掉……不仅是做出结果，而是中间过程也牛逼了” (“OpenAI’s Tibo also predicted that their upcoming models will gradually eliminate spaghetti code… not only the result, but the process itself gets good”) (see that line).
These are Orange’s relays on the show. The specific plans about “managing a bunch of computers” should be read from the podcast episode itself (the episode’s full text is behind a paid subscription).
Frequently asked questions
Who is Thibault Sottiaux?
OpenAI’s head of the core product and platform organization, who previously led Codex. He is a Belgian software engineer who earlier worked on Google Maps and at Google DeepMind; see his Wikipedia entry.
Who is “Tibo” at OpenAI?
Tibo is the common nickname of Thibault Sottiaux. At OpenAI he led Codex and, since May 2026, the merged core product group covering ChatGPT, Codex and the API.
Why do Codex users know Tibo?
He is known among Codex users for personally announcing resets of Codex subscription usage quotas; his Wikipedia entry records this.