Meet the OpenAI Engineer Leading ChatGPT's Biggest Transformation Yet

Published 11 June 2026 · tech

OpenAI is in the midst of overhauling ChatGPT. The goal is to transform the chatbot’s simple interface into a personalized AI agent that can handle

OpenAI is in the midst of overhauling ChatGPT. The goal is to transform the chatbot’s simple interface into a personalized AI agent that can handle tasks in every facet of your personal and professional life. The company has taken to calling this new product, privately and publicly, a “super app.” The all-in-one platform represents one of the biggest bets OpenAI has ever made, and one engineering leader now holds enormous sway over whether it pays off: Thibault Sottiaux. Last month, Sottiaux was appointed OpenAI’s head of core products, overseeing both ChatGPT and Codex, as well as combining them into the future super app. To make the super app a reality, OpenAI has already shuttered several of its stand-alone products, including its video app Sora and an AI platform for scientists. Many of the executives who led those teams have since left the company, while Sottiaux’s influence inside OpenAI has continued to grow.

He now reports directly to Greg Brockman, who is currently responsible for all of OpenAI’s product teams while Fidji Simo, the company’s CEO of AGI deployment, is on medical leave. Sottiaux was instrumental in helping build out Codex, which has become one of OpenAI’s fastest-growing revenue streams. But leading Codex meant serving developers and working with AI researchers. Now, he’s being tasked with something new: revamping a consumer product with nearly a billion weekly active users. “It’s incredibly exciting and mildly terrifying at the same time,” Sottiaux said in an interview earlier this week. OpenAI has started talking publicly and often about its plans to build a super app, but it’s still unclear what exactly the final product will do. The term “super app” is usually used to describe platforms in Asia like WeChat, which bundle everything from messaging to payments and shopping into a single interface.

But OpenAI is planning something seemingly far more ambitious. Sottiaux says the goal is to build the “world’s best personal agent that deeply understands what humans care about.” Over the next year, he says that ChatGPT will become “delightfully proactive,” and bring people the right information at exactly the right time. OpenAI is hoping that turning ChatGPT into a super app revitalizes the company’s growth as it races toward an IPO and tries to ward off intense competition from Google and Anthropic. OpenAI's bet is that creating one personalized assistant for everything will make it the unequivocal leader in consumer, enterprise, and the overall AI race once again. Engineering Roots Sottiaux grew up in Belgium and studied applied mathematics before joining Google’s London offices in 2015, where he worked on Google Maps before moving over to Google DeepMind. There, he helped build the infrastructure and tools researchers used to build things like AlphaGo, which made history in 2016 when it became the first AI to defeat a human Go champion.