Ex-OpenAI CTO Mira Muratiโs new AI venture, Thinking Machines Lab, has gained two new prominent advisors: Bob McGrew, previously OpenAIโs chief research officer, and Alec Radford, a former OpenAI researcher behind many of the companyโs more transformative innovations.
Thinking Machines Labโs website was quietly updated with McGrew and Radfordโs names sometime in March. A spokesperson for the startup didnโt immediately respond to a request for comment.
McGrew joined OpenAI as a member of the technical staff in 2017 and was promoted to VP of research in 2018 before assuming the role of chief research officer. He left in September 2024, saying at the time that he intended to take a โbreak.โ
Radford, who departed OpenAI late last year to pursue independent research after close to a decade at the company, was the lead author of OpenAIโs seminal research paper on generative pre-trained transformers (GPTs). GPTs underpin OpenAIโs most popular products, including the companyโs AI-powered chatbot platform, ChatGPT. Radford also worked on several models in the companyโs GPT series as well as the speech recognition model Whisper and DALL-E, OpenAIโs image-generating model.
Thinking Machines Lab has so far been vague about its research agenda and product roadmap. But in an announcement in February, the startup said that it intends to build tooling to โmake AI work for [peopleโs] unique needs and goalsโ and to create AI systems that are โmore widely understood, customizable, and generally capableโ than those currently available.
Murati is heading up Thinking Machines Lab as CEO. OpenAI co-founder John Schulman is the companyโs chief scientist, and Barret Zoph, who led model post-training at OpenAI, is the CTO.
Murati left OpenAI last October after six years at the company. She came to OpenAI as VP of applied AI and partnerships. After being promoted to CTO in 2022, Murati led the companyโs work onย ChatGPT, DALL-E, and the code-generating systemย Codex, which powered early versions ofย GitHubโs Copilotย programming assistant.
At one point, Murati was said to be in talks to raise over $100 million from unnamed VC firms for Thinking Machines Lab, which counts dozens of employees from top AI labs including OpenAI and Google DeepMind among its ranks.


