Mira Murati is one of the most prominent leaders to emerge from the ChatGPT era of AI. She served as chief technology officer of OpenAI, the period in which the company shipped ChatGPT, the GPT-4 family, and DALL-E, before departing in 2024.
In 2025 she founded Thinking Machines Lab. The company’s own site describes it as “an artificial intelligence research and product company” working to make AI systems more widely understood, more customizable to people’s “specific needs and values,” and more capable. The site emphasizes collaborative research, human-AI partnership rather than full autonomy, and “learning by doing” through real-world deployment. In October 2025 the company announced Tinker, an API for fine-tuning language models, and it has previewed work on what it calls “interaction models.”
Note on sourcing: Thinking Machines Lab’s public pages describe the company’s mission and products in primary terms but do not, at the time of verification, name Murati on the site itself. Her role as founder and CEO is well documented in secondary reporting and company filings; this entry anchors on the company’s own materials for the mission and product claims and flags the missing first-party biographical statement rather than padding with journalism.