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Thinking Machines Lab

Frontier models for multi-step agentic reasoning

AI·Series B·San Francisco, California·thinkingmachines.ai

Thinking Machines Lab Inc. is an American artificial intelligence research and product company founded in February 2025 and based in San Francisco, California. The company was established by a team of experienced professionals from leading AI organizations, including OpenAI, Meta AI, and Mistral AI. Its leadership includes CEO Mira Murati and co-founders John Schulman, Barret Zoph, Lilian Weng, Andrew Tulloch, and Luke Metz. The company focuses on open science, human-AI collaboration, and developing customizable AI systems.

Thinking Machines Lab aims to make AI systems more understandable and adaptable for users. Its research emphasizes multimodal systems, adaptable AI, and frontier capabilities to drive scientific advancements. The company has launched its first product, Tinker, an API and toolkit designed to simplify the fine-tuning of open-source AI models. Additionally, it offers customizable platforms, toolkits, and consulting services to assist organizations in deploying AI solutions.