Thinking Machines Lab Secures $2B Seed Round Led by Andreessen Horowitz at $10B Valuation

Thinking Machines Lab, the six-month-old AI company founded by former OpenAI CTO Mira Murati, today closed a $2 billion seed round that places the stealth startup’s valuation at $10 billion. 

Andreessen Horowitz led the financing with participation from Sarah Guo’s Conviction Partners and a group of limited partners. Murati, who oversaw ChatGPT, DALL-E and voice mode at OpenAI and briefly served as its interim chief executive, has recruited co-founder John Schulman and several ex-OpenAI researchers to build new frontier models. 

The company has not disclosed product details, saying only that it is “advancing general-purpose reasoning systems.” Proceeds will fund compute, talent expansion and secure facilities.

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