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AI Deals › Venture

VentureJul 15 · Stanford HAI · AI Index 2026

Thinking Machines Lab raises a $2B seed round at a $12B valuation

Mira Murati's lab, founded with former OpenAI researchers, closed a $2 billion seed round at a $12 billion valuation in July 2025 — the largest seed round on record, before shipping a product. (Per the Stanford AI Index 2026 timeline.)

Companies mentioned

OpenAI

ChatGPT

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