MURATI'S AI LAB SEEKS $1B AT LOWER VALUATION

AI DESK■ 1 MIN READ

THU, SEP 3, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Thinking Machines Lab, founded by former OpenAI CTO Mira Murati, is raising at least $1 billion at a $40 billion+ pre-money valuation—down from the $50 billion+ it targeted last year.

The funding round represents a significant markdown for the AI startup, which Murati launched after departing OpenAI in 2024. The valuation decline reflects broader headwinds in the AI funding market, where investor enthusiasm has cooled following a record 2023. Thinking Machines Lab has positioned itself as a research-focused AI developer, competing in a crowded field of startups chasing large language model advancement. The company's ability to attract $1 billion-plus speaks to investor confidence in Murati's track record, despite the valuation reset. The funding talks underscore shifting market dynamics for AI companies. Earlier-stage startups and those without clear revenue paths face tighter valuations, while established players continue to command premium pricing. Murati's previous role as OpenAI's technical leader lends credibility to the venture, but the valuation gap shows even prominent founders cannot escape market realities.

■ SOURCES

► Techmeme

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MURATI'S AI LAB SEEKS $1B AT LOWER VALUATION

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