Thinking Machines Lab is raising $5B led by Accel at a $40B valuation, sources say
Thinking Machines Lab is close to finalizing a $5 billion funding round led by Accel at a $40 billion pre-money valuation, according to multiple unnamed sources familiar with the deal. The investment could close as early as this week. A representative for the startup declined to comment, while Accel did not respond to inquiries.
Key points
- Thinking Machines Lab is reportedly raising $5 billion at a $40 billion pre-money valuation led by Accel.
- The round would triple its previous valuation of more than $10 billion, following a $2 billion seed round last year.
- About a third of the founding team has departed for rivals like OpenAI and Meta, including Barret Zoph, Luke Metz, and Andrew Tulloch.
The deal would more than triple the startup's previous valuation of over $10 billion, following a $2 billion seed round raised last year prior to launching a product. Founded by former OpenAI chief technology officer Mira Murati, the company previously sought funding at a $50 billion valuation last year before talks broke off.
The startup recently updated its model fine-tuning tool, Tinker, reporting performance gains in AI coding. However, Thinking Machines has faced talent departures amid competition from firms like Meta and OpenAI. Roughly one-third of its founding team has left, including Barret Zoph, Luke Metz, and Andrew Tulloch.
The story so far
2 episodes →- Thinking Machines Lab is raising $5B led by Accel at a $40B valuation, sources saythis story
Sources: Thinking Machines Lab is raising $5B led by Accel at a $40B pre-money valuation, more than tripling its valuation from its last public round last year
businessinsider.com · 6 November 2026Loading the full article…
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