From Dealroom · · 50s
Thinking Machines Lab Raises $5B at $40B Valuation
AI startup Thinking Machines Lab nears $5 billion funding round led by Accel.
In brief
AI startup Thinking Machines Lab nears $5 billion funding round led by Accel. Thinking Machines Lab, an AI startup founded by former OpenAI chief technology officer Mira Murati, is raising $5 billion at a $40 billion pre-money valuation, led by investment firm Accel. Originally reported by Dealroom.
Quick answers
- What's the deal?
- Thinking Machines Lab, the San Francisco AI startup founded by former OpenAI chief technology officer Mira Murati, is reportedly raising $5 billion at a $40 billion pre-money valuation.
- Why now?
- The raise more than triples the $12 billion valuation from the company's $2 billion seed in July 2025 after co-founders left for rivals like Meta and OpenAI.
- What's the endgame?
- The company sells Tinker, a system for fine-tuning large language models on their own data, with Inkling and a new version of Tinker released in July and November.
- What is the key takeaway from Thinking Machines Lab Raises $5B at $40B Valuation?
- Thinking Machines Lab, an AI startup founded by former OpenAI chief technology officer Mira Murati, is raising $5 billion at a $40 billion pre-money valuation, led by investment firm Accel.
What's the deal?
Thinking Machines Lab, the San Francisco AI startup founded by former OpenAI chief technology officer Mira Murati, is reportedly raising $5 billion at a $40 billion pre-money valuation.
Why now?
The raise more than triples the $12 billion valuation from the company's $2 billion seed in July 2025 after co-founders left for rivals like Meta and OpenAI.
What's the endgame?
The company sells Tinker, a system for fine-tuning large language models on their own data, with Inkling and a new version of Tinker released in July and November.
The headline
Thinking Machines Lab, an AI startup founded by former OpenAI chief technology officer Mira Murati, is raising $5 billion at a $40 billion pre-money valuation, led by investment firm Accel.
