Thinking Machines Lab Secures $2B Seed Funding at $12B Valuation

Thinking Machines Lab, an AI startup led by former OpenAI. CTO Mira Murati, recently secured a $2 billion seed funding round. This substantial investment, one of the largest seed rounds in history, values the company at $12 billion. Andreessen Horowitz. led the round, further highlighting significant interest in cutting-edge AI startups.

AI Innovation Fuels Record Seed Round

Several prominent investors participated in this funding. Nvidia., Accel., ServiceNow., Cisco., AMD., and Jane Street. joined the round. Additionally, Conviction Partners. also contributed to the financing. Thinking Machines Lab, founded in February 2025, has not yet revealed its specific product.

The company aims to build multimodal AI systems. Furthermore, it plans to include a significant open-source component in its initial product. This strategic focus positions Thinking Machines Lab as a potential competitor to established AI developers. These include OpenAI., Anthropic., and xAI.

The funding will accelerate research and development efforts. Consequently, the company will expand its engineering teams. This investment reflects a broader trend of robust DeepTech funding. U.S. AI startup funding. surged by 75.6% in the first half of 2025.