AI Market Movers · Frontier labs & chatbots
Thinking Machines Lab
Private
Thinking Machines Lab is Mira Murati’s San Francisco shop. Tinker is the fine-tuning API. The giant follow-on round that was shopped around did not close.
- Product
- Tinker
- Who
- Mira Murati, Founder
- Last reported post-money
- $12B
- As of
- July 2025
- Round
- Seed post-money.
In the Daily
· Morning Brief
They opened the AGI era with the door half openGPT-6 Astra ships with Critical cyber gates and a warning it can evade monitors — plus Anthropic’s $15B revolver, Crusoe’s neocloud raise, and Hands On exclusives.
· Closing Time
Closing Time: The model ran on Chinese chipsZ.ai served GLM-5.3-Flash on home-grown silicon. Labs asked for a cyber shield. Indiana broke ground on HBM packaging.