Platform Profile
Thinking Machines
Mira Murati’s lab building open-weight multimodal base models and the Tinker customization platform—betting enterprises want models they can fine-tune, not only rent.
Role
Open-weight customization
Stack
MoE transformers, Tinker fine-tuning, multimodal RL
Status
Active
Thinking Machines Lab, founded by former OpenAI CTO Mira Murati, trains open-weight foundation models (Inkling family) and operates Tinker, a platform for fine-tuning and deploying customized checkpoints across inference partners.
Related Coverage
- Inkling-Small: 12B Active Beats Full Inkling on Coding—Lab Tables, Open Weights
Thinking Machines released Inkling-Small (276B/12B active open MoE) claiming SWE-Bench Verified 80.2% and ARC-AGI-2 40.1%—ahead of full Inkling—with vendor-cited output pricing of $1.20 per million tokens. Efficiency play for US open weights; treat coding wins as lab-reported without implying independent replication.
- Inkling: Murati’s Lab Bets on Customizable Open Bases, Not SOTA Chat
Thinking Machines Lab released Inkling—a 975B MoE open-weight multimodal (41B active, 1M context)—on Hugging Face with fine-tuning via Tinker. AA ~41 as leading U.S. open weights at debut; lab admits it is not the strongest model available.