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Thinking Machines Lab · models

The second-generation model from Thinking Machines Lab, founded by former OpenAI CTO Mira Murati. A mixture-of-experts system with open weights promised, trained on long-horizon coding tasks.

Specifications

DeveloperThinking Machines Lab
TypeOpen-weight MoE LLM
Total parameters594 billion
Active parameters17 billion
Context256K tokens (with compaction)
ModalityText, image
AccessWeights promised (Apache 2.0)

Pricing

To be announced with the weight release; self-hosting will be free.

Strengths

  • Scored 31 on Artificial Analysis Intelligence Index v5.0.1
  • Open weights promised
  • Strong long-horizon coding performance

Weaknesses

  • Weights not yet released at launch
  • Very large total parameter count
  • New entrant with a small ecosystem