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Ex-OpenAI CTO Launches Tinker: A Game-Changer for AI

10/4/2025

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Summary

Story summary

Mira Murati, former OpenAI CTO, launched Tinker, a Thinking Machines Lab API, on October 1, 2025.
Tinker simplifies AI model fine-tuning with a Python-native interface, automated distributed training, and an open-source Cookbook.
The API is in private beta and has drawn interest from Princeton and Stanford.
Thinking Machines Lab aims to democratize AI research and is backed by $2 billion.

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Story summary

Mira Murati, former OpenAI CTO, launched Tinker, a Thinking Machines Lab API, on October 1, 2025.
Tinker simplifies AI model fine-tuning with a Python-native interface, automated distributed training, and an open-source Cookbook.
The API is in private beta and has drawn interest from Princeton and Stanford.
Thinking Machines Lab aims to democratize AI research and is backed by $2 billion.