Will's Blog: Mira Murati's Thinking Machines Lab makes Tinker, its API for fine-tuning language models, generally available, adds support for Kimi K2 Thinking, and more (Thinking Machines Lab)

12 December 2025

Mira Murati's Thinking Machines Lab makes Tinker, its API for fine-tuning language models, generally available, adds support for Kimi K2 Thinking, and more (Thinking Machines Lab)

Thinking Machines Lab:
Mira Murati's Thinking Machines Lab makes Tinker, its API for fine-tuning language models, generally available, adds support for Kimi K2 Thinking, and more — Today we are announcing four updates to Tinker: — No more waitlist — New reasoning model: Kimi K2 Thinking

Posted from: this blog via Microsoft Power Automate.