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Thinking Machines

Thinking Machines is best evaluated through its Inkling models, reasoning models from the lab founded by Mira Murati.

summary

Thinking Machines Lab is an AI company based in San Francisco, founded in February 2025 by Mira Murati, former chief technology officer of OpenAI, and structured as a public benefit corporation. Its team includes researchers from OpenAI and other leading labs, and it previously released Tinker, an API for fine-tuning models. On Eden AI, Thinking Machines offers Inkling, with reasoning, function calling, image input and a context window of about one million tokens, and Inkling Small, with the same capabilities and a 524K context window.

What is Thinking Machines?

Thinking Machines Lab is an American artificial intelligence company based in San Francisco and structured as a public benefit corporation. It was founded in February 2025 by Mira Murati, former chief technology officer of OpenAI, with researchers from several leading AI labs. Its stated goal is to make AI systems more widely understood, customizable and generally capable.

Thinking Machines models available on Eden AI

Inkling: reasoning, function calling and image input, with a context window of about one million tokens.
Inkling Small: a smaller model with reasoning, function calling and image input, and a 524K context window.

When to choose Thinking Machines

You need reasoning and tool calling with image input and long context.
You want to compare a new frontier lab's models with established ones.
You need a smaller, cheaper option with the same capabilities (Inkling Small).

How to use Thinking Machines with Eden AI

Call the Inkling models with the Eden AI chat completions API and your Eden AI API key. Each model page lists the providers serving it, with prices, regions and measured speed.