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Thinking Machines introduces Inkling 2 Small with weights planned later

The 594-billion-parameter mixture-of-experts model is initially available through Tinker with closed weights.

Publisher: Thinking Machines Lab · Model / component: Inkling 2 Small
Availability: Hosted on Tinker; an open-weight release is planned, not yet available.

Concept illustration of a mixture of experts AI model
AI-generated editorial concept illustration. Not an official product image, screenshot, or photograph of a real event.
Event / context: Thinking Machines announcement: November 5, 2026. Source check: Nov 7, 2026.

Thinking Machines Lab introduced Inkling 2 Small, a mixture-of-experts model with 594 billion total parameters and 17 billion active parameters, according to the company. It accepts image inputs and supports variable effort. Read the original announcement and project details.

Why it matters

The company says it is initially available through its Tinker service with closed weights. It intends to release the full weights under Apache 2.0 after external safety testing, but that is a plan rather than a completed release.

What to know

The announcement includes coding and reasoning benchmark results reported by the developer. They are not independent tests by AiBrainWorX, and parameter counts alone do not tell you whether the model fits a particular computer.

Reported from linked primary sources. No model or product was independently tested.

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