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Mercury 3

Diffusion language model API from Inception Labs, with a 1 million token context window.

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Where it ranks

12 in AI agents
A fast model API when your agent needs a cheap, quick call.
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Pricing

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Inception listed a launch price of $0.10 per million input tokens and $0.35 per million output tokens, plus a token trial. Confirm the current rate.

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Added October 21, 2026

Last verified October 21, 2026

Dated releases

October 19, 2026
Inception Labs released Mercury 3, a diffusion language model on its API, OpenRouter, Baseten, and Vercel. The company lists a 1 million token context window.

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