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LiveUpdated 2026-09-19 18:08 UTC

Mercury 2.5

Mercury 2.5 — Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from…

Mercury 2.5 is Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. $0.04 per million input tokens, $0.15 per million output tokens. 260,000 token context window, maximum output of 65,536…. It is ranked #925 on the AI Radar, in AI infra & evals, first seen 10 days ago and shared in 1 post (13.2k views).

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What people said about Mercury 2.5 on X

Mercury 2.5 from @_inception_ai is now generally available on OpenRouter. It's the fastest model on our Fastest Models leaderboard that doesn't require specialized hardware. A diffusion LLM: it decodes tokens in parallel rather than one at a time. The gain is largest on code-heavy prompts. Use it here:…

@OpenRouter, 10 days ago · 169 likes · see the post

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FAQ

What is Mercury 2.5?

Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. $0.04 per million input tokens, $0.15 per million output tokens. 260,000 token context window, maximum output of 65,536… It was first shared on X 10 days ago and is ranked #925 on the AI Radar.

Is Mercury 2.5 free?

It is a paid product.

Who shared Mercury 2.5?

1 account on X, including @OpenRouter, in 1 post totalling 13.2k views.

Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 27.2k posts from 4.8k X accounts over the last 14 days, 1.2k tools, 19 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 18:08 UTC. Full method.