Mercury 2.5
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 #933 on the Dev Radar, in Backend & APIs, first seen 10 days ago and shared in 1 post (13.2k views).
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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Mercury 2.5 in numbers
- Rank on the Dev Radar: #933 of 1355
- Shared in 1 post by 1 account: @OpenRouter
- 13.2k views on those posts
- First seen 10 days ago, last shared 10 days ago
- Pricing seen by Jev: paid
- Market: Backend & APIs
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 #933 on the Dev 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. 12.2k posts from 4.7k X accounts over the last 21 days, 1.4k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 18:39 UTC. Full method.