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Mercury 2

ModelActive
by Inception Labs · family “mercury”

Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produces and refines multiple tokens in parallel, achieving... (description from the OpenRouter listing)

in: textout: textReasoningTool useStructured output
Epoch Capabilities Index
Not scored by Epoch AI
Listing ↗
Released
4 Mar 2026
Context window
128K tokens
Max output
50K tokens
Input $ / 1M tokens
$0.25
Output $ / 1M tokens
$0.75
Cached input $ / 1M
$0.025
Each benchmark shown separately with its own source

Benchmark results (1)

All benchmarks
BenchmarkDomainScorevs best recordedSettingRunSource
WeirdMLcoding43.2% ±0.0
46%
——External ↗

Source: Epoch AI Benchmarking Hub (CC BY 4.0). “External” rows are leaderboard results Epoch collects from third parties. Best reported setting per benchmark is shown.

API list price over time

Price history

$ per 1M tokens

7 recorded prices on 1 Apr 2026 (OpenRouter listing + Internet Archive snapshots); re-read on every data refresh, most recently 7h ago. Steps show when the price changed.

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