WhichAI / Models / Mercury 2

Mercury 2

· verified October 14, 2026

public paid api info-only speed

Provider

Statuspublic

AA Intelligence Index13.8 (official, read October 14, 2026)

Released2026-03-04

Context window128K

Modalitiesn/a

API price $/1M (in / out)$0.25 / $0.75 (OpenRouter)

Speedn/a

AccessAPI

In one line

A diffusion language model - generates text in parallel rather than token-by-token, hitting extreme speeds. The most interesting architectural outsider on the board.

Coding52

Reasoning44

Writing42

Agents & tools40

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

Alternatives worth a look

Mistral Medium 3.5 (Mistral AI) · AA 14.2Open weights · Le Chat · API
Nova 2 Lite (Amazon) · AA 13.4API $0.3/$2.5 per 1M tokens on OpenRouter · listed December 2, 2025
Qwen3.5-9B (Alibaba) · AA 13.3API $0.1/$0.15 per 1M tokens on OpenRouter · open weights · listed March 10, 2026

Open Mercury's official app ↗ Open in the WhichAI app Not sure? Take the 30-second finder

Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 14, 2026. 209 models carry a current official measurement. A value marked ~ is converted from an earlier snapshot because no current measurement is published; an unmeasured model is never ranked. Context, price, modality and listing dates come from the public OpenRouter model list (refreshed automatically on the live site; static copy retrieved October 3, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (the Ranking chapter and About > Methodology).