WhichAI / Models / Mercury 2

Mercury 2

· verified September 8, 2026

public paid api info-only speed

Provider

Statuspublic

AA Intelligence Index21.4 (September 8, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

API price $/1M (in / out)n/a

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.

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K-Exaone (LG AI Research) · AA 22.1Korean cloud ecosystem · some open releases

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ~ 55-66). Snapshot: September 4, 2026 (BenchLM mirror), retrieved September 8, 2026. Specs and prices come from the OpenRouter public model list on the same date. Models nobody has measured carry no index score at all and never enter a ranking: where an estimate exists it is shown separately and labelled unmeasured. Context, price, modality and release dates come from the public OpenRouter model list (retrieved September 8, 2026) and vendor pages. Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).