WhichAI / Models / Claude Sonnet 4

Claude Sonnet 4

· verified October 13, 2026

legacy paid api vision

Provider

Statuslegacy

AA Intelligence Index18.9 (official, read October 13, 2026)

Released2025-05-22

Context window200K

ModalitiesText + image + files

API price $/1M (in / out)$3 / $15 (OpenRouter)

Speedn/a

AccessAPI $3/$15 per 1M tokens on OpenRouter · listed May 22, 2025

In one line

Claude Sonnet 4 by Anthropic, measured by Artificial Analysis at 18.9 on the Intelligence Index, 37.6 on coding. Added to WhichAI automatically from live data on October 13, 2026: no editorial review yet, so judge it by the numbers, not by a verdict. OpenRouter's description: “Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability.”

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LongCat 2.0 (Meituan) · AA 19.1API $0.3/$1.2 per 1M tokens on OpenRouter · open weights · listed July 20, 2026
MiniMax M2 (MiniMax) · AA 18.6API $0.3/$1.2 per 1M tokens on OpenRouter · open weights · listed October 23, 2025
GLM 4.6 (Z.ai) · AA 18.5API $0.5/$2 per 1M tokens on OpenRouter · open weights · listed September 30, 2025

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Artificial Analysis Intelligence Index, official scale (the number published on artificialanalysis.ai), relayed by OpenRouter and refreshed automatically: last read October 13, 2026. 210 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).