WhichAI / Models / DeepSeek V3.1 Terminus

DeepSeek V3.1 Terminus

· verified October 3, 2026

public paid api open-weights local

Provider

Statuspublic

AA Intelligence Index14.8 (official, read October 3, 2026)

Released2025-09-22

Context window164K

ModalitiesText

API price $/1M (in / out)$0.27 / $1 (OpenRouter)

Speedn/a

AccessAPI $0.27/$1 per 1M tokens on OpenRouter · open weights · listed September 22, 2025

In one line

DeepSeek V3.1 Terminus by DeepSeek, measured by Artificial Analysis at 14.8 on the Intelligence Index, 43.5 on coding and 6.8 on agentic work. Added to WhichAI automatically from live data on October 3, 2026: no editorial review yet, so judge it by the numbers, not by a verdict. OpenRouter's description: “DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language...”

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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 3, 2026. 97 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 (Model guide and About > Methodology).