WhichAI / Models / Doubao Seed 2.1 Pro

Doubao Seed 2.1 Pro

· verified September 8, 2026

public paid api info-only enterprise multilingual

Provider

Statuspublic

AA Intelligence Index~42 (WhichAI estimate)

Releasedn/a

Context windown/a

Modalitiesn/a

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

Speedn/a

AccessChina-focused: served via ByteDance's Volcano Engine cloud only

The score shown is a WhichAI estimate from adjacent benchmarks, not an official measurement.

In one line

Built for raw scale - the Doubao family reportedly handles over a hundred trillion token calls a day, mostly inside China's consumer apps. Hard to access from the West.

Coding72

Reasoning70

Writing64

Agents & tools68

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

Alternatives worth a look

MiMo-V2.5-Pro (Xiaomi) · AA 42.2Xiaomi cloud & devices (closed)
Inkling (Thinking Machines Lab) · AA 42.3Open weights (Apache 2.0) on Hugging Face · Tinker API (256K ctx)
Hunyuan 3.0 (Hy3) (Tencent) · AA 41.2Open weights (Apache 2.0, released July 6, 2026) · 295B MoE, 21B active · 256K context

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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).