Model release · ByteDance

Doubao-Seed-2.1-Pro

Model released: Jun 23, 2026 · Date only

Seed2.1 flagship; closed source; agent/coding/office oriented

Availability

Doubao / Volcengine Ark API doubao-seed-2-1-pro-260628

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Source trace

Reviewed by Ailyre. Source evidence is presented separately from our summary.

seed.bytedance.com

seed.bytedance.com

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