Doubao Seed 2.1 Pro
Canonical page on the main site: chinaaihub.com/models/doubao-seed-2-1-pro
Provider
Model Family
Doubao Seed
Version
260915
Aliases
- doubao-seed-2-1-pro-260915
- doubao-seed-2-1-pro-260628
Release Date
2026-09
Status
active
Context Window
1048576
Maximum Output
262144
Capabilities
- reasoning: Yes
- vision: Yes
- tool_calling: Yes
- structured_output: Yes
- agent_capability: Yes
- computer_use: Yes
Open Weight
No
License
proprietary
Self Hosting
No
Api Available
Yes
Pricing
- input_price_per_1m: 6.0
- output_price_per_1m: 30.0
- currency: CNY
- pricing_ref: bytedance
Official Api
Yes
Cloud Providers
- Volcengine Ark
Regions
- china
Benchmark Results
| benchmark | score | metric | model_version | date | source_type | source_url |
|---|---|---|---|---|---|---|
| Code Arena Frontend | 1539 (rank 8) | arena score | Seed 2.1 (preview) | 2026-06-23 | vendor_reported | https://seed.bytedance.com/en/blog/seed2-1-officially-released-advancing-ai-productivity |
Known Limitations
- API served from cn-beijing region only; no international endpoint verified as of 2026-09-20
- No open-weight release; no self-hosting
- Exact release day for the 260915 version not officially stated (month 2026-09 only)
Last Verified
2026-09-20
Sources
| source_name | source_url | source_type | last_verified | confidence | published_date |
|---|---|---|---|---|---|
| Ark official model list | https://docs.volcengine.com/docs/ark/model-list?lang=zh | official | 2026-09-20 | high | — |
| Ark official model pricing | https://docs.volcengine.com/docs/ark/model-pricing?lang=zh | official | 2026-09-20 | high | — |
| Ark model release announcements | https://docs.volcengine.com/docs/ark/model-release-announcement | official | 2026-09-20 | high | — |
| ByteDance Seed official blog — Seed 2.1 release | https://seed.bytedance.com/en/blog/seed2-1-officially-released-advancing-ai-productivity | official | 2026-09-20 | high | 2026-06-23 |