Doubao Seed 2.1 Turbo
Canonical page on the main site: sinoaihub.com/models/doubao-seed-2-1-turbo
Type
model
Definition
Doubao Seed 2.1 Turbo is a ByteDance model in the Doubao Seed family: 262,144-token context window; 262,144 max output; closed-weight; proprietary license; released 2026-06.
Key facts
- Context window: 262,144 tokens (max output 262,144)
- Weights: closed; proprietary license
- API pricing: $3.0 input / $15.0 output per 1M tokens (CNY)
- Released: 2026-06
- Capabilities: reasoning, vision, tool calling
Provider
Model Family
Doubao Seed
Version
260628
Aliases
- doubao-seed-2-1-turbo-260628
Release Date
2026-06
Status
active
Context Window
262144
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: 3.0
- output_price_per_1m: 15.0
- currency: CNY
- pricing_ref: bytedance
Official Api
Yes
Cloud Providers
- Volcengine Ark
Regions
- china
Known Limitations
- Architecture and parameter counts are not publicly disclosed by ByteDance for the Seed 2.1 series (API-only model)
- API served from cn-beijing region only; no international endpoint verified as of 2026-09-20
- No open-weight release; no self-hosting
Verification Status
partially_verified
Model Versions
| version | date | source | verification_date |
|---|---|---|---|
| 260628 | — | https://docs.volcengine.com/docs/ark/model-list?lang=zh | 2026-09-29 |
License Changes
No documented license changes on record as of 2026-09-29.
Last Verified
2026-09-20
Source history
No documented source-change events located as of 2026-09-20.
Sources
| evidence_id | source_name | source_url | source_type | published | verified | confidence | conflict |
|---|---|---|---|---|---|---|---|
| src-models-doubao-seed-2-1-turbo-1 | Ark official model list | https://docs.volcengine.com/docs/ark/model-list?lang=zh | Official documentation | — | 2026-09-20 | high | — |
| src-models-doubao-seed-2-1-turbo-2 | Ark official model pricing | https://docs.volcengine.com/docs/ark/model-pricing?lang=zh | Official documentation | — | 2026-09-20 | high | — |