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Models / Doubao Seed 2.1 Turbo
Doubao Seed 2.1 Turbo
Doubao Seed family · Provider: bytedance · Status: active · Released: 2026-06
Doubao Seed 2.1 Turbo is a Doubao Seed model developed by bytedance, a Chinese AI company headquartered in No. 1 Building, Dazhongsi Plaza, No. 18A North Third Ring Road West, Haidian District, Beijing, China, released 2026-06 with a 262,144-token context window and closed weights.
| Key fact | Value |
|---|---|
| Model ID | doubao-seed-2-1-turbo |
| Version | 260628 |
| Architecture | Not publicly disclosed |
| Context window | 262,144 tokens |
| Max output | 262,144 tokens |
| Open weights | No |
| License | proprietary |
| Self-hosting | No |
| API available | Yes |
| API pricing | $3 input / $15 output per 1M tokens (CNY) · provider pricing page |
| Regions | china |
| Cloud providers | Volcengine Ark |
Capabilities
| Capability | Supported |
|---|---|
| Reasoning | Yes |
| Coding | Unknown |
| Math | Unknown |
| Chinese | Unknown |
| English | Unknown |
| Multilingual | Unknown |
| Vision | Yes |
| Audio | Unknown |
| Video | Unknown |
| Tool calling | Yes |
| Function calling | Unknown |
| Structured output | Yes |
| Agent capability | Yes |
| RAG | Unknown |
| Computer use | Yes |
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
Doubao Seed 2.1 Turbo is the lower-priced variant of ByteDance’s Seed 2.1 family, with a 256K-token context window and the same documented capability set as the Pro model (deep thinking, text generation, multimodal understanding, GUI task handling, tool calling, structured output).
API pricing is half that of the Pro model: 3.00 CNY input / 15.00 CNY output per 1M tokens, cache hits at 0.60 (as of 2026-09-20). A higher-priced low-latency tier (6.00 / 30.00) is also listed on the official pricing page.
Provider
Pricing
Related models (same family)
API
Model family timeline
| Model | Released | Status |
|---|---|---|
| Doubao Seed 2.1 Turbo (this page) | 2026-06 | active |
| Doubao Seed Evolving | 2026-06 | active |
| Doubao Seed 2.1 Pro | 2026-09 | active |
Data interpretation
| Field | Value | Evidence type |
|---|---|---|
| Context window | 262,144 tokens | Official |
| Open weights | No | Official |
| License | proprietary | Official |
| API pricing | $3 / $15 per 1M tokens (CNY) | Official |
| Family position | 3 models in the Doubao Seed family | China AI Hub analysis |
Evidence types: Official = vendor documentation, pricing pages or model cards. Vendor-reported = benchmark scores published by the vendor. China AI Hub analysis = derived from the database itself. See the sourcing policy.
Sources
Confidence and source hierarchy per the sourcing policy. Facts change; check the source before relying on this page.
What is the context window of Doubao Seed 2.1 Turbo?
Doubao Seed 2.1 Turbo has a 262,144-token context window and a maximum output of 262,144 tokens.
Is Doubao Seed 2.1 Turbo open weight?
No — Doubao Seed 2.1 Turbo is not open weight.
How much does Doubao Seed 2.1 Turbo cost through the API?
$3 per 1M input tokens and $15 per 1M output tokens (CNY).
Where does China AI Hub get its Doubao Seed 2.1 Turbo data?
From 2 sources (official pages first), last verified 2026-09-20. Benchmark scores are labeled by source type; see the sourcing policy for details.