Ark API
Canonical page on the main site: chinaaihub.com/api/ark
Provider
Api Type
official
Endpoint
https://ark.cn-beijing.volces.com/api/v3
Authentication
API key (Bearer token); AK/SK also documented for the chat API
Streaming
Yes
Tool Calling
Yes
Structured Output
Yes
Vision
Yes
Context Limits
| model | input_limit | output_limit |
|---|---|---|
| doubao-seed-2-1-pro | 1048576 | 262144 |
| doubao-seed-evolving | 1048576 | 262144 |
| doubao-seed-2-1-turbo | 262144 | 262144 |
Rate Limits
Flagship Doubao models: 500 RPM / 1,000,000 TPM (as of 2026-09-20)
Regions
- china
Cloud Providers
- Volcengine
Pricing Ref
Documentation
https://docs.volcengine.com/docs/ark
Last Verified
2026-09-20
Sources
| source_name | source_url | source_type | last_verified | confidence |
|---|---|---|---|---|
| Ark product overview (base URL, auth) | https://docs.volcengine.com/docs/ark/product-overview?lang=zh | official | 2026-09-20 | high |
| Ark Responses API reference | https://docs.volcengine.com/docs/ark/responses-api-text-generation?lang=zh | official | 2026-09-20 | high |
| Ark Chat API reference | https://docs.volcengine.com/docs/ark/chat-api?lang=zh | official | 2026-09-20 | high |