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model

Doubao

Direct answerDoubao models in Volcengine Ark cover text, reasoning, coding, agents, and multimodality. Prebuilt models normally use a Model ID in model; custom deployments use an Endpoint ID.

Updated · Reviewed

Family position

Doubao Seed is served through Volcengine Ark for general text, reasoning, coding, agents, and multimodality; image and video are related but separate media lines. Ark also hosts third parties, whose ownership follows the author field.

Capability tiers

Capability-first variants fit complex engineering, long tool chains, and high-value work; Turbo or Lite classes emphasize latency and cost; evolving IDs can upgrade without a client change. Vision, thinking, tools, and context remain model-specific.

Choosing within the family

Compare requirement understanding, long planning, closed-loop tools, visual input, latency, and tokens on production samples. Evolving IDs fit teams that accept continuous upgrades, while audited or highly reproducible systems should pin versions.

API use

Prebuilt Ark models normally put the official Model ID in model; only custom deployments use an Endpoint ID. This gateway uses the marketplace name and its own Bearer token. Distinguish Model ID, Endpoint ID, and channel alias, and do not copy a console display title into a request.

Limits

Region, enablement, quota, safety, caching, and price are Ark configuration. Verify current version, API compatibility, residency, media input, output cap, and update policy.

Use cases

  • General agents
  • Multimodality
  • Media generation

API protocols

  • /v1/chat/completions

FAQ

Is the model name permanent?

No. Official aliases can move and enabled API IDs can change; pin a tested ID in production and verify availability separately in the model marketplace.

How should I choose among capability-first, Turbo or Lite, and evolving Doubao IDs?

Evaluate capability-first tiers for complex engineering and long tool chains and Turbo or Lite for interactive and cost-sensitive work. Evolving IDs fit continuous upgrades; audited, regression-heavy, or strongly reproducible systems should pin versions. Compare quality, latency, and tokens on production samples.

Are a Doubao model ID, endpoint ID, and gateway model name the same thing?

No. Prebuilt Ark models normally use an official Model ID, custom deployments use an Endpoint ID, and this gateway may expose a channel alias; verify each mapping during migration. Text chat, Responses, and image or video media can also use different protocols and payloads.

  • ByteDance DoubaoDirect Ark access uses a project API key and https://ark.cn-beijing.volces.com/api/v3. Preset models normally use a model ID, custom deployments use an endpoint ID, and this gateway uses its own token and enabled model name.
  • OpenAI-compatible API guideThis site's OpenAI-compatible routes use a Bearer token; Responses, Chat Completions, and media endpoints have distinct objects and streaming semantics and must match the target model.
  • Video generation and asynchronous API guideDesign video generation as an asynchronous job system with idempotent submit, persisted IDs, bounded polling or verified callbacks, terminal handling, output transfer, and moderation.

Official sources

  1. Volcengine Ark Official