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更新日: 2026-06-06

Doubao Seedream

Crazyrouter exposes the Seedream image family through the OpenAI Images-compatible public contract. Clients keep using /v1/images/generations; ByteDance official and other third-party channels stay internal as providers only.

Public Models

“Beta” here means the customer-facing contract and official capability definition are aligned first, while production carrier closure and live artifact evidence are still being completed.

Public Contract

Request Parameters

Reference Image Limits

  • Seedream 4.0, 4.5, and 5.0 lite officially support up to 14 reference images
  • maximum single reference image size is 10MB
  • officially supported input formats now include jpeg, png, webp, bmp, tiff, and gif
  • officially supported input aspect-ratio range is 1/16 to 16

Request Examples

Response Example

Official Billing Truth

The currently confirmed official truth is billing per successfully generated image, not token-display pricing.

Alignment Notes

  • The customer-facing contract has been narrowed to /v1/images/generations
  • Seedream 4.5 currently centers on official 2K and 4K sizing, with default 2048x2048
  • optimize_prompt_options.mode is currently aligned only as standard for Seedream 4.5 and 5.0 lite; fast is not a public commitment yet
  • Seedream 3.0 stays as a compatibility alias, but the official-alignment focus of this page is now 4.0 / 4.5 / 5.0 lite