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Overview Models Image, video & speech Coding tools Production API reference

Overview Models Image, video & speech Coding tools Production API reference

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Models Seedream

seedream-4-5ImageExamples verified 2026-09-25

Seedream 4.5

The previous Seedream; 2K and 4K at the same $0.04 / image.

Official price: $0.04/ image
Size tiers: 2K · 4K
Total pixels: 3.69–16.78 MP
Images per request: 1
Reference images: Up to 14≤ 30 MiB each
Not supported (returns 400): mask

Notes

Returns exactly 1 image per request; any other n returns 400.
Result links expire after 24 hours; after that you have to regenerate and pay again.
Outputs JPEG only.
Minimum output is 2K.

Build a requestJSON Schema

Available groups

Seedream Image Generation

Integration guide

Specs and limits

Source: spec/seedance.json, the same data the gateway validates against.

Size tiers: 2K · 4K
Total pixels: 3.69–16.78 MP
Images per request: 1
Reference images: Up to 14≤ 30 MiB each
Output formats: jpeg

Endpoints

POST/v1/images/generations
POST/v1/images/edits

Same family

seedream-5-0-pro seedream-5-0-lite

Prices come from the public catalog; limits come from specs exported from the gateway’s validation code. Actual charge = official price × group multiplier.