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ByteDance

Seedream 4.5

Healthyimage-genediting
Context
-
Max output
-
Speed
Balanced
Quality
Standard
Released
2025-12-03
Input: / Output:
ImageTextImage

About this model

Seedream 4.5 high fidelity multi reference text to image model. Seedream 4.5 is a ByteDance image model for precise 2K to 4K generation and editing.

Pricing

RateRODIUSD (ref.)Unit
Image
Image out30.4~ 0.04per image (RODI/img, USD/img)

RODI prices include RodiumAi markup and upstream fees. USD figures are wholesale reference rates.

Providers & pricing

ProviderInputOutputCachedFree tierStatus
Runware

Runware

Default

All rates (1)
  • Image out30.4 RODI/img
----No data

Capabilities

Streaming
Tool calling
Vision
JSON mode
Reasoning

API usage

Generate images with client.images(): POST /v1/images/generations.

Examples

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Example response

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Reference image (edit or restyle)

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RodiumAi SDK

images() maps to POST /v1/images/generations for this image model.

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Use cases

  • Marketing visuals, social posts and ad variants from a short brief.
  • Product shots and mock-ups for a catalogue.
  • Illustrations for articles, slides and onboarding screens.
  • Concept art and moodboards before a design review.
  • Backgrounds, textures and placeholder images for apps.

Notes

  • Endpoint: POST https://api.rodiumai.io/v1/images/generations, the OpenAI Images format. Billing is per image (or per token for token-priced models, see the pricing table above).
  • Each item of data holds either b64_json (base64) or url, depending on the model. Handle both, as in the examples. Hosted URLs are temporary: download the file.
  • n (up to 10) asks for several variants in one call. size is WIDTHxHEIGHT, for example 1024x1024, 1536x1024 or 1024x1536. Sizes a model does not support are rejected or snapped by the model.
  • A reference image goes in image, or several in images (up to 14), as a base64 data URL or raw base64. Models served by OpenAI and Azure need inline base64, not a URL.
  • Describe subject, style, lighting and composition. Short, concrete prompts work better than long lists of adjectives.
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