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Seedream 4.5

Seedream 4.5 is the latest in-house image generation model from ByteDance. Compared with Seedream 4.0, it delivers better editing consistency, stylization, and prompt adherence at $0.04 per image.

Image Gen
index.ts
import { experimental_generateImage as generateImage } from 'ai';


const result = await generateImage({
  model: 'bytedance/seedream-4.5',
  prompt: 'A red balloon on a wooden table.'
});
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Frequently Asked Questions

  • How does Seedream 4.5 differ from Seedream 4.0?

    Seedream 4.5 improves editing consistency, stylization, and prompt adherence over Seedream 4.0. Subjects, lighting, and color tone hold better across edits, and the model also gains in portrait refinement, small-text rendering, multi-image composition, and visual aesthetics.

  • Does Seedream 4.5 support multi-image inputs?

    Yes. Seedream 4.5 retains multi-image composition capability and improves subject consistency across the generated set compared with Seedream 4.0.

  • When is Seedream 4.5 the right choice over Seedream 4.0?

    Pick Seedream 4.5 when editing fidelity matters: portrait touch-ups, small-text changes, brand-controlled refinements, or any pipeline where the source image is approved and only specific elements should change.

  • How do I call Seedream 4.5 through AI Gateway?

    Set the model to bytedance/seedream-4.5 and call it through the AI SDK's generateImage function. AI Gateway routes the request through bytedance using your API key or OIDC token.

  • What does Seedream 4.5 cost per image?

    Seedream 4.5 is listed at $0.04 per image. See N/A for the full pricing breakdown.

  • Does Vercel AI Gateway support Zero Data Retention for Seedream 4.5?

    Zero Data Retention is not currently available for this model. Zero Data Retention is offered on a per-provider basis. See https://vercel.com/docs/ai-gateway/capabilities/zdr for details.