Seedream 4.5

Upgraded ByteDance image model with stronger spatial understanding and world knowledge.

What it is good for

Spatial intelligence with Seedream 4.5

Upgraded ByteDance Seedream 4.5 with stronger spatial understanding and world knowledge — multi-reference generation and editing up to 4K.

Create with Seedream 4.5

Environment-heavy scenes

Create interiors, cityscapes, and layered compositions with spatial fidelity.

Knowledge-driven subjects

Illustrate recognizable products, places, or cultural details accurately.

High-res marketing frames

Deliver 4K visuals when campaigns need extra pixel headroom.

Key capabilities

Why creators pick Seedream 4.5

Better spatial understanding

Objects sit naturally in depth with more believable scene layout.

World knowledge

Handles real-world subjects, locales, and context with fewer hallucinations.

Up to 4K output

Choose 2K or 4K when the asset needs large, detail-rich frames.

Fourteen reference slots

Guide generation or edits with many uploads in one pass.

Batch variations

Generate up to fifteen images when exploring direction.

How to get a strong result

Tips for better results

Start with the subject, then add lighting, style, and anything that must stay the same. Upload a reference whenever you want a more controlled edit.

  1. 1

    Describe spatial relationships

    Mention foreground, background, and scale for best layout results.

  2. 2

    Use 4K selectively

    4K costs more — reserve it for finals, not every draft.

  3. 3

    Organize many references

    Label which upload controls style versus subject.

  4. 4

    Compare with Seedream 5 tiers

    Move to 5 Pro or Lite when you need the newest editing stack.

Series compare

Compare Seedream versions

From Seedream 3 text-to-image to Seedream 5 Pro flagship editing — compare ByteDance models by speed, resolution, and edit strength.

Feature
Seedream 4.5Current
Best forFlagship gen and editingReasoning and multi-refSpatial and world knowledgeUnified gen and editNative 2K text-to-image
SpeedFastFastModerateModerateFast
Detail / resolutionUp to 2K (~4MP)Up to 3KUp to 4KUp to 4KNative 2K
Multi-image refsUp to 10 refsUp to 14 refsUp to 14 refsUp to 10 refsNot supported
Text-to-imageExcellentStrongStrongStrongStrong
EditingFlagship editingExample-based editingStrong editingSingle-sentence editsNot supported

Turn your next idea into an image with Seedream 4.5

Return to the workspace above, or compare the full catalog before you begin.