# Seedream 4.5 AI Image Generator

> High-fidelity multi-image editing with stronger typography than Seedream 4.

Canonical URL: https://allimageai.com/models/seedream-4-5/

Website: All Image AI

Language: English

Seedream 4.5 is the reference-faithful branch between Seedream 4 and the newer 5-series. It accepts up to ten ordered images, preserves small product and identity details well, and can render the result directly at 2K or 4K.

## Model details

- Developer: ByteDance
- Status on All Image AI: Active
- Last verified: 2026-08-25
- Maximum output: 4K
- Modes: Text to Image, Image to Image, Edit Image, Multi-reference
- Reference images: up to 10
- Resolutions: 2K, 4K
- Aspect ratios: 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 21:9

## Best for

- Multi-product compositions
- Identity-preserving edits
- Dense poster text
- Native 4K campaign assets

## How to use

1. Choose a generation or edit mode.
2. Upload and number every reference.
3. State both what changes and what stays fixed.
4. Render the final direction at 4K.

## Settings explained

### Reference Images

Up to ten images are accepted; identify each input by its order.

### Resolution

Use 2K while iterating and 4K only for the selected final.

## Prompt examples

### Reference assembly

> Use the person from image 1, the jacket from image 2 and the room from image 3; preserve the face and garment details exactly, soft editorial light

### Campaign poster

> Premium skincare poster with the exact headline “NIGHT RENEWAL”, product centered, dark indigo gradient, fine botanical linework

## Limitations

- 2K is the minimum output tier
- Ten references need numbered roles in the prompt
- Important copy still needs proofreading

## Pricing and credits

Credits for one image at default quality and mode. Resolution, quality, reference inputs, edit mode and output count can change the total. Check the Generate button before submitting.

| Resolution | Credits / image |
| --- | --- |
| 2K | 3 |
| 4K | 3 |

Failed generations cost 0 credits. Catalog availability does not guarantee runtime availability; the workspace reports whether the selected model can run.

[Credit plans](https://allimageai.com/pricing.md)

## Test results

Testing in progress. No verified benchmark scores have been published for this model.

## Commercial use and image handling

Commercial use is governed by ByteDance's model terms and the selected service terms.

Uploads are processed by the configured inference service. You can delete a generation from your history.

## Frequently asked questions

### How many images can I reference?

Up to ten. The input images plus generated images must remain within the upstream operation limit.

### Is this silently routed to Seedream 5?

No. It calls the exact Seedream 4.5 generation or editing operation.

## Release history and sources

December 3, 2025 — Model announced

This date applies to the event shown. Later API access, weights and availability on All Image AI may have different dates.

- [byteplus.com](https://www.byteplus.com/en/blog/seedream4-5)

[Event evidence on the timeline](https://allimageai.com/timeline/#event-seedream-4-5)

## Other versions

- [Seedream 5 Pro](https://allimageai.com/models/seedream-5-pro.md): Multi-reference · 2K
- [Seedream 5 Lite](https://allimageai.com/models/seedream-5-lite.md): Multi-reference · 4K
- [Seedream 4](https://allimageai.com/models/seedream-4.md): Recommended · 4K