# Seedream 4.5 model guide

A practical guide to Seedream 4.5 on GPT Image Hub: ByteDance's design-focused image model at 2K and 4K, with clean typography, reference edits, measured render times, and real examples.

URL: https://www.gptimagehub.com/models/seedream-4-5
Official model ID: seedream-4-5-251128
Provider: ByteDance Seedream
Updated: 2026-10-23

## Direct answer

Seedream 4.5 is ByteDance's image model with stronger typography and design control than 4.0. On GPT Image Hub it renders 2K and 4K images for 33 credits each; it has no 1K tier because it needs at least about 3.7 megapixels. In the Hub's tests it rendered clean poster text, replaced a headline and background in a reference edit, and produced a 4K product photo in 28 seconds.

## Model facts

- Official model ID: seedream-4-5-251128
- Provider: ByteDance Seedream
- Hub quality tiers: 2K, 4K
- Reference images: Up to 10
- Price: 33 credits at 2K and 4K
- Cost per image: 33 credits (≈ $0.033 at the Plus pack rate); pricing: https://www.gptimagehub.com/pricing

## Best use cases

- Product posters and ads with short headlines.
- Large product and lifestyle photos at 4K.
- Restyling an existing product shot from a reference.
- Brand visuals that need clean, minimal layouts.

## Where to be careful

- 1K drafts; 4.5 starts at 2K (use Seedream 4.0 or 5.0 Pro for 1K).
- Transparent backgrounds, which Seedream does not output.

## Prompting guidance

- Put the headline in quotes and say where it goes.
- Describe materials and light for product shots.
- For edits, list what stays the same first, then the change.
- Use 4K for print and hero banners; it costs the same as 2K.

## Example prompts

```text
Minimal skincare product poster: a frosted glass serum bottle on a pale sage stone pedestal, soft shadows, small headline text "CALM SKIN" in thin sans-serif at the top, clean studio background.
```

```text
Cinematic product photo of a stainless steel espresso machine on a dark marble counter, morning light through a window, steam, crisp reflections, no text.
```

```text
Keep the bottle and pedestal exactly; change the background to a warm sunset gradient and the headline to "GLOW".
```

## Sources

- [BytePlus ModelArk model pricing](https://ai.byteplus.com/ark/region:ap-southeast-1/docs/model-pricing)
- [BytePlus ModelArk Seedream documentation](https://docs.byteplus.com/en/docs/ModelArk/1824718)

## FAQ

### Why is there no 1K option for Seedream 4.5?

Seedream 4.5 needs at least about 3.7 megapixels per image, so GPT Image Hub offers 2K and 4K. Smaller aspect-ratio sizes at 2K are scaled up automatically.

### How much does Seedream 4.5 cost?

33 credits per image (about $0.033) at 2K or 4K, based on BytePlus's $0.04 list price.

### Can Seedream 4.5 edit an existing image?

Yes. In the Hub's test it kept a product and pedestal, swapped the background to a sunset, and replaced the headline in 82 seconds. It accepts up to 10 reference images.