# GPT Image 2.5

> Canonical: https://stable-diffusion-web.com/fr/gpt-image-2-5

Start with a familiar brief and inspect where the output differs from your existing image results. Keep the same subject and composition while trying Sunburst and Flare separately; neither variant is a Stable Diffusion checkpoint.

## GPT Image 2.5 model comparison

### Is this a Stable Diffusion checkpoint?

GPT Image 2.5 is offered through Kie as two distinct variants. It is not a checkpoint that accepts your Stable Diffusion sampler or LoRA settings.

## Technical specs

### 20,000

Prompt characters

### 30 MB

Per reference file

### 1K–4K

Output size options

### 1–4

Images per batch

## Who should use model comparisons?

### A practical starting point

Image makers evaluating a different generation family can compare the same visual brief against their current checkpoint workflow.

## Questions about model comparison

### What are the reference requirements?

Supply JPEG, WebP or PNG files no larger than 30 MB apiece. The workspace limits a request to ten references and trims prompts beyond 20,000 characters.

### Does every crop support 4K?

The four additional crops—8:9, 9:8, 16:27 and 27:16—stop at 1K. Square, auto and the remaining supported ratios can use 2K or 4K.

### How does background removal work?

Select Transparent. For high-resolution Sunburst edits, request extraction of the subject with no backdrop or cast shadow. Examine edges in the output rather than assuming a perfect cutout.

## Continue with your image

## Outils associés

### [Centre de modèles Stable Diffusion](https://stable-diffusion-web.com/fr/models)

### [Grok Imagine (modèle)](https://stable-diffusion-web.com/fr/grok-imagine)

### [GPT Images 2 (modèle)](https://stable-diffusion-web.com/fr/gpt-image-2)

### [Hailuo 02 (modèle)](https://stable-diffusion-web.com/fr/hailuo)

### [GPT Image 1.5 (modèle)](https://stable-diffusion-web.com/fr/gpt-4o-image)

### [Kling IA (modèle)](https://stable-diffusion-web.com/fr/kling)

_Dernière mise à jour : 14 juillet 2026_