Canonical page: https://mixerai.org/en/knowledge/compare/gpt-image-2-vs-gpt-image-2-5/

[Mixer AI](https://mixerai.org/) › [Knowledge Base](https://mixerai.org/en/knowledge/) › [Comparison](https://mixerai.org/en/knowledge/compare/) › GPT Image 2 vs GPT Image 2.5

# GPT Image 2 vs GPT Image 2.5

Both versions accept up to 16 images and support 1K, 2K and 4K in Mixer AI. GPT Image 2.5 exposes more aspect options. In a direct test, a direct test placed Image 2, Flare and Sunburst side by side, which makes it possible to separate product facts from test-specific visual differences.

[Try it on Mixer AI](https://mixerai.org/?dl=kb_gpt-image-2-vs-gpt-image-2-5#/canvas)

## Key differences

Both versions generate and edit images in Mixer AI and accept up to 16 input images.

GPT Image 2.5 currently exposes 13 aspect options in Mixer AI versus 6 for GPT Image 2.

In the side-by-side test, several results were close; the reviewer often preferred Sunburst for detail, but a complex composition showed worse body anatomy.

## Specifications

| Spec | GPT Image 2 | GPT Image 2.5
| Model variants | GPT Image 2 | Flare / Sunburst
| Generation modes | from text / photo editing | from text / photo editing
| Input photos | up to 16 | up to 16
| Transparent background | Yes | No
| Resolutions | 1K / 2K / 4K | 1K / 2K / 4K
| Aspect ratios | 9:16 / 16:9 / 1:1 / auto / 4:3 / 3:4 | 9:16 / 16:9 / 1:1 / auto / 3:2 / 2:3 / 4:3 / 3:4 / 21:9 / 27:16 / 16:27 / 9:8 / 8:9
| Prompt limit | 20,000 characters | 20,000 characters
| Price, 1 image · 1K | 6 coins | 6 coins

## Observations from one side-by-side test

- On a graphic poster, Image 2 already produced readable text; the reviewer saw a small clarity increase with 2.5 and another step with Sunburst.

- After stronger art direction, the reviewer again preferred Sunburst but explicitly described the differences as very small and largely a matter of preference.

- In a multi-panel scene, Sunburst looked best to the reviewer overall, yet its legs and body shapes were worse; preserving the text coincided with anatomy distortion in that result.

## What repeats and what does not

The test does not support a blanket claim that 2.5 is always better. A narrower pattern is visible: some graphic-design outputs looked sharper, while the advantage was often small and did not remove local errors.

- GPT Image 2 already produced readable text in the test; 2.5 does not make typography error-proof.

- Across several images, the reviewer described the gap between the three outputs as minor.

- Anatomy and small graphic elements still need inspection on either version.

## What is actually available in Mixer AI

The video used another interface. For Mixer AI, the relevant facts are the controls exposed here: both versions edit images and support 1K–4K, while GPT Image 2.5 has a wider set of aspect options. External quality modes shown in the review are not treated as Mixer AI features.

## What we compare

[

GPT Image 2

Current Mixer AI route: editing, up to 16 images, 1K/2K/4K, 6 aspect options.

](https://mixerai.org/en/knowledge/image/gpt-image-2/)[

GPT Image 2.5

Current Mixer AI route: editing, up to 16 images, 1K/2K/4K, 13 aspect options.

](https://mixerai.org/en/knowledge/image/gpt-image-2-5/)

## FAQ

Does GPT Image 2.5 always produce a higher-quality image?

No. The direct test often showed a small gap, and one complex composition had visibly worse body anatomy in the Sunburst result.

Is the input-image limit different in Mixer AI?

No. Both currently accept up to 16 images. The clearer interface difference is the larger aspect-ratio set on GPT Image 2.5.

## See also

[GPT Image 2 vs Nano Banana 2→](https://mixerai.org/en/knowledge/compare/gpt-image-2-vs-nano-banana-2/)[Nano Banana 2 vs Seedream 5.0 Pro→](https://mixerai.org/en/knowledge/compare/nano-banana-2-vs-seedream-5-0-pro/)

[Try it on Mixer AI](https://mixerai.org/?dl=kb_gpt-image-2-vs-gpt-image-2-5#/canvas)