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# GPT Image 2.5 vs Sunburst — Default vs Precision | Clip Studio

> GPT Image 2.5 vs GPT Image 2.5 Sunburst: same 4 ad sizes, edits, and quote at the same size. Sunburst trades longer generation for intricate detail and tightly scoped edits. Try both online.

Canonical page: https://clipstudio.ai/ai-image-models/gpt-image-2-5-vs-gpt-image-2-5-sunburst

## Intent

Same OpenAI model family, same four ad sizes, same edit support, and the same quote at the same size. Sunburst is the precision variant for intricate detail and tightly scoped edits, with longer generation times.

## Spec table

| Spec | ChatGPT Image 2.5 | ChatGPT Image 2.5 Sunburst |
| --- | --- | --- |
| Provider | OpenAI | OpenAI |
| Modes | Text to image · Image to image | Text to image · Image to image |
| Edit from a still | Yes, one source still | Yes, one source still |
| Aspect ratios | 4: 9:16, 1:1, 4:5, 16:9 | 4: 9:16, 1:1, 4:5, 16:9 |
| Size in Image Lab | 1024 × 1024 at 1:1 | 1024 × 1024 at 1:1 |
| Output | Raster still | Raster still |
| Prompt length | Up to 8 KB | Up to 8 KB |
| Large source stills | No extra scaling | No extra scaling |
| Best for | Product shots and image-to-image edits. | Intricate detail and precise, tightly scoped edits. |

## Which to pick

- Pick ChatGPT Image 2.5 for everyday stills and edits when you want the faster default.
- Pick Sunburst for intricate detail or an edit that must change only what you asked, and accept a longer wait.

ChatGPT Image 2.5 and ChatGPT Image 2.5 Sunburst share the same Image Lab envelope: the four ad sizes (16:9, 1:1, 4:5, 9:16), text-to-image, and edits from one source still. They are quoted the same at the same size and input, so the choice is not cost. ChatGPT Image 2.5 is OpenAI’s default image model. Sunburst is the precision variant: more fidelity on intricate detail and edits scoped closely to the instruction, with longer generation times. Draft on the default, switch to Sunburst for the detailed keeper.

## FAQs

### What is the difference between GPT Image 2.5 and Sunburst?

ChatGPT Image 2.5 is OpenAI’s default image model. Sunburst is its precision variant: more fidelity on intricate detail and edits scoped closely to the instruction, with longer generation times.

### Does Sunburst use more of my plan?

No. In Image Lab both are quoted from the same size price table, so the same aspect ratio and input use the same share of the allowance. Both are included in every Clip Studio plan and use the same monthly generation allowance, and each setup is quoted in Image Lab before you generate. Plan details live on the pricing page.

### Do both support the same sizes and edits?

Yes. Both make the four ad sizes (16:9, 1:1, 4:5, 9:16) and edit from one source still.

### Are ChatGPT Image 2.5 and ChatGPT Image 2.5 Sunburst free?

No. Both run in Image Lab, which is included in every Clip Studio plan, and every plan opens every Image Lab model. Eligible new accounts get one free Topic Short, which is a separate studio.


## Related

- [ChatGPT Image 2.5](https://clipstudio.ai/ai-image-models/gpt-image-2-5.md)
- [ChatGPT Image 2.5 Sunburst](https://clipstudio.ai/ai-image-models/gpt-image-2-5-sunburst.md)
- [Image Lab](https://clipstudio.ai/image-lab.md)
- [All image models](https://clipstudio.ai/ai-image-models.md)
- [Nano Banana 2.1 vs ChatGPT Image 2.5](https://clipstudio.ai/ai-image-models/nano-banana-2-1-vs-gpt-image-2-5.md)
- [ChatGPT Image 2.5 vs Seedream 5 Pro](https://clipstudio.ai/ai-image-models/gpt-image-2-5-vs-seedream-5-pro.md)
- [Ideogram V4.5 vs ChatGPT Image 2.5 for text in images](https://clipstudio.ai/ai-image-models/ideogram-v4-5-vs-gpt-image-2-5.md)
- [Nano Banana 2.1 vs Nano Banana Pro](https://clipstudio.ai/ai-image-models/nano-banana-2-1-vs-nano-banana-pro.md)