MuoGen · AI image model
GPT Image 2.5 Sunburst on MuoGen
GPT Image 2.5 Sunburst exposes 1K, 2K and 4K settings, multiple quality levels, PNG/JPEG/WebP choices and background options in MuoGen.
Prepare an image with quality, format and background controls
Review this model when your brief depends on a selectable file format or background mode. Its catalog includes quality levels beyond low, medium and high; choose deliberately instead of assuming the highest setting is always necessary.
Which settings are available?
| Model identifier | gpt-image-2.5-sunburst |
|---|---|
| Resolutions | 1K, 2K, 4K |
| Aspect ratios by resolution | 1K: 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16 2K: 1:1, 4:3, 3:4, 3:2, 2:3, 16:9, 9:16 4K: 4:3, 3:4, 3:2, 2:3, 16:9, 9:16 |
| Initial settings | 1K, 1:1, high |
| Maximum images per request | 10 |
| Maximum reference images | 16 |
| Size per reference image | 25 MB |
| Total reference image size | 100 MB |
| Maximum prompt length | 32000 characters |
| Selectable quality levels | low, medium, high, xhigh, max |
| Selectable output formats | png, jpeg, webp |
| Background modes | transparent, opaque, auto |
These capabilities describe the settings exposed by MuoGen, not a guarantee of visual quality. Check the model and its settings in the workspace before preparing a request. Catalog checked on .
How do I prepare the prompt and references?
For a product cutout, describe the object, viewing angle, lighting and desired background. Select a compatible output format and inspect the downloaded file if transparency matters to the final composition.
Example brief to adapt
A single green glass bottle viewed straight on, centered with clear edges and soft studio lighting. No extra objects. Prepare it for placement on a separate design background.
This example is a preparation brief, not a generated result or a promise of output. Use only references you have the right to upload.
What limitations should I plan for?
Aspect ratios depend on resolution: the 4K options do not include every ratio offered at 1K and 2K. A transparent background option does not make every file format support transparency; JPEG cannot retain an alpha channel.
Can I generate with this model today?
The catalog and settings are available to explore. Paid generation in the public browser workspaces is not yet open. When enabled, it will require a verified account and paid credits. Preparing a prompt or reading this guide does not start a generation.
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AI image preparation guide · MuoGen model catalog · Availability and frequently asked questions
- GPT Image 2: Prepare an image with selectable formats and references
- Nano Banana Pro: Prepare an image with a broad choice of aspect ratios
- Nano Banana 2.1: Prepare an image brief with references and resolution choices
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