MuoGen · AI image model
Nano Banana Pro on MuoGen
Nano Banana Pro offers 1K, 2K and 4K image settings, multiple aspect ratios and image references in the MuoGen catalog.
Prepare an image with a broad choice of aspect ratios
Review this model when the composition needs a wide or tall format beyond the common square, portrait and landscape ratios. The catalog includes 1:4, 1:8, 4:1 and 8:1 choices as well as common formats.
Which settings are available?
| Model identifier | gemini-3-pro-image |
|---|---|
| Resolutions | 1K, 2K, 4K |
| Aspect ratios by resolution | 1K: 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9 2K: 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9 4K: 1:1, 1:4, 1:8, 2:3, 3:2, 3:4, 4:1, 4:3, 4:5, 5:4, 8:1, 9:16, 16:9, 21:9 |
| Initial settings | 1K, 1:1 |
| Maximum images per request | 1 |
| Maximum reference images | 14 |
| Size per reference image | 25 MB |
| Total reference image size | 100 MB |
| Maximum prompt length | 30000 characters |
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 banner, define the subject’s position and the space the layout should reserve. Choose the ratio before describing the framing. Use references to show the intended subject or style, rather than expecting a reference to define every layout detail.
Example brief to adapt
A mountain landscape at dawn for a wide banner. Place the main peak in the left third, with a calm open sky on the right for a later text overlay. Soft natural light.
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?
The current catalog returns one image per request for this model and does not expose selectable quality, file format or transparent-background settings. Those options should not be inferred from another image model’s interface.
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.
Explore settings for Nano Banana Pro
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AI image preparation guide · MuoGen model catalog · Availability and frequently asked questions
- GPT Image 2.5 Sunburst: Prepare an image with quality, format and background controls
- GPT Image 2: Prepare an image with selectable formats and references
- Nano Banana 2.1: Prepare an image brief with references and resolution choices
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