What tasks is nano-banana-2-lite:official suitable for?
It is suitable for 1K visual drafts, product scene-change trials, campaign asset exploration, and reference image editing. It is especially useful for workflows that compare multiple creative directions before deciding on a final solution. If the task primarily evaluates print dimensions or extremely fine textures, consider a higher-resolution model first.
Can Lite generate 2K or 4K images?
Lite is intended for 1K image creation and should not be treated as having 2K or 4K output options. When higher resolution is needed, choose a model that supports the required size, such as nano-banana-pro; changing only the resolution value in the request cannot substitute for model capability.
How do I modify the background with a reference image while preserving the subject?
Use the edit action, place the reference image in image_urls, and clearly state in the prompt which subject characteristics must be preserved and what needs to change in the background. Avoid changing too many attributes at once; complete the scene change first, then check whether the subject's outline, colors, and details have changed in unwanted ways.
Is changing only the aspect ratio enough when generating landscape and portrait images?
You should also adjust the composition description accordingly. For landscape images, emphasize left and right negative space and the expanded environment; for portrait images, emphasize the subject's vertical placement and space at the top. Lite provides seven aspect ratios, so choose a frame that fits the display placement and then describe the element layout, which is more targeted than cropping after generation.
How do I integrate it and obtain generated results?
Send a POST request to /nano-banana/images, specifying the model, action, and prompt; add image_urls when editing. The response provides a task identifier and image_url in data, which can be used for display or download. For asynchronous processing, you can use async and callback_url to arrange result delivery.