Create and refine with nanobanana2.1
A practical guide to prompts, reference images and multi-turn editing.
Start with a clear idea
Describe your subject, composition, lighting and visual style. A focused prompt gives you a useful starting point.
Add a reference
Upload up to four PNG, JPEG or WebP images, each under 5 MB. Only upload images you have permission to use. Prompts and reference images are processed through OpenLux.
Refine in the same conversation
Ask for a specific change, such as a softer background or warmer light. A conversation keeps your previous context for up to four successful turns. Very large image histories may reach the context size limit earlier.
Choose a size
Each generation or edit costs 10 credits at 1K, 15 credits at 2K, or 30 credits at 4K. Failed tasks return the credits used for that task. New accounts receive 20 welcome credits valid for seven days.