How many reference images can I upload?

Nano Banana 2 Lite accepts multiple reference images per request, but per official model guidance Lite is not optimized for many references at once — one primary reference image gives the most reliable result.

Can I chain several edits on the same image?

You can, but Lite is not optimized for long multi-turn sequential editing. For best results, keep edit chains short and re-upload the latest result as a fresh reference if you need several rounds.

Why did the background change when I only asked to edit the subject?

Broad prompts can affect more of the image than intended. Be explicit about what should stay the same — name the background, the product or the pose you want preserved.

Can I use a photo of another person as a reference?

Only upload identifiable photos of people with their explicit consent, and only images you own the rights to edit.

What if my reference image upload fails?

See Troubleshooting for upload failure causes and fixes — file size, format and connection issues are the most common causes.

Reference Image Editing with Nano Banana 2 Lite

Use source images with Nano Banana 2 Lite; assign each reference a role, preserve subjects, adjust backgrounds and iterate safely.

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When to Use Reference Images

Use a reference image whenever you need to preserve something specific — a product, a face, a layout — while changing everything else. If you are starting from nothing, text-to-image alone is usually simpler and faster.

Assign Each Image a Role

Tell your prompt what the uploaded image is for — the same photo can play different roles.

Product

Keep the product exactly as-is and change everything around it — background, angle context, scene.

Style

Use the image as a style reference: match its color grade, lighting mood or texture in a new composition.

Background

Treat the image as the backdrop and describe what should be placed or changed within it.

Composition

Reuse the framing and layout of the source image while changing the subject or details.

Source Image Quality Checklist

A clean source image is the single biggest factor in a clean edit.

Sharp and well-lit

Blurry, dark or heavily compressed source images carry those flaws into the result.

Subject clearly visible

Avoid heavy occlusion or extreme crops — the model edits what it can clearly see.

One clear subject

Busy source images with multiple competing subjects make it harder to target a specific edit.

Reasonable file size

Very large uploads take longer to process; resize oversized photos before uploading if you can.

Common Failure Modes

The most common failure mode is asking for too many changes at once — a new background, a new subject pose and a style change in one prompt. Split large edits into smaller sequential prompts instead. Also note the official model guidance: Lite is not optimized for multiple reference images or long multi-turn sequential editing chains — keep to one primary reference image and a small number of edit steps for the most reliable results. To preserve an identity or product exactly, name it explicitly in the prompt ("keep the same water bottle, only change the background") rather than assuming it will be preserved by default.

Ready to try it? Open Image to Image to upload a reference photo, or use the full editing toolkit in AI Image Editor. If something doesn't work as expected, see Troubleshooting.

Sources:Nano Banana image generation docs

Last reviewed: 2026-07-05

Rights & privacy checklist: only upload images you own or have explicit rights to edit; do not upload identifiable photos of other people without their consent; generated results are processed to produce your output and are not published anywhere by us.

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