How to Use Nano Banana Pro to Edit Images with Text Prompts
Nano Banana Pro is Google’s Gemini 3-powered image model built for editing existing images with text instructions, rendering legible text, and blending up to several input images. It runs in the Gemini app, Google AI Studio and the Gemini API. This guide covers prompts and limits.
The big step up from the original Nano Banana is text rendering. You can ask for a poster with a specific headline and the spelling comes out correct, which most image models still cannot do.
What is Nano Banana Pro?
Nano Banana Pro is Google’s advanced image generation and editing model released in late 2025, based on Gemini 3 Pro. It supports conversational editing (ask for a change, get a revised image), accurate on-image text, and multi-image composition.
Access: Gemini app for AI Pro/Ultra subscribers, AI Studio for free experimentation, and the Gemini API for developers. Free tiers are rate-limited.
How do you edit an image with text prompts?
Upload the image and describe the change. The model keeps the parts you do not mention.
- Upload your source image in the Gemini app or AI Studio.
- Describe one change at a time for predictable results: “change the background to a night cityscape.”
- For text, quote it exactly and specify placement: “add the headline ‘Summer Sale’ in bold serif across the top.”
- Iterate conversationally. Follow-up prompts refine the same image rather than starting over.
One change per prompt beats a paragraph of instructions. When I asked for three edits at once, one was silently dropped.
How good is the text rendering?
This is the headline feature. Posters, logos with short words, UI mockups and infographics with real labels all come out readable. Spell-checking long passages still fails — keep on-image text to short phrases. For anything longer than a sentence, generate the image and add text in a layout tool.
Can it blend multiple images?
Yes. Upload two or more references and describe the combination — a product shot plus a background, or a face plus a new outfit. Identity preservation is decent for the primary subject, weaker for secondary elements. Results vary with how similar the inputs are in lighting and angle.
Where does Nano Banana Pro fall short?
Photorealistic human edits can trip up: skin texture sometimes looks plasticky, and hands remain risky. Very high resolutions take longer and cost more. And because it is tied to Google’s ecosystem, you do not get the fine control of a desktop editor like Photoshop.
Who should use it?
Marketers making ad variants, designers doing quick mockups, and social creators who need branded visuals with correct text. If you need pixel-perfect retouching, keep your desktop editor — this is for fast iteration, not precision surgery.
Quick Summary
- Nano Banana Pro is Google’s Gemini 3-based image editing model with accurate text rendering.
- Edit conversationally, one change per prompt, in the Gemini app or AI Studio.
- Quote on-image text exactly and keep it short for reliable spelling.
- Supports multi-image blending, with strong identity preservation for the main subject.
- Weak on photoreal skin, hands and very long on-image text.
