Nano Banana Image Generator
A balanced, general-purpose model for fast creation. Great for concepts, illustrations, and stylized outputs.
Optimized for speed-first generation and iteration; supports multi-image blending, character consistency, and natural-language editing. Output images include a SynthID watermark.
Model positioning
Nano Banana (Gemini 2.5 Flash Image): fast and reliable general-purpose text-to-image
Built for low latency and high throughput, balancing quality and speed for high-frequency batch generation and rapid iteration.
Low latency / high throughput
Speed- and cost-optimized for frequent generation.
Multi-image blending
Merge multiple reference images into one output.
Character consistency
Keep the same character stable across multiple images.
Natural-language editing
Modify parts of an image using text instructions.
Prompt category examples (with official samples)
Prompt templates designed for fast generation and editing.
1) Fast concept
Template: subject + scene + style + lighting + details (keep it short and clear).
2) Character consistency
Template: character appearance + outfit + camera/angle + fixed style (add reference images if needed).
3) Natural-language editing
Template: describe the part to change + 'keep the rest unchanged'.
4) Multi-image blending
Template: use image A as subject, image B as background, and image C for style.
Nano Banana prompt best practices (results-oriented)
When speed comes first, concise and clear prompts are more stable.
Practice 1: Use one sentence to set the core
Define subject and scene first, then add lighting/camera/style.
- Subject: who/what (count, pose, outfit)
- Scene: location, time, weather
- Style and camera: photo/illustration, focal length, depth of field
Practice 2: Make edit instructions specific
State exactly what to change and what to keep.
- Example: change the sky to dusk, keep the subject and foreground
- Example: change the clothing color to dark blue, keep everything else
Practice 3: Lock key traits for character consistency
Fix hair, outfit, camera, and style; add reference images if needed.
- Lock key traits (hair color, accessories, outfit style)
- Keep the same camera language and visual style
Practice 4: Assign roles in multi-image blending
Define each reference image's role (subject/background/style).
- Image A = subject, image B = background, image C = style
- Prioritize the subject source to avoid drift
Practice 5: Switch to Pro for complex text
Complex layouts and high-fidelity text are better suited for Nano Banana Pro.
- Short headlines are fine in Nano Banana
- Long text and layouts are better in Pro
When is Nano Banana the better choice?
Best for fast, controllable generation with frequent iteration.
Rapid concept exploration
Generate lots of options in a short time.
- Great for ideation
- Quickly pick a direction
Batch asset generation
Quickly create social images, backgrounds, and assets.
- Cost-friendly
- Good for high-frequency needs
Light edits and replacements
Make simple edits and style tweaks on existing images.
- Direct text-based edits
- Reduce rework cost
Multi-image blending experiments
Quickly combine people, products, and scenes.
- More flexible asset composition
- Improve production efficiency
FAQ
Nano Banana FAQ
Common questions about Nano Banana.
Get started
Generate your next image with Nano Banana
Define subject and scene clearly to produce more options faster.
References and sources (for verification and deeper reading)
Features and examples on this page reference official documentation and release notes.
Google Developers Blog: Gemini 2.5 Flash Image (nano-banana)
Official announcement and feature highlights.
Google AI for Developers: Nano Banana (Image Generation)
Model overview and SynthID watermark information.