Google DeepMind’s Nano Banana Pro delivers sharper 2K imagery, intelligent 4K scaling, improved text rendering, and enhanced character consistency—offering a major leap in visual quality for creative and API-driven workflows.

Pricing: 18 credits (~$0.09) for 1K/2K and 24 credits (~$0.12) for 4K—flat rate up to 50 % below official pricing. High-tier top-ups (+10% bonus) bring effective pricing down to ~$0.082 for 1K/2K and ~$0.11 for 4K.
Input

A text description of the image you want to generate

0/20000

Click to upload or drag and drop

Supported formats: JPEG, PNG, WEBP Maximum file size: 30MB; Maximum files: 8

Input images to transform or use as reference (supports up to 8 images)

Aspect ratio of the generated image

Resolution of the generated image

Format of the output image

Output
output typeimage
Generated output
Examples

Explore different use cases and parameter configurations

README

Complete guide to using nano-banana-pro

Affordable Nano Banana Pro API For AI Image Generation

4K High-Fidelity Rendering with Nano Banana Pro API
Structured Typography in Google Nano Banana Pro API
Context-Aware Visual Reasoning with Gemini 3.0 Pro Image
Multi-Object Scene Consistency via Google Nano Banana Pro API
Flexible Aspect Ratio Generation with Nano Banana Pro API
Editable Image Pipelines Using Gemini 3 Pro Image Preview
Provider1K–2K Output4K Output
Kie.ai ✔$0.09 / image$0.12 / image
Replicate$0.14 / image$0.24 / image
Fal.ai$0.15 / image$0.30 / image
Google Vertex AI$0.134 / image$0.24 / image
Feature CategoryNano Banana API (Gemini 2.5 Flash Image)Nano Banana Pro API (Gemini 3.0 Pro Image)
Image ResolutionTypically around 1024×1024Supports 1K, 2K, and 4K generation with enhanced scaling and clarity
Detail AccuracySofter textures, occasional distortionsSharper micro-details, cleaner edges, more realistic surfaces
Text RenderingFrequent spacing issues, unstable small textStabilized typography, improved alignment, clearer UI/label readability
Prompt InterpretationMore literal interpretation; limited handling of complex scenesIntent-driven composition with improved scene structure and prompt comprehension
Aspect Ratio ControlLimited ratios; less flexibilityAdaptive layouts for 1:1, 4:5, 3:2, 16:9, 21:9, 9:16 and more
Character ConsistencyIdentity and proportions drift across outputsMore reliable facial features, consistent proportions, better stylistic coherence
Image EditingBasic edits with visible artifactsStronger inpainting/outpainting with scene-aware adjustments and higher fidelity
Physics & Spatial LogicLimited reasoning about motion, weight, or structureBetter physical coherence, object interaction, and real-world grounding
API StabilityGood for drafts and prototypingMore predictable for production pipelines with stable response patterns
Use CasesQuick sketches, simple creative tasksStoryboards, product visuals, UGC workflows, localization, design tooling
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The Nano Banana Pro API was released on November 20, introducing higher-resolution generation (1K, 2K, 4K), improved scene structure, more stable text rendering, and more reliable editing compared with the earlier Nano Banana API based on Gemini 2.5 Flash Image.

Gemini 3.0 Pro Image supports 1K, 2K, and 4K outputs, offering high-fidelity detail, stronger structural consistency, and flexible aspect-ratio options suited for a wide range of applications.

Yes. The Google Nano Banana Pro API supports text-to-image, image-to-image, inpainting, and outpainting, preserving structure, lighting, and material accuracy during complex visual edits.

On Kie.ai, requests to Nano Banana Pro API cost $0.12 per 1K–2K image and $0.24 per 4K image, offering lower pricing compared with Replicate, Fal.ai, and Google Vertex AI.

Nano Banana Pro API preserves facial features, proportions, and spatial relationships across multi-subject scenes, producing stable identity and coherent structure over repeated generations.

The Google Nano Banana Pro API generates clear multilingual text with improved spacing, alignment, and character stability, enabling accurate localization for diagrams, posters, and UI-focused layouts.

Yes. The Kie.ai Playground allows developers to test prompts, adjust aspect ratios, experiment with editing workflows, and preview output patterns generated by Gemini 3.0 Pro Image.