Nano Banana Pro API

Built on Gemini 3 Pro Image (preview), Nano Banana Pro API supports text and image inputs for high-quality image generation and editing, with Google Search grounding for more accurate visuals.

Prompt

Use my portrait as the main face and identity. Keep my facial features, skin tone and expression. Recreate the composition and outfit from the reference: a medieval princess knight with silver floral armor on the shoulder, decorated with soft pink roses, wearing a layered pastel pink ruffled dress, clean white background, soft natural lighting, ultra high definition, fashion editorial style.

Parameters

size

auto

quality

image_urls

https://pub-ebac96ac8a0c4c789f53c7470fd2339c.r2.dev/IMG_0143.PNG,https://pub-ebac96ac8a0c4c789f53c7470fd2339c.r2.dev/973e1feb1bbd0765727cdae88707d74f.jpg

Estimated Cost

3.1 Credits

Sample Result

Prompt

394 (suggested: 2,000)

Input Images

Upload up to 10 images (max 20MB each)

Click to upload or drag and drop

Supported formats: JPEG, JPG, PNG, WEBP
Maximum file size: 20MB; Maximum files: 10

Size

Quality

History

Max 20 items

0 running · 0 completed

Your generation history will appear here

Nano Banana Pro API for Studio-Quality Images

Use Nano Banana Pro API on evolink.ai to turn prompts and reference photos into high-resolution, brand-ready images for social media, ads, and product pages. It supports text-to-image, image editing, and multi-image composition in one workflow.

What Nano Banana Pro API can do for you

Turn text into ready-to-post images

Describe the scene you want and the Nano Banana Pro API generates polished images that match your caption, mood, and format. From square posts to story covers and ad banners, you can ship 1K, 2K, or 4K assets that stay crisp on high-resolution screens while remaining fast enough for everyday content production.

Generate your first image

Edit photos with natural language

Upload a photo, describe the change, and get a refined version without complex editing tools. Remove objects, adjust lighting, replace backgrounds, or reframe shots for each platform so one photo becomes a full set of tailored assets.

Try natural language editing

Fuse multiple images into one story

Combine multiple reference images into a single, coherent scene while keeping key people, products, and objects consistent. This is ideal for lookbooks, product carousels, and storytelling posts that need continuity across a campaign.

Blend your references

Why choose Nano Banana Pro API on evolink.ai

Nano Banana Pro API focuses on production-ready visuals for social, marketing, and product teams. You get Gemini 3–based image generation, editing, and text rendering without managing GPUs or complex infrastructure.

Optimized for social-first workflows

Tuned for day-to-day social and marketing work like product shots, UGC-style images, covers, and performance creatives, so teams can move from idea to test-ready visuals fast.

Built on Gemini 3 image generation

Built on Gemini 3 Pro Image (preview), supporting text and image inputs with image outputs, Google Search grounding, and multi-image prompts (up to 14 images per request).

Less infrastructure, more content

Through evolink.ai, you can use the API without handling GPUs or scaling, so teams can ship creative faster and focus on content quality.

How to use Nano Banana Pro API in your day-to-day

Whether you are a solo creator, a marketing team, or an app builder, Nano Banana Pro API fits into your existing tools with a few simple steps.

Connect your evolink.ai account

Create or log in to your evolink.ai account, enable Nano Banana Pro API, and copy your secure key so your tools or apps can send image requests on your behalf.

Describe the visual you need

In your dashboard or app, send a prompt to the image generation endpoint, attach optional reference images, and set aspect ratio and resolution so the output fits your channel.

Review, download, and publish

Nano Banana Pro API returns image links or files you can preview, refine with another prompt, and then download or push into social schedulers, CMS tools, or internal asset libraries.

View Nano Banana Pro API tutorial

Nano Banana Pro API features built for modern content teams

Gemini 3 Pro Image capabilities, simplified.

Quality

Studio-quality images

Generate sharp 1K-4K images with flexible aspect ratios, covering posts, banners, and hero visuals in a single workflow.

Text rendering

Clear, readable text in images

Produce high-quality long text inside images for posters, menus, and ads where wording must stay legible and on brand.

Consistency

Multi-image fusion and consistency

Use text plus multiple image inputs to guide edits and variations, while preserving context and visual consistency across a series.

Workflow

Conversational, multi-step editing

Iterate through multi-turn edits to adjust composition, color, and copy, so each revision builds on the last.

Intelligence

Real-world knowledge for accurate scenes

Leverage Gemini's world knowledge and reasoning to keep scenes logical for educational, historical, or data-driven visuals.

Trust & safety

Safety filters and controls

Updated safety filters and policy controls help generate people and sensitive content more responsibly, reducing harmful outputs.

Nano Banana Pro API FAQ

Everything you need to know about the product and billing.

Nano Banana Pro API is an AI image generation and editing API built on Gemini 3 image models. It turns text into images, edits existing photos with natural language, and combines multiple references into one coherent scene. Through evolink.ai, the same capabilities are exposed in a creator-friendly API so both no-code teams and developers can integrate studio-quality visuals into daily workflows.

You can send text prompts, optional reference images, or both. This lets you do text-to-image generation, image editing, and multi-image composition for consistent campaigns and product assets.

Yes. Nano Banana Pro API is built for everyday creators who think in ideas, not layers. You can start with plain-language prompts like "a cozy flat lay for my skincare brand in soft pink lighting" and get polished shots without design jargon. If you use a tool or dashboard built on evolink.ai, you can also choose templates, type a caption-style prompt, and optionally upload a logo or reference image.

Nano Banana Pro API supports 1K, 2K, and 4K outputs with common aspect ratios such as 1:1, 4:5, 9:16, and 16:9. That means you can target square feeds, vertical stories, and wide hero banners without stretching or cropping. The API returns standard image formats like PNG or JPEG, typically as links or base64 data.

Yes. Nano Banana Pro is designed to generate clear text inside images, which is valuable for posters, menus, product callouts, and diagram-style creative where wording must remain legible.

Gemini 3–based image generation uses real-world knowledge to keep scenes logical, which helps for accurate infographics or historically consistent scenes. As with any AI system, you should still review outputs for factual accuracy before publishing.

Images generated with Gemini include SynthID watermarking for content provenance. This helps teams verify AI-assisted content and maintain transparency in brand workflows.

You authenticate with a Bearer API key and send requests to the image generation endpoint. Requests are processed asynchronously, so you create a task and then query its status to retrieve the final image.

Pricing is usage-based and typically varies by resolution and quality tier. Check the evolink.ai pricing or billing page for the most current rates and available credits.

API Reference

Select endpoint

Authentication

All APIs require Bearer Token authentication.

Header

Authorization: 
Bearer YOUR_API_KEY

Get API Key

POST

/v1/images/generations

Generate Image

Create an image generation task using text prompts or reference images. Supports text-to-image, image-to-image, and image editing modes.

Asynchronous processing mode, use the returned task ID to .

Generated image links are valid for 24 hours, please save them promptly.

Note: Input/reference images are FREE with Nano Banana Pro!

Request Parameters

modelstringRequiredDefault: nano-banana-2-lite

Image generation model name.

Value	Description
nano-banana-2-lite	Cost-effective option (Nano Banana Pro)

Examplenano-banana-2-lite

promptstringRequired

Prompt describing the image to be generated or how to edit the input image.

Notes

Limited to 2000 tokens

ExampleA cat playing in the grass

sizestringOptionalDefault: auto

Aspect ratio of the generated image.

Value	Description
auto	Auto detect
1:1	Square (1:1)
2:3	Portrait (2:3)
3:2	Landscape (3:2)
3:4	Portrait (3:4)
4:3	Landscape (4:3)
4:5	Portrait (4:5)
5:4	Landscape (5:4)
9:16	Vertical (9:16)
16:9	Horizontal (16:9)
21:9	Ultra-wide (21:9)

Example'16:9'

qualitystringOptionalDefault: 2K

Quality of the generated image.

Value	Description
1K	Standard quality
2K	High quality (default)
4K	Ultra quality (1.1x cost)

Notes

4K quality costs 1.1x base price (3.41 Credits vs 3.1 Credits)

Example2K

image_urlsarrayOptional

Reference image URL list for image-to-image and image editing functions. FREE with Nano Banana Pro!

Notes

Max 10 images per request
Max size: 10MB per image
Formats: .jpeg, .jpg, .png, .webp
URLs must be directly accessible by the server
Maximum 5 real person images
No additional charges for input images

Examplehttps://example.com/image1.png

callback_urlstringOptional

HTTPS callback address after task completion.

Notes

Triggered on completion, failure, or cancellation
Sent after billing confirmation
HTTPS only, no internal IPs
Max length: 2048 chars
Timeout: 10s, Max 3 retries

Examplehttps://your-domain.com/webhooks/image-task-completed

Request Example

{
  "model": "nano-banana-2-lite",
  "prompt": "A cat playing on the grass",
  "size": "16:9",
  "quality": "2K"
}

Response Example

{
  "created": 1757165031,
  "id": "task-unified-1757165031-uyujaw3d",
  "model": "nano-banana-2-lite",
  "object": "image.generation.task",
  "progress": 0,
  "status": "pending",
  "task_info": {
    "can_cancel": true,
    "estimated_time": 45
  },
  "type": "image",
  "usage": {
    "billing_rule": "per_call",
    "credits_reserved": 3.1,
    "user_group": "default"
  }
}