Gemini 3 Pro Image (Nano Banana Pro) API

google/gemini-3-pro-image
Built on the powerful Gemini 3 Pro architecture, it combines advanced reasoning, real-world knowledge grounding, and multimodal capabilities to deliver high-fidelity, visually striking images from complex text prompts.
Context
66K tokens
Input
$2.6 / 1M tokens
Output
$15.6 / 1M tokens
Released
Feb 23, 2026

Overview

Gemini 3 Pro Image API Overview

Nano Banana Pro is designed for professional creators needing fast, high-quality visual content with deep reasoning and real-world knowledge integration. It supports generation of images up to 4K resolution with advanced control over effects like lighting, focus, and color grading.

Technical Specifications

  • Base Architecture: Gemini 3 Pro / GEMPIX 2 architecture, a high-capacity multimodal image + text model‍
  • Parameters: Scalable, around 8 billion in enterprise configurations.‍
  • Resolution Support: Native 1K, 2K, and up to 4K output‍
  • Input Types: Text prompts.‍

Performance Benchmarks

Pro demonstrates substantial improvements in resolution clarity, artifact reduction, and physical accuracy versus predecessor Nano Banana (Gemini 2.5 Flash Image). It outperforms competitors in human-rated benchmarks focusing on prompt alignment, overall preference, and visual quality.

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Image Generation at Professional Level

Gemini 3 Pro Image API focuses on creating original images from textual descriptions and contextual instructions. It is optimized for realism, composition accuracy, and reliable text rendering within images. The model understands complex prompts and translates them into visually consistent outputs that align with brand, style, and functional requirements.

From Concept to Visual in a Single Prompt

It transforms detailed text descriptions into complete, polished visuals. It supports a wide range of styles, from photorealistic scenes to clean, design-oriented graphics, making it suitable for marketing, UI concepts, and editorial illustrations.

Context-Aware Visual Reasoning

The model understands how objects, environments, and text interact in the real world. This enables the creation of images that feel logical and coherent, whether the output is a product mockup, an infographic, or a conceptual illustration.

Intelligent Image Refinement

Gemini 3 Pro Image Edit API is designed for controlled image modification. Instead of regenerating visuals from scratch, it allows users to edit existing images using natural language. This includes adjusting visual elements, correcting details, replacing objects, refining typography, or modifying lighting and perspective while preserving the original structure of the image.

Natural-Language Editing Without Complexity

The model allows users to modify images by simply describing the desired change. Lighting adjustments, background replacements, object edits, and stylistic refinements can be performed without traditional design tools, dramatically reducing iteration time.

Structural Preservation and Detail Control

Unlike full regeneration, Image Edit maintains the original layout and composition of the source image. This makes it ideal for fine-tuning visuals, correcting mistakes, or adapting existing assets for new contexts while keeping visual identity intact.

Nano Banana Pro API Pricing

  • $0.195 per generation

Use Cases

Design and Creative Teams

Designers can generate initial concepts with Gemini 3 Pro Image and then refine them using Image Edit, creating a smooth end-to-end creative workflow entirely powered by AI.

Marketing and Content Production

Marketing teams can rapidly produce campaign visuals, adjust messaging or branding elements, and localize images without rebuilding assets from scratch.

Product, UX, and Interface Design

Both APIs are well suited for UI mockups, product visuals, and layout experiments where clarity, consistency, and readable text are essential.

Enterprise and Developer Workflows

Developers can integrate Gemini 3 Pro Image and Image Edit into scalable pipelines for automated visual generation, asset updates, and content personalization.

Comparison with Other Models

vs GPT-Image-1: Gemini 3 Pro Image Edit excels in specialized image-to-image editing with advanced control over lighting, focus, and localized edits, while GPT-Image-1 offers strong multimodal integration for iterative generation and editing but with slightly less granular editing precision.

vs FLUX.1 Kontext: Gemini 3 Pro provides more comprehensive control over camera angles, lighting, and high-resolution output, positioning it as a superior choice for studio-quality image editing and complex image synthesis.

vs Nano Banana (Gemini 2.5 Flash Image):  Gemini 3 Pro advances on this foundation with 4K native output, improved real-world knowledge integration, and enhanced precision in localized edits and text rendering, making it the more professional-grade model.

Uptime and performance

  • Uptime (7d): 100%

Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.

Use cases

  • Product photography and e-commerce image generation
  • Marketing content (ads, banners, social media visuals)
  • Brand storyboards and campaign visuals requiring consistent character/art style
  • Apparel visualization and creative prototyping
  • Multimodal scene generation and object blending
  • Professional photography retouching and enhancement

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How to use Gemini 3 Pro Image (Nano Banana Pro) API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to google/gemini-3-pro-image.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "google/gemini-3-pro-image",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "google/gemini-3-pro-image",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-3-pro-image","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Gemini 3 Pro Image (Nano Banana Pro) API Pricing

TypePrice
Input
$2.6 / 1M tokens
Output
$15.6 / 1M tokens
Cached input
$0.26 / 1M tokens

Gemini 3 Pro Image (Nano Banana Pro) vs other models

ModelInputOutputContextBest for
$2.6 / 1M tokens
$15.6 / 1M tokens
66K tokens
Reasoning + agents
$6.5 / 1M tokens
$39 / 1M tokens
1M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$1.95 / 1M tokens
$11.7 / 1M tokens
1M tokens
Reasoning + agents

Frequently asked questions

Gemini 3 Pro Image (Nano Banana Pro) has a 65,536 tokens context window and can return up to 32,768 tokens.

Gemini 3 Pro Image (Nano Banana Pro) takes image, text as input and returns text.

Use google/gemini-3-pro-image as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

Gemini 3 Pro Image (Nano Banana Pro) is priced at input $2.6 / 1M tokens, output $15.6 / 1M tokens, cached input $0.26 / 1M tokens.

Yes, Gemini 3 Pro Image (Nano Banana Pro) can stream responses as they are generated.

Yes, Gemini 3 Pro Image (Nano Banana Pro) accepts image input alongside text.

Gemini 3 Pro Image (Nano Banana Pro) was built by Google.

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