Gemini 3 Pro Image (Nano Banana Pro)

Gemini 3 Pro Image (Nano Banana Pro), is designed to tackle the most challenging image generation by incorporating state-of-the-art reasoning capabilities. It's the best model for complex and multi-turn image generation and editing, having improved accuracy and enhanced image quality.

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Model ID gemini-3-pro-image
Supported inputs & outputs
  • Inputs:
    Text, Images
  • Outputs:
    Text and image
Token limits
  • Maximum input tokens: 65,536
  • Maximum output tokens: 32,768
Capabilities
Consumption options
See Consumption options for more information.
Input size limit 500 MB
Technical specifications
Images
  • Maximum images per prompt: 14
  • Maximum file size per file for inline data or direct uploads through the console: 7 MB
  • Maximum file size per file from Google Cloud Storage: 30 MB
  • Maximum number of output images per prompt: Limited to 32,768 output tokens
  • Supported aspect ratios: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 9:16
  • Supported resolutions: 1K, 2K, 4K (Preview)
  • Supported MIME types:
    image/png, image/jpeg, image/webp, image/heic, image/heif
Documents
  • Maximum number of files per prompt: As supported by the 65,536 token context window
  • Maximum number of pages per file: As supported by the 65,536 token context window
  • Maximum file size per file: 50 MB (API and Cloud Storage imports) or 7 MB (direct upload through Google Cloud console)
  • Supported MIME types:
    application/pdf, text/plain
Parameter defaults
  • Temperature: 0.0-2.0
  • topP: 0.0-1.0 (default 0.95)
  • topK: 64 (fixed)
  • candidateCount: 1
Supported regions

Model availability
  • Global
    • global
See Deployments and endpoints for more information.
Knowledge cutoff date January 2025
Versions
  • gemini-3-pro-image
    • Launch stage: GA
    • Release date: May 28, 2026
Security controls
Online prediction
  • Data residency
  • CMEK
  • VPC-SC
  • AXT
Batch inference
  • Data residency
  • CMEK
  • VPC-SC
  • AXT
See Security controls for more information.
Supported languages See Supported languages.
Pricing See Pricing.

Image generation specifications

Gemini 3 Pro Image consumes 560 input image tokens per input image. Gemini 3 Pro Image consumes 1120 tokens for 1K (roughly 1MP) and 2K (roughly 4MP), and 2000 tokens for 4K (roughly 16MP). Additional charges for input and output tokens for other modalities such as text and video also apply. Refer to the pricing page for the latest.

For more information about image generation using Gemini 3 Pro Image, see Generate and edit images with Gemini.

Preview features

The following features remain in Preview on this GA endpoint:

  • 4K image outputs