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Models/google/image · text-to-image · image-editingPass-through

Nano Banana Pro

Nano Banana Pro is the higher-end Gemini image lane for polished campaign stills, complex compositions, text rendering, and controlled natural-language revisions. MachGen supports text-to-image and editing with up to 14 ordered input images at 1K, 2K, or 4K across eight aspect ratios including 21:9.

Current MachGen support
Text to ImageImage Editing1K / 2K / 4KUp to 14 input images
Starting at $0.08 $0.067 / image with auto-reload
Auto-reloadRegular
1024p$0.067/image$0.08/image
2048p$0.067/image$0.08/image
4096p$0.12/image$0.144/image
Live public pricebookSee full pricebook
Overview

Nano Banana Pro

Nano Banana Pro is the higher-end Gemini image lane for polished generation and controlled edits. It leans into semantic understanding of complex briefs - closer to studio-ready stills when you need typography, character consistency, and nuanced creative direction.

MachGen supports text-to-image and editing with up to 14 ordered input images at 1K, 2K, or 4K across eight aspect ratios including 21:9.

Model guide

Why choose Nano Banana Pro

Key strengths

  • The premium Gemini image tier for complex briefs, professional assets, and precise creative control.
  • Strong world knowledge, typography, composition, and brand-aware visual consistency.
  • Well suited to multi-step revisions where a polished image must survive targeted changes.

Good fit for

  • Campaign key art, packaging, editorial layouts, infographics, and presentation visuals.
  • Complex scenes with several subjects, text elements, or brand constraints.
  • High-fidelity edits where composition and identity must remain stable.
Supported on MachGen

Inputs and output settings

This table reflects the model routes and controls currently exposed by MachGen.

ModeRequired inputAvailable settings
Text to ImageText promptResolution: 1K, 2K, 4K
Aspect ratio: 16:9, 21:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16
Image EditingText prompt and up to 14 source imagesResolution: 1K, 2K, 4K
Aspect ratio: 16:9, 21:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16
Workflow

Using Nano Banana Pro

  1. Choose a supported generation mode in Playground.
  2. Add the required prompt and source or reference assets.
  3. Select output settings from the controls shown for that mode.
  4. Generate, then inspect the returned asset before reusing the settings through the API.

Practical guidance

  • Describe the subject, action or composition, environment, and visual direction in a clear order.
  • For image editing, state what should change and what should remain unchanged.
Capabilities

What you can make

Text to image

Turn long, structured creative direction into detailed stills with strong prompt adherence and cleaner text rendering.

Image editing

Refine or combine up to 14 ordered input images with natural-language instructions while preserving brand-critical elements.

Output controls

Select 1K, 2K, or 4K output and one of the eight aspect ratios exposed in Playground, including 21:9.

Prompting

Prompting notes

  • Write briefs the way you would brief a designer: audience, composition, typography, and constraints.
  • Put exact copy in quotes when on-image text must be correct.
  • For edits, list non-negotiables first, then the change list.
Best results

How to get better Nano Banana Pro results

  • Structure a complex brief into subject, layout, brand constraints, lighting, materials, and exact copy.
  • State which elements are locked before describing the requested revision.
  • Use one revision goal per turn when preserving faces, logos, or product geometry is critical.
  • Generate at a lower tier while exploring, then use 4K for the approved composition.
Limits

Limits and availability

  • MachGen admits only the modes and settings listed above for this catalog model.
  • Source assets must finish uploading before a request can be submitted.
  • Generated results can vary between requests, including when the same prompt and settings are reused.
  • Nano Banana Pro is pass-through. MachGen sends the request through its upstream provider integration and returns the generated asset.
Learn more

Learn more

For model background, technical details, and architecture, see the official Gemini image generation guide.

Try this model in the MachGen Playground.

Official documentation may describe capabilities or parameters that are not currently exposed by MachGen. Use the Inputs and output settings section above as the source of truth for this page.

Pricing

Nano Banana Pro pricing

See Pricing for currently published MachGen rates. When available, the Playground estimate reflects the selected task and output settings.

On MachGen

Nano Banana Pro on MachGen

Deployment: Pass-through. Nano Banana Pro is pass-through. MachGen sends the request through its upstream provider integration and returns the generated asset.

The Playground and API sections on this page list the inputs and output settings exposed for this model.