---
title: "Gemini 3 Pro Image / Nano Banana Pro: workflow fit, costs and terms"
description: "Policy-permitted complex compositions and art guided by reference images."
language: en
canonical: https://bestadultgames.io/en/developers/models/gemini-3-pro-image
---

[Developers](https://bestadultgames.io/en/developers.md) / [image models](https://bestadultgames.io/en/developers/models?category=image)

model · Documentation reviewed · 5 October 2026

A

# Gemini 3 Pro Image / Nano Banana Pro

Policy-permitted complex compositions and art guided by reference images.

- **Availability**: available
- **Where it runs**: hosted
- **Costs**: Subscription, credits or metered API usage; check the plan you intend to use.
- **Adult content policy**: restricted

Gemini 3 Pro Image is worth comparing with a suitable Flash image model for complex, policy-permitted game art: several subjects, reference sheets and precise composition instructions. Google positions it for professional asset production, with reference-guided editing and higher-resolution output options. Choose between them by the usable assets and correction time your brief produces, rather than resolution alone. Check the exact endpoint and reference limits before building around the Nano Banana Pro name. Google’s hosted content rules, search grounding and watermarks all affect the workflow. Keep important game UI text editable, even if generated signage looks convincing.

## Commercial use & license

Proprietary Google service/API terms; check the terms for your consumer product or developer endpoint.

## Adult content rules

Google’s policy restricts sexually explicit content, including content created for pornography or sexual gratification.

[Read the policy](https://policies.google.com/terms/generative-ai/use-policy)

## What you need

Account or API access, rights to uploaded references, and a process for reviewing exports.

Ranks are recommendations for the task described, based on reviewed documentation. Model ranks cover non-explicit development work. We have not run practical benchmarks. Check content policies and commercial terms separately. [How the ranks work](https://bestadultgames.io/en/developers/methodology.md)

### Sources & further reading

- [Official Gemini Pro Image model reference](https://ai.google.dev/gemini-api/docs/models/gemini-3-pro-image)
- [Gemini image-generation guide](https://ai.google.dev/gemini-api/docs/image-generation)
- [Google generative AI prohibited-use policy](https://policies.google.com/terms/generative-ai/use-policy)

Last checked 5 October 2026.

## Why consider it

- Focus on professional image generation and editing.
- Reference-guided generation and editing.
- Higher-resolution output options.

## Tradeoffs to plan for

- Hosted availability and pricing vary.
- Reference and style-input limits differ by variant.
- Google’s policy restricts sexually explicit content.

The tier reflects documented fit for the workflow described here and availability. No numeric score or hands-on performance results are provided.

[Compare with other models](https://bestadultgames.io/en/developers/compare?model=gemini-3-pro-image)

## Related guides

AI images · Beginner · 5 min read

### [Choose an image model by the asset you need to ship](https://bestadultgames.io/en/developers/guides/choose-image-model-for-game-assets.md)

Choose image models by asset fit, correction work, repeatability, compute and rights before committing a full cast.

Read the guide → A reading priority

AI images · Intermediate · 6 min read

### [Keep AI character art consistent through references and corrections](https://bestadultgames.io/en/developers/guides/ai-character-reference-workflow.md)

Build approved character references, catch identity drift and review expressions, outfits and exported sprites as one consistent set.

Read the guide → A reading priority