---
title: "Imagen 4 Standard, Ultra and Fast — Gemini API: workflow fit, costs and terms"
description: "Checking Imagen 4 references in older Gemini API tutorials."
language: en
canonical: https://bestadultgames.io/en/developers/models/imagen-4-gemini-api
---

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

model-family · Documentation reviewed · 5 October 2026

N

# Imagen 4 Standard, Ultra and Fast — Gemini API

Checking Imagen 4 references in older Gemini API tutorials.

- **Availability**: unavailable
- **Where it runs**: hosted
- **Costs**: Retired Gemini API endpoints; no current production pricing is assigned.
- **Adult content policy**: restricted

Imagen 4 Standard, Ultra and Fast appear in older Gemini API tutorials, but Google lists August 17, 2026 as their shutdown date. That date had passed by this entry’s October 2026 review, so new projects should use a current documented image model. The N tier marks these Gemini API endpoints as unavailable; it says nothing about their image quality. Existing games should keep their assets and generation records while replacements are tested separately, with the revised artwork compared before release. Vertex AI and other Google products need their own lifecycle checks.

## Commercial use & license

These endpoints used proprietary Gemini API terms. Their retirement does not establish rights or availability in other Google products.

## Adult content rules

Google’s referenced 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

The named Gemini API endpoints have passed their published shutdown date. Choose a current documented alternative for new work, and verify the lifecycle separately for any other Google deployment.

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

- [Imagen 4 Gemini API lifecycle notice](https://ai.google.dev/gemini-api/docs/models/imagen)
- [Google generative AI prohibited-use policy](https://policies.google.com/terms/generative-ai/use-policy)

Last checked 5 October 2026.

## Why consider it

- Official documentation identifies the endpoints to replace.
- A historical text-to-image comparison reference.
- The retirement notice helps date older tutorials.

## Tradeoffs to plan for

- The published Gemini API shutdown date has passed.
- Availability in other Google products needs a separate check.
- Unsuitable for a new production API dependency.

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=imagen-4-gemini-api)

## 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