AllImageAI
By GoogleRetired

Imagen 4 (Retired)

The API closed on 17 August 2026. Migrate to Nano Banana 2.

Ask AI for better images

Generate better images

Prompt ideas, settings and fixes for this model.

ChatGPTClaudeGeminiAlso copies promptPerplexityMicrosoft CopilotAlso copies prompt

If the prompt isn't filled in, copy and paste it into your chat.

Verified
Original AI-generated editorial artwork for Imagen 4
AI-generated showcase artwork for Imagen 4. Editorial cover, not a benchmark result.
Editorial cover

Model Version

Imagen 4 is retired and cannot generate.

Switch to the replacement model →

Generation is unavailable for this model

Output

Imagen 4

The API closed on 17 August 2026. Migrate to Nano Banana 2.

BalancedUp to 2K1:116:99:164:3

Model showcase

Made with Imagen 4

Curated outputs with their exact prompts and model provenance.

Developer
Google
Model
Imagen 4
Status
Retired
Max Output
2K
Input
Text
Recorded event
May 20, 2025 · Model announced · web access
Last Verified
August 20, 2026
View release history and date evidence ↗

What Is Imagen 4?

Imagen 4 was the workhorse of Google's previous image API, which closed on 17 August 2026. This page stays online so that people still searching the name get an accurate account of where things stand and a migration route, instead of a 404. Its functional successor is the Nano Banana 2 family.

What Is Imagen 4 Best For?

  • Understanding what the model did
  • Mapping an Imagen integration onto Nano Banana

How to Use Imagen 4

  1. Point calls at Nano Banana 2 (gemini-3.1-flash-image).
  2. Imagen's aspect ratio parameter remains compatible on Nano Banana 2.
  3. Where you previously added a separate upscaling step, switch straight to the 4K tier.

Imagen 4 Test Results

Testing in progress

Every model runs the same eight-category prompt set — portrait, product, poster text, anime character, interior, multi-reference, image editing and character consistency — recording generation time, success rate, text accuracy and identity retention. That run has not finished for Imagen 4, so this page shows no scores. We do not publish numbers we have not measured.

Imagen 4 Limitations

  • Retired — cannot generate

Imagen 4 Pricing and Credits

Credits scale with resolution and image count. The Generate button always shows what this run costs.

1K

2 credits / image

2K

3 credits / image

Failed generations cost 0 credits.

Commercial Use and Image Rights

Historical model, documented for reference only.

  • Model used: Imagen 4
  • Model developer: Google
  • The inference route is managed internally and may change without changing the selected model
  • Uploads are sent only to the configured inference service needed to complete the generation
  • You can delete any generation from your history at any time

Frequently Asked Questions

Can I still use Imagen 4?+

No, the upstream API is closed. This site will not silently generate with a different model when you select Imagen.

What should I migrate to?+

Nano Banana 2. It covers the text-to-image capability and adds editing and multi-reference.

Release History and Sources

May 20, 2025 · Model announced · web access

This date applies to the event shown. Later API access, weights and availability on All Image AI may have different dates.

Explore this event on the image model timeline →

AI Image Generator

Create an image, try a new look or transform a photo. Start with the result you want.

Nano Banana 2 Lite

Google

The speed-and-cost tier: drafts, batch exploration and live previews.

From 3 creditsView model

Nano Banana 2

Google

The standard tier: generation, editing and multi-reference in one model.

From 5 creditsView model

Nano Banana Pro

Google

The top tier for complex design, dense typography and product visuals.

From 12 creditsView model

GPT Image 2.5 Flare

OpenAI

Create product photos, posters and image assets with OpenAI’s faster Image 2.5 model.

From 2 creditsView model