No longer available
The publisher shut this model down on August 17, 2026. It can no longer be used from its own API. Recommended replacement: gemini-nano-banana-2.1. Publisher notice
- Pricing
- Not published
- Released
- 1y ago
Cost
The fastest and lowest cost Imagen 4 model, for high-volume image generation. Shut down in the Gemini API and replaced by Nano Banana 2.1.
How it compares
Level
LightweightThe lab's smallest, cheapest and lowest-latency hosted line, built for high volume and simple tasks.
Lightweight models from other labs
Vs. your stack
Add the models you use to see how this one compares.
Sign inText provenance
Gemini app/webGoogle SynthID text watermarking
Google DeepMind says text generated in the Gemini app and web experience is watermarked with SynthID by adjusting token probabilities.
Official explanationFrequently asked questions
Quality and benchmarks
The closest alternatives are Seedream 4.0 by ByteDance, Qwen-Image-Edit by Qwen, and FLUX.2 Flex by Black Forest Labs. They are matched on model kind and release date, with no comparable price.
Seedream 4.0Imagen 4 Fast vs Seedream 4.0Qwen-Image-EditImagen 4 Fast vs Qwen-Image-EditFLUX.2 FlexImagen 4 Fast vs FLUX.2 Flex
Qwen-Image-2.1. It is the highest-ranked open-weight model on Arena Text to Image at rank 21, while Imagen 4 Fast itself is closed.
Versions and lineage
Yes, Nano Banana 2.1 is the publisher's recommended replacement. Imagen 4 Fast was retired on August 17, 2026.
Licensing and access
No. Imagen 4 Fast is closed and uses a proprietary license.
Basics
Imagen 4 Fast was made by Google DeepMind and released on August 15, 2025.
Media
No. Image editing (image input) is not listed for Imagen 4 Fast.
Generated from Vertical Tabs data, updated November 5, 2026.
Discussion
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