imagen 4 fast

Closed weights Google August 2025

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
Google
Organisation type
Industry
Country
United States of America
Published
15 August 2025

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Image generation
Task
Image generation, Text-to-image

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Training data
tokens

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
API access
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Unknown

Sources

Where this record came from and when it was last checked.

Reference
Announcing Imagen 4 Fast and the general availability of the Imagen 4 family in the Gemini API
Last updated
28 November 2025

What the numbers mean

Where it came from

imagen 4 fast was published by Google, in United States of America, in August 2025. industry is the category the publisher falls under.

It works in Image generation, and is recorded as doing image generation, Text-to-image.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Answers

imagen 4 fast — common questions

01

How many parameters does imagen 4 fast have?

No parameter count has been published for imagen 4 fast, which is why no memory or speed figure appears on this page.

02

Who created imagen 4 fast?

imagen 4 fast was published by Google, based in United States of America, categorised as industry.

03

When was imagen 4 fast released?

imagen 4 fast was published in August 2025.

04

What is imagen 4 fast used for?

imagen 4 fast works in Image generation, and is recorded as handling image generation, Text-to-image. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

05

What GPU do I need to run imagen 4 fast?

None. imagen 4 fast is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

06

Is imagen 4 fast open source?

No. imagen 4 fast has not had its weights published, so it exists only as a service controlled by its owner.

Source

Original publication

Record last updated 28 November 2025

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.