Image Generation Model

Imagen 4 Fast

Imagen 4 Fast is a Google image generation model optimized for speed, available via fal with a 10,000 token context window.

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Publisher

Google

TypeImage

Context Window10,000 tokens

ReleasedMay 2025

Price$0.02/image

Provider

Fal

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About Imagen 4 Fast

Fast image generation from Google's Imagen 4

Imagen 4 Fast is an image generation model developed by Google and made available through the fal provider. It is the speed-optimized variant of Google's Imagen 4, released in May 2025, designed to produce images from text prompts with reduced latency compared to the standard Imagen 4 model. The model supports configurable aspect ratios, negative prompts, and seed-based generation for reproducible outputs.

Imagen 4 Fast is suited for workflows where generation speed is a priority, such as rapid prototyping, iterative creative work, or applications requiring high throughput. It accepts text-based prompts along with a negative prompt field to steer outputs away from unwanted content. The seed input allows users to reproduce specific results, making it useful for consistent batch generation or debugging prompt configurations.

Capabilities

What Imagen 4 Fast supports

Text-to-Image Generation

Generates images from natural language text prompts. Supports a context window of up to 10,000 tokens for prompt input.

Negative Prompting

Accepts a negative prompt field to explicitly exclude unwanted elements or styles from generated images.

Aspect Ratio Control

Allows selection of output aspect ratio via a dedicated input, enabling images sized for different use cases and platforms.

Seed-Based Reproducibility

Supports a seed input so users can reproduce identical or near-identical image outputs across multiple generation runs.

Optimized Generation Speed

Operates as the fast variant of Imagen 4, prioritizing lower latency for high-throughput or iterative generation workflows.

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FAQ

Common questions about Imagen 4 Fast

What is Imagen 4 Fast and how does it differ from standard Imagen 4?

Imagen 4 Fast is the speed-optimized variant of Google's Imagen 4 model, released in May 2025. It is designed to generate images with lower latency, making it suitable for workflows that require faster turnaround compared to the full Imagen 4 model.

What is the context window for Imagen 4 Fast?

Imagen 4 Fast supports a context window of 10,000 tokens, which applies to the text prompt input used to guide image generation.

What inputs does Imagen 4 Fast accept?

The model accepts three inputs: a text prompt, a negative prompt to exclude unwanted content, an aspect ratio selector, and a seed value for reproducible outputs.

Is pricing information available for Imagen 4 Fast on MindStudio?

Published pricing for Imagen 4 Fast is not listed in the current metadata. You can check MindStudio or the fal provider directly for current usage costs.

Who publishes Imagen 4 Fast and through which provider is it available?

Imagen 4 Fast is published by Google and is available on MindStudio through the fal provider under the model ID fal-ai/imagen4/preview/fast.

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