Imagen 4 Fast
Google's efficiency tier for image generation, aimed at high-volume pipelines where throughput matters more than the last increment of quality. Fine for thumbnails, placeholders, and drafts; step up to the Gemini image models when typography or compositing is the point.
Pricing checked against provider documentation on . How we verify
imagen-4.0-fast-generate-001 Price
$0.02
/ image
Context
—
not token-based
Max output
—
varies
Pricing caveat: 1K resolution.
Where Imagen 4 Fast fits
- High-volume thumbnails
- Draft and placeholder imagery
- Rapid prompt iteration
- Catalogue and listing images
Specifications
- API model ID
- imagen-4.0-fast-generate-001
- Provider
- Model family
- Imagen 4
- Released
- August 2025
- Knowledge cutoff
- —
- Context window
- —
- Max output
- —
- Native reasoning
- No
- Relative latency
- low
- Input modalities
- text
- Output modalities
- image
- Open weights
- No
- Cached input
- —
- Batch discount
- —
Frequently asked
How much does Imagen 4 Fast cost?
Imagen 4 Fast is billed at $0.02 / image.
What is Imagen 4 Fast's context window?
Context limits for Imagen 4 Fast depend on the input format rather than a token count.
Is Imagen 4 Fast a reasoning model?
No. Imagen 4 Fast answers directly without a native thinking phase, which keeps latency and cost predictable.
What is Imagen 4 Fast best for?
Cheapest speed-first generation. Google's efficiency tier for image generation, aimed at high-volume pipelines where throughput matters more than the last increment of quality. Fine for thumbnails, placeholders, and drafts; step up to the Gemini image models when typography or compositing is the point.