# FLUX.3 Klein Base

> Image AI Model by Black Forest Labs — available on Layer

Black Forest Labs' FLUX.3 Klein Base for native 1K to 4K text-to-image.

FLUX.3 Klein Base is the CFG base image model from Black Forest Labs. It generates detailed images from a text prompt at 1K, 2K, or 4K, with up to four outputs and optional prompt expansion. Output aspect ratios include 16:9, 4:3, 1:1, and their portraits. It is the full base checkpoint, for artists who want that control instead of the step-distilled Klein variant.

## Specifications

| Property | Value |
|----------|-------|
| Provider | Black Forest Labs |
| Category | Image |
| Price | 0.9 / generation |
| Aspect Ratios | 1:1, 3:4, 9:16, 4:3, 16:9 |

## Frequently Asked Questions

### How much does FLUX.3 Klein Base cost? Is it free?

Generating assets on Layer requires using Creative Units. This model's current price is 0.9 / generation.

### How does Layer's pricing work?

There are no seat fees, feature gates, or plans on Layer. Instead, our platform uses a consumption based system with Creative Units (CUs) with a flexible monthly subscription. Every generation on Layer (image, video, 3D, or audio) consumes a Creative Unit, and you only pay for what you create.

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