What is FLUX?
FLUX is a family of high-quality text-to-image models from Black Forest Labs, known for strong prompt adherence and detail, with open-weight variants and a commercial API. It's widely integrated into other AI image tools as a top-tier model option.
Key features
- High prompt-adherence text-to-image
- Open-weight model variants
- Commercial API for production use
- Excellent detail and text rendering
- Integrated across many image apps
How to get started
- Use FLUX via a tool that offers it, or the BFL API
- Write a detailed prompt
- Generate and refine
- Self-host the open weights for full control
Use cases
- High-quality image generation
- Building image features on the API
- Self-hosted generation pipelines
- Detailed art and product visuals
FLUX vs. alternatives
| Tool | How it compares |
|---|---|
| FLUX | State-of-the-art open image models from Black Forest Labs. |
| Stable Diffusion | The other leading open image model ecosystem. |
| Midjourney | Closed but best-in-class house aesthetic. |
FAQ
Is FLUX free to use?
FLUX's plans: Open weights, plus paid API access. Pricing and free-tier limits change over time, so check the official site above for the latest details.
What is FLUX used for?
State-of-the-art open image models from Black Forest Labs.
Who is FLUX best for?
FLUX is a good fit for high-quality image generation, or building image features on the API.
What are the alternatives to FLUX?
Commonly compared alternatives include Stable Diffusion and Midjourney, see the comparison above for how they differ.
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MLast reviewed: 2026-08 · Reviewed by AIKetra editors · How we evaluate tools