Image generation

Flux

Black Forest Labs' image model with strong prompt adherence and realism; partly open source.

Last updated by editors: 2026-09-20

Our review

Flux is Black Forest Labs' image model with strong realism and prompt adherence, partly open source with good ecosystem support — a recent favorite for photorealistic, controllable generation.

Top configs need compute, commercial use depends on licensing, and fine control needs plugins; but for prompt-obedient, realistic imagery, Flux has joined the top tier of open image models.

Pros

Strong realism

Great prompt adherence

Open weights available

Ecosystem support

Cons

Top tier needs compute

Commercial needs license

Control via plugins

Key features

Text-to-imageImage editing (Kontext)High resolutionControlNet

Best for

Photorealistic imagesProduct shotsWorkflow integration

Who it's not for

需要开箱即用网页产品的用户

不愿逐项确认模型授权条款的商业团队

Limits to plan for

部分权重开源、部分仅 API，商用授权需逐项确认
本地顶配运行吃显存
精细控制依赖 ComfyUI 等外部工具

FAQ

What is Flux?

Black Forest Labs' image model with strong prompt adherence and realism; partly open source.

What are the pros and cons of Flux?

Pros: Strong realism, Great prompt adherence, Open weights available, Ecosystem support. Cons: Top tier needs compute, Commercial needs license, Control via plugins.

How much does Flux cost?

Open source: Free; API: Pay-as-you-go.

Who is Flux for?

Best for Photorealistic images, Product shots, Workflow integration.

What are the alternatives to Flux?

Consider Stable Diffusion, Midjourney, Ideogram.

Visit site ↗GitHub repository ↗