ImageFreemium

Flux

Open-source image model rivalling Midjourney quality.

Visit Flux Free (self-host), API from $0.05/image

What is Flux?

Black Forest Labs' open model. Released in 2024, quickly became the open-source quality leader. Available as API, on Together.ai, Replicate, fal.ai.

Key features

  • Open weights (Flux.1 Dev)
  • Commercial API tier
  • Excellent prompt adherence
  • Multiple model sizes
  • Strong text rendering

Pros

  • Open source matches commercial
  • Affordable API
  • Active developer ecosystem

Cons

  • No polished consumer UI
  • License varies by model variant

Best for

DevelopersSelf-hostersAPI integrations

Alternatives to Flux

Image

Stable Diffusion

Open-source image generator — free, runs locally, fully customisable.

Image gen
FreeFree (self-host) or via API
Released August 2022
Image

Midjourney ★

The AI image generator with the most distinctive aesthetic.

Image gen
PaidFrom $10/mo
Released July 2022