Stable Diffusion vs Flux.1 Dev

Stable Diffusion and Flux.1 Dev are both AI Art & Drawing tools (Image Generation). Below: what each costs, what it does well, its biggest catches, and who should pick which, all from public sources rather than our own testing.

Side by side

Stable DiffusionFlux.1 Dev
CategoryAI Art & Drawing · Image GenerationAI Art & Drawing · Image Generation
PricingFree tier: yes (open weights, Community License under $1M revenue). Enterprise license: contact sales. (checked Oct 10, 2026)Weights: free for non-commercial use. Replicate API $0.025 per image. (checked Oct 11, 2026)
Pros
  • Open weights you can run locally and offline, with full control (LoRAs, ControlNet, inpainting)
  • Free for individuals and businesses under $1M annual revenue under Stability's Community License
  • Huge community ecosystem of UIs: ComfyUI, Forge, Fooocus, InvokeAI
  • Open-weight model from Black Forest Labs that you can run locally
  • On Replicate, pay per image with no subscription
  • Per Replicate, images generated through its API can be used commercially
Catches
  • Needs a capable GPU: SDXL wants 8 GB VRAM minimum, 12 GB to be comfortable
  • Steep learning curve. You're picking a UI, models and settings yourself
  • Businesses over $1M revenue need an Enterprise license, and hands and text still come out imperfect
  • The weights are under a non-commercial license. Self-hosted production use needs a BFL license
  • Running it locally needs a strong GPU
  • Pay-per-image adds up at volume
Best forTinkerers and studios who want total control and local, private generation.Developers and tinkerers experimenting with a strong open image model.
Skip it ifYou want a polished one-click app, or you don't have a decent GPU.You want to self-host it commercially without buying a license.

Which should you pick?

Pick Stable Diffusion if…

you fit this: tinkerers and studios who want total control and local, private generation.

But not if: you want a polished one-click app, or you don't have a decent GPU.

Watch out for: Needs a capable GPU: SDXL wants 8 GB VRAM minimum, 12 GB to be comfortable.

Pick Flux.1 Dev if…

you fit this: developers and tinkerers experimenting with a strong open image model.

But not if: you want to self-host it commercially without buying a license.

Watch out for: The weights are under a non-commercial license. Self-hosted production use needs a BFL license.

More options

Sources

Stable Diffusion

Flux.1 Dev

Pros, catches and prices are compiled from public sources (official pricing and docs pages, published reviews, user reports), not hands-on testing. Prices change often, so check the vendor page before you buy.