Flux.1 Dev vs Leonardo.Ai

Flux.1 Dev and Leonardo.Ai 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

Flux.1 DevLeonardo.Ai
CategoryAI Art & Drawing · Image GenerationAI Art & Drawing · Image Generation
PricingWeights: free for non-commercial use. Replicate API $0.025 per image. (checked Oct 11, 2026)Free tier: yes (150 tokens/day). Paid $12/$30/$60 per month. (checked Oct 10, 2026)
Pros
  • 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
  • 150 free tokens/day, with no card needed
  • Many models and styles, plus video
  • Paid tiers include rollover banks
Catches
  • 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
  • Token costs vary by model and settings, and high-quality modes drain fast
  • Failed or moderation-blocked generations can still use tokens
  • Free outputs are public and Leonardo retains ownership
Best forDevelopers and tinkerers experimenting with a strong open image model.Game and concept artists wanting variety on a budget.
Skip it ifYou want to self-host it commercially without buying a license.You need private, commercial-ready free output.

Which should you pick?

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.

Pick Leonardo.Ai if…

you fit this: game and concept artists wanting variety on a budget.

But not if: you need private, commercial-ready free output.

Watch out for: Token costs vary by model and settings, and high-quality modes drain fast.

More options

Sources

Flux.1 Dev

Leonardo.Ai

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.