Criterion FLUX (Black Forest Labs)Krea AI
CategoryAI Image GeneratorsAI Image Generators
In one sentenceBlack Forest Labs' FLUX image models, available through an API, a playground, and open-weight licences you can self-host.Real-time image and video generation with in-browser editing, upscaling and trained LoRA styles.
Problem it solvesGetting a state-of-the-art image model either as a hosted API or as weights you can run and fine-tune on your own infrastructure.Iterating on AI images usually means prompt, wait, regenerate. Real-time canvas editing cuts that loop down.
Free planNoYes
Developer APIYes — docsYes — docs
Open sourceYesNo
PlatformsWeb, API, Linux, Windowsweb
Pricing (summary)API access is pay-as-you-go with a published per-image calculator and no subscription; open-weight use requires a paid licence tier (Builder, Platform, Professional or Enterprise). Verify current rates on BFL's pricing page.
Checked 2026-10-18		Free plan with 100 units/day. Monthly: Basic $9, Pro $35, Max $105, Business $200 (annual billing shown at 40% off: $5.25/$21/$63/$160 per month).
Checked 2026-10-28
Strengths
  • Both hosted API and open weights, so you are not locked into one deployment model
  • Documented per-image API pricing calculator
  • Fine-tuning and LoRA rights under the open-weight licences
  • Real-time feedback shortens iteration
  • Multiple models in one place
  • Upscaling and editing in same workspace
Limitations
  • No free consumer plan is advertised — API use is pay-as-you-go and open weights require a paid licence
  • Self-hosting needs a capable GPU and operational work
  • Licence tiers cap monthly images, domains and licensed users
  • Credit/unit metering
  • Commercial rights depend on plan tier
  • Model availability can change