Criterion FLUX (Black Forest Labs)Ideogram
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.An AI image generator with unusually reliable text rendering, plus editing, upscaling and short video generation.
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.Making images that contain legible words, logos and typography — something most image models still struggle with — and editing them without leaving the browser.
Free planNoYes
Developer APIYes — docsYes — docs
Open sourceYesNo
PlatformsWeb, API, Linux, WindowsWeb, iOS, Android, API
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
A free plan provides a weekly credit allowance for Google, Apple and Microsoft sign-ins; paid plans and purchased credits unlock more generations, premium models and video. API usage is billed in the same credit system. Verify current plans on Ideogram's pricing page.
Checked 2026-10-18
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
  • Strong text-in-image rendering compared with most generators
  • Free weekly credits for common sign-in providers
  • Image editing, upscaling and video in the 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
  • Video and premium apps require a paid plan or purchased credits
  • Free-tier images are tied to the account type and credit allowance — check the current terms
  • Generated lettering still needs proofreading before commercial use