Criterion Midjourney Stable Diffusion
CategoryAI Image GeneratorsAI Image Generators
In one sentenceAn AI image generator known for highly stylised, artistic output from short text prompts.Open-weight image generation you can run locally or through hosted APIs, with deep customisation via community models.
Problem it solvesProducing original illustrations and concept art without a design team.Generating images with full control over the model, tooling, and where your data goes.
Free planNoYes
Developer APINoYes — docs
Open sourceNoYes
PlatformsWeb, DiscordWindows, Linux, macOS, Hosted API
Pricing (summary)Paid subscription plans only — there is no free tier. Verify current plans and commercial terms on Midjourney's site.
Checked 2026-10-05
The model weights are open — self-hosting is free; hosted APIs and apps charge per use. Verify current options on Stability AI's site.
Checked 2026-10-05
Strengths
  • Distinctive artistic quality
  • Fast iteration on visual ideas
  • Open ecosystem — no vendor lock-in
  • Runs offline when self-hosted
Limitations
  • Paid-only access (no free tier)
  • Text rendering inside images is imperfect
  • Licensing for commercial use depends on your plan
  • Local setup is more technical
  • Output quality depends on the model and settings