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Stable DiffusionSD 3.5

The open-source image generator — self-host, fine-tune, run anywhere. Powers most production image-gen pipelines in 2026.

🎨ImageOpen sourceOpen source
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Capabilities

  • image-generation
  • inpainting
  • self-hostable
  • controlnet
  • fine-tuning
  • API

Pricing tiers

Open source
Free
Self-host
  • +CreativeML Open RAIL license
  • +SD 3.5 weights free
  • +Run locally or in cloud
Recommended
Stability AI API
$10/usage
API users
  • +Credits-based API
  • +SD 3.5 + SDXL + Turbo
  • +Higher-priority queue
Enterprise
Custom
Enterprise
  • +Self-host commercial license
  • +Custom fine-tuning
  • +Dedicated support

Pros & cons

Pros
  • +Only major open-source image generator — total control over the pipeline
  • +Massive community of fine-tunes (Civitai etc.) for specialized styles
  • +Self-hosting eliminates per-image costs at scale
Cons
  • −Setup overhead is real — local hardware + Comfy/Automatic1111 learning curve
  • −Baseline quality trails Midjourney for aesthetic-default work
  • −Commercial licensing for fine-tunes gets murky

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