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Stable Diffusion 3.5

The Legacy Open-Source Option

Still free to self-host with a mature ControlNet/ComfyUI ecosystem, but the open-weight crown has passed to FLUX.2 and Ideogram 4.0 — Stability has pivoted to audio and enterprise tools.

Strengths

  • Free self-hosting under the Community License
  • Mature LoRA/ControlNet/ComfyUI ecosystem
  • Full control and privacy
  • Huge library of community fine-tunes

Considerations

  • Quality now clearly behind FLUX.2, Ideogram 4.0, and closed models
  • No new flagship image model since 3.5
  • Community has largely migrated to FLUX
  • Technical setup and hardware required

Pricing & Details

Pricing

Free (open weights); enterprise license above $1M revenue

Free Option

Yes (fully open weights)

Best For

Existing SD workflows, legacy pipelines, maximum customization

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