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Stable Diffusion 3 medium demo

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Try Stable Diffusion 3 Medium for free in this page, without an account: a text-to-image model that understands full sentences, places several subjects correctly and can render short text in quotes. Write what you want to see and get a 1024×1024 image in under a minute.

How to use Stable Diffusion 3 Medium

  1. Describe the scene as a sentence: "a red cube on a blue sphere, to the left of a green cone" works better than a keyword list.
  2. Put any text you want in the image between quotes, for example a poster title.
  3. Click Run; the image appears in the frame after the queue.
  4. Adjust the prompt rather than the negative prompt: SD 3 reacts less to negatives than older models.

Limits and questions

What is the difference with SDXL?

SD 3 Medium uses a diffusion transformer with three text encoders: better prompt understanding and readable text, but weaker reaction to artist names and fewer community fine-tunes. See the comparison guide.

Is Stable Diffusion 3.5 available here?

This demo runs SD 3 Medium. SD 3.5 (October 2024) improved anatomy and quality; you can run it locally with ComfyUI, see the installation guide.

Why is the demo slow or unavailable?

This demo is hosted by a third party (Hugging Face Space) and embedded here; it can be slow, queued or temporarily unavailable when the host is busy. Nothing to install, no account needed.

Read the guide: SDXL vs Stable Diffusion 3 vs SD 1.5