What happened to Stable Diffusion API?

discontinued The URL on file (https://stablediffusionapi.com/playground) did not respond across three consecutive checks; the streak completed on 2026-09-21.

The address on file matched Stable Diffusion API's own domain with high confidence, so this observation is reported about Stable Diffusion API directly. See the methodology for how the match is made.

The vendor's own description, unedited:
The Playground - Stable Diffusion and Dreambooth API is a tool that allows users to play with stable diffusion models through an easy-to-use user interface (UI). This API provides the ability to generate and finetune dreambooth stable diffusion models. It offers a variety of options and functionalit...

Live alternatives

No active same-category alternatives in the registry yet. The tools index carries everything else that is live.

How this was decided

Not an editorial call. The URL on file failed three consecutive checks, with a confirmation re-probe before the streak counted (a bot-wall response never counts as one), and the 3-miss rule marks the listing discontinued automatically. If the URL responds again, the registry restores it on its own: warn first, then active. Both directions are recorded as events.

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