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Stable Horde

Free

A crowdsourced distributed cluster of Stable Diffusion workers.

FreeFree tier
Inputs: textOutputs: image, text
Type
Open Source
Company
Haidra
Visit Website GitHub (40 stars)

About Stable Horde

Stable Horde (also known as AI Horde) is a free, community-powered AI generation service. Volunteers share idle GPU and CPU power to create a distributed cluster that anyone can use to generate images and text via open-source AI models. The platform offers an anonymous API key for immediate use, but registered users earn Kudos — priority credits that grant faster processing. Kudos are earned by contributing compute and can be spent to prioritize jobs, but never expire. The service is run by Haidra, a non-profit organization funded by public donations and grants from NLnet/NGI0 Core. Users can access the network through front-end websites like ArtBot or integrate the open REST API into their own apps. Live status stats show worker activity, throughput, and queue depth in real time.

Key Features

Free AI image and text generation powered by community-contributed compute
Anonymous use with no registration required (lower priority)
Kudos priority system: earn credits by contributing compute, spend for faster processing
Open REST API for developers with no vendor lock-in
Live status statistics showing workers, throughput, and queue depth
User-friendly frontends like ArtBot for non-technical users
Supported by open-source image and text generation workers
Active community on Discord for support and collaboration

Pros & Cons

Pros
  • Completely free to use, even without registration
  • No coding required for basic use through front-end apps
  • Community-driven and open-source, reducing vendor lock-in
  • Transparent real-time status of network performance
  • Kudos system rewards contributors with priority, encouraging participation
  • Active Discord community provides support and collaboration
Cons
  • Anonymous accounts have the lowest priority during high demand
  • Generation speed depends on volunteer worker availability
  • Higher priority requires earning or purchasing Kudos, which may take time
  • No official mobile app; relies on third-party frontends
  • Service availability relies on community goodwill and donations

Best For

Generate AI images using text prompts for freeGenerate AI text using open-source language modelsIntegrate AI generation into apps and tools via the REST APIContribute idle GPU/CPU power to earn Kudos and support the communityPrototype AI features without upfront infrastructure costs

FAQ

What is Stable Horde (AI Horde)?
It is a free, community-powered network where volunteers share their computers to generate AI images and text for anyone to use.
How do I start generating?
You can use the anonymous API key '0000000000' immediately without registration, or register for a unique API key to get higher priority. Then use a frontend like ArtBot or the REST API.
What are Kudos?
Kudos are priority credits in the system. Workers earn Kudos by processing jobs, and users spend Kudos for higher priority. Kudos never expire and cannot be sold, but can be gifted to other users.
Do I need to install anything?
No. You can generate through web-based frontends with no coding or setup required. If you want to contribute compute, you can run a worker on your own hardware.
How is Stable Horde funded?
It is funded by public donations and grants from NLnet/NGI0 Core (Next Generation Internet) and run by Haidra, a community-based volunteer-run non-profit.