About
AI Horde (formerly known as Stable Horde) is a free, open, and community-powered AI generation service built on the principle of shared computing. Volunteers around the world run worker nodes, contributing their idle GPU or CPU cycles to a distributed network that processes AI image and text generation requests for anyone — with no setup, no subscription, and no cost. The platform operates on a kudos-based priority system: users who contribute computing power as workers earn kudos, which grant faster queue priority when generating content. Anonymous users can jump in immediately using a public API key, while registered accounts unlock higher priority and the ability to gift kudos to others. Developers can integrate AI Horde directly via its open REST API with no vendor lock-in. For non-technical users, a growing ecosystem of frontends — including the popular ArtBot web app — provides a visual interface to generate images from prompts without any coding. The project is funded by public donations and NLnet/NGI0 Core grants, and is governed by Haidra, a community-driven non-profit. AI Horde is ideal for hobbyists, artists, developers, and researchers who want free access to open-source AI image and text generation, as well as anyone who wants to contribute compute power to a public good.
Key Features
- Community-Powered Generation: Volunteers share idle GPU/CPU power to run a distributed network of AI workers, making image and text generation free for everyone.
- Kudos Priority System: Workers earn kudos by processing jobs; users spend kudos for faster queue priority. Kudos never expire and can be gifted to others.
- No Setup Required: Use AI Horde instantly via web frontends like ArtBot — just type a prompt and generate. Anonymous access is available with no registration.
- Open REST API: Developers can integrate AI Horde into their own apps and tools through a fully documented, vendor-lock-in-free REST API.
- Live Network Stats: Real-time visibility into active workers, throughput, and queue depth so users can monitor the health of the horde at any time.
Use Cases
- Artists and hobbyists generating AI artwork for free without a paid subscription using ArtBot or other frontends.
- Developers building AI-powered apps and tools by integrating the open REST API without proprietary vendor lock-in.
- Researchers and students experimenting with open-source stable diffusion models at no cost.
- Community contributors sharing idle GPU power to earn kudos and support free AI access for others.
- Indie creators and small teams testing AI image generation workflows before committing to a paid commercial platform.
Pros
- Completely Free to Use: No subscription or payment required — the entire platform is funded by donations and volunteer compute, making AI generation accessible to everyone.
- Open Source & No Vendor Lock-in: The platform is open source with a public API, letting developers build freely without dependency on a proprietary provider.
- Easy Onboarding: Non-technical users can start generating immediately through beginner-friendly frontends like ArtBot, with zero coding or configuration needed.
- Community-Driven & Transparent: Run by a non-profit, governed by the community, and funded by public donations — the mission and operations are fully transparent.
Cons
- Variable Generation Speed: Without kudos, anonymous users sit at the lowest queue priority and may experience slower generation times during high-demand periods.
- Resource Availability Fluctuates: Since the network depends on volunteer workers, available GPU capacity can vary and may be limited at off-peak times.
- Less Polished Than Commercial Alternatives: As a community project, the user experience and feature set may lag behind well-funded commercial AI image generation platforms.
Frequently Asked Questions
No. You can use the public anonymous API key (10 zeros) to start generating immediately. However, registering gives you a unique API key and the ability to earn and spend kudos for higher queue priority.
Kudos are priority credits in the AI Horde system. You earn kudos by running a worker and contributing your GPU/CPU power to process jobs for others. They can never be sold, but they can be gifted to other users.
Use one of the community frontends like ArtBot (artbot.site), which provides a visual web interface. Just enter a prompt and generate — no technical knowledge required.
Yes. AI Horde offers a fully documented open REST API that you can use to add AI image and text generation to your own tools and applications, with no vendor lock-in.
AI Horde is funded by public donations (via Patreon and direct donations) and grants from NLnet/NGI0 Core. It is run by Haidra, a volunteer-based, community-driven non-profit organization.