Free online AI art generator that turns a text prompt into an image, with optional reference image or sketch.

AI Horde
Free community network where volunteers share GPU power so anyone can generate AI images and text through an open API.
What is AI Horde?
AI Horde, also known as Stable Horde, is a volunteer-run network that provides free AI image and text generation. People donate idle computer power by running worker software, and anyone can send prompts through a frontend such as ArtBot, a bot or an app, with no setup. Workers come in three kinds: Dreamers generate images with models like Stable Diffusion, SDXL and Flux, Scribes run language models, and Alchemists handle upscaling and captioning. Developers can integrate through an open REST API. You can use an anonymous API key with lowest priority, or register for a key and earn kudos, the priority credit that workers collect for jobs. Kudos never expire and cannot be sold. The service is run by Haidra, a volunteer non-profit funded by donations and NLnet. There is no price, and speed depends on how busy the network is.
Use cases
- Generate images for free
- Share idle GPU power with others
- Build apps on a free generation API
- Earn kudos by running a worker
- Generate text with community models
- Upscale or caption images
Who it's for
Why use AI Horde
- You can generate images and text at no cost, without installing anything.
- No registration is required to start, so trying it takes a minute.
- Contributing a worker earns kudos you can spend on faster results.
- An open API lets developers build tools without being locked to one vendor.
- Requests are anonymized before they reach workers.
AI Horde features
- Free image generation through web frontends like ArtBot
- Text generation with volunteer-hosted language models
- Open REST API with no vendor lock-in
- Anonymous API key with no registration
- Kudos priority system that never expires
- Worker types for images, text and post-processing
- Live stats on workers, throughput and queue depth
- Anonymized requests so workers never see user identity
AI Horde integrations
How to get started with AI Horde
- Open a frontend such as ArtBot and enter a prompt, or use the anonymous API key 0000000000.
- Optionally register to get a personal API key and earn kudos.
- Your request joins a queue and a volunteer worker generates the result.
- Spend kudos to rise in the queue, or run your own worker to earn more.
- Developers can call the REST API from their own apps.
AI Horde limitations
- Anonymous users get the lowest priority when the network is busy
- Speed and available models depend on what volunteers are hosting
- Kudos can be gifted but not sold
- Running a worker needs a compatible GPU for image and text jobs
AI Horde pricing
AI Horde is free to use.
AI Horde plans
Free
Free
Donation funded
- Image and text generation
- Anonymous or registered API key
- Kudos priority system
Plans as listed on the official pricing page on . Prices can change and may vary by country or exclude tax. Check the official pricing page.
AI Horde alternatives
The main AI Horde alternatives listed on Debuly are Stable Diffusion web UI, Allcraft.ai, ComfyUI, Deep Dream Generator, DeepAI and FLUX. The table compares pricing and platforms; order is A–Z.
| Tool | Pricing | Starting price | Platforms |
|---|---|---|---|
| AI Horde | Free | — | Web, API, Self-hosted |
| Allcraft.ai | Freemium | $14/mo | Web, API |
| ComfyUI | Open source | $16/mo | Web, Desktop, API |
| Deep Dream Generator | Freemium | $9/mo | Web |
| DeepAI | Freemium | $9.99/mo | Web, API |
| FLUX | Open source | — | CLI, Self-hosted, API, Python |
| Stable Diffusion web UI | Open source | — | Windows, Linux, macOS, API |
Allcraft.ai
Allcraft.ai bundles more than 60 AI tools for chat, image, video and voice work into one token-based subscription.

ComfyUI
Node-based interface and backend for building diffusion workflows for images, video and 3D, run locally or on Comfy Cloud.
Open sourceVisit ComfyUI (official site)
Deep Dream Generator
Online AI art platform with 30+ image, video and editing models, an energy-based usage system and a public community gallery.

DeepAI
Browser-based AI platform for images, video, music, chat and photo editing, with a Pro prepaid-wallet plan and image APIs.
FreemiumVisit DeepAI (official site)
FLUX
Black Forest Labs' official repository for running FLUX.1 open-weight models locally for text-to-image generation and image editing.
Open sourceVisit FLUX (official site)Stable Diffusion web UI
Free, open-source Gradio browser interface for running Stable Diffusion on your own machine, with img2img, inpainting, upscaling and training tools.
AI Horde FAQ
How much does AI Horde cost?
Nothing. It is described as a free service funded by donations and NLnet, and run by the non-profit Haidra.
Is there a free plan for AI Horde?
All use is free. An anonymous API key works with no registration, and registering gives you kudos for faster results.
What are kudos on AI Horde?
Kudos are the priority currency. Workers earn them for processing jobs, users spend them for higher queue priority, and they never expire or get sold.
Does AI Horde have an API?
Yes. It offers an open REST API, and many frontends, bots and tools already use it.
Is AI Horde open source?
The site says it is powered by open-source image and text generation workers, and the network is run by a volunteer non-profit.
What are alternatives to AI Horde?
Alternatives include Craiyon, Stable Diffusion run locally, Leonardo AI free tier and Hugging Face Spaces. On Debuly, compare Stable Diffusion web UI, Allcraft.ai and ComfyUI.
Sources & verification
Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.
| Source | Type | Accessed |
|---|---|---|
| stablehorde.net/ | pricing | |
| stablehorde.net/faq/ | official | |
| stablehorde.net/details/usage/ | official | |
| stablehorde.net/details/workers/ | official | |
| stablehorde.net/contribute/workers/ | official |
Image credits
- Logo: from stablehorde.net · fetched · Vendor trademark, used only to identify the product; removed on request
- Cover: none collected yet, so a generated tile is shown.
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