How does AI Horde work?

Requests go into a queue, volunteers run workers with models like SDXL or Flux, and results return via web UI or REST API. Kudos prioritize requests.

Is AI Horde really free?

Yes. It is donation and volunteer supported. Anonymous use is allowed with lower priority and request limits.

Kudos are a non-cryptocurrency reputation currency earned by contributing GPU time or donating. They boost queue priority and usage limits.

Can I generate NSFW content?

Some NSFW is allowed, but the platform filters illegal content and may censor outputs. Workers and models also vary in NSFW support.

How does the kudos priority queue work?

The scheduler estimates job cost in kudos and prioritizes users with higher kudos balances. Anonymous users default to low priority.

Can I run my own worker or private horde?

Yes. The worker software is open source, and you can run a private horde instance for yourself or a community.

Directory/Image Generation/AI Image Generation/AI Horde

AI Horde

AI Horde is a free, crowdsourced inference network: volunteers donate GPU time to run Stable Diffusion (SD1.5, SDXL, Flux, Stable Cascade), text LLMs and image interrogation jobs. You submit work through a REST API or the browser studio; volunteer workers pull it off a priority queue. Usage is metered in Kudos — a non-crypto karma currency earned by contributing GPU cycles, filling captcha forms, or donating. Anonymous requests work at lower priority. Supports img2img, inpainting, ControlNet, transparent backgrounds and QR-code art. Built for developers who want free image and text generation without owning a GPU. Open source, run by the non-profit Haidra, funded by donations and NLnet — no VC, no paywall, no data resale.

Image Generation

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Added on

Nov 4, 2026

Free, no paywallOpen sourceCrowdsourced GPUImage generationText generationAlchemy toolsREST APIKudos queueSDXL & FluxCommunity run

Product information

Everything worth knowing about AI Horde

The complete picture — from everyday features to the technical detail builders and IT folks dig for.

Core features

What it actually does

Free Image Generation

Type a prompt and get images back from volunteer GPUs. No account needed — anonymous requests just sit lower in the queue with tighter limits.

Text Generation

The same network also serves LLM text requests, queued as kilotokens alongside the image queue.

Alchemy Tools

A separate queue for utility jobs like image interrogation (pulling prompts/tags back out of an image), run by dedicated volunteer workers.

REST API

Everything on the site is backed by a documented REST API at aihorde.net/api — build your own client, bot or app on top of the horde.

Contribute a Worker

Point your own GPU at the network, serve requests, and earn kudos you can spend on priority generations.

Technical capabilities

Kudos Priority System

Compute is rationed by a non-crypto karma currency. Contributions and donations earn kudos; spending them buys queue priority. Anonymous users get the leftovers.

Anti-CSAM Filtering

Two-stage filtering — regex matching plus an AI classifier — blocks abusive requests, and workers can return placeholder (black-with-text) images for blocked content.

Must watch videos

Stable Horde: Img2Img and multiple models at the same time

2:53

Tutorial2:53

Stable Horde: Img2Img and multiple models at the same time

The Stable Horde (https://stablehorde.net) is a crowdsourced cluster of stable diffusion workers, aiming to providing free SD for everyone. Anyone can join us with their own GPU and benefit from increased priority! We have multiple UIs and tools integrating with it and anyone can make more due to the REST API we provide for all.

Stable Horde Client: Free AI Generated Images without complex installation

0:58

Tutorial0:58

Stable Horde Client: Free AI Generated Images without complex installation

The version 0.4.1 of the Stable Horde Client is out https://dbzer0.itch.io/stable-horde-client it now includes a progress bar so you can see how much progress there is towards your request.

How to increase response speed - AI Horde

2:33

Tutorial2:33

How to increase response speed - AI Horde

Join Horde AI as a worker and earn Kudos. AI Horde - https://stablehorde.net/ Colab - https://colab.research.google.com/github/db0/Simple-AI-Horde-Colab/blob/main/The_Simple_Stable_Horde_Colab.ipynb Agnaistic - https://agnai.chat/ More about AI Horde - https://youtu.be/XWYZQZrZgd0 Music - Super Meat Boy! Ballad of the Burning Squirrel

Who uses it

Real use cases, no hype

Free Image Generation

Create images from text prompts without a local GPU or paid API.

Text Generation

Run LLM prompts through volunteer-hosted text workers.

API Integration

Add free AI generation to apps via the REST API.

Image Editing

Use img2img, inpainting, and ControlNet for guided edits.

Community Contribution

Share GPU time as a worker and earn kudos.

Prototyping

Test AI features quickly without infrastructure setup.

Content Moderation Research

Study NSFW filtering and anti-CSAM mechanisms.

What's great

Free image and text generation on volunteer GPUs
No install; browser UI and REST API
Open source and community-run nonprofit
Kudos rewards workers and donors

Technical strengths

Async REST API with kudos-based priority queue
Supports SDXL, Flux, Stable Cascade, ControlNet, img2img, inpainting
Anonymous requests allowed with lower priority

Where it falls short

Queue waits; anonymous users get lower priority
Model availability depends on online volunteers
NSFW generations may be filtered or censored
No uptime SLA or guaranteed capacity

Technical limitations

Kudos economy throttles heavy usage
Worker hardware heterogeneity causes variable speed and model support

For technical folks

The deep-dive specs

Frontend stack

Angular, Flowbite, Tailwind CSS

Image models seen on the site

AlbedoBase XL 3.1, Juggernaut XL, DreamShaper XL, Cheyenne, Stable Cascade 1.0, Flux.1-Schnell fp8 (Compact)

API

REST API reference at aihorde.net/api

Account requirement

Optional — anonymous generation allowed with lower priority and request limits

Governance

Run by Haidra, a volunteer-run non-profit; funded by public donations and NLnet / NGI0 Core

Open source

Yes — GitHub (Haidra-Org/AI-Horde)

Throughput units

Megapixelsteps for images (megapixels × steps), kilotokens for text

FAQ

Includes technical Q&A

AI Horde is a free, open-source, community-run network where volunteers share GPU power to generate AI images and text for anyone.

Traffic Insights

Monthly Visits

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November 2026

Growth Rate

vs last month

Dominance

in Image Generation

Top Country

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Top Countries Breakdown

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Growth Trend

Stable

Traffic has remained stable.

Pricing overview

Unknown Pricing

AI Horde Pricing

AI Horde uses a unknown pricing structure. Real-time rates, custom enterprise quotas, and plan details are managed directly on their official platform.

Check Pricing on AI Horde

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