Civitai
Open hub for AI image and video models, with on-site generation and LoRA training
Last reviewed 2026-06-20
Civitai is a community platform and model hub for open generative AI, built around the Stable Diffusion ecosystem. Users browse, download, and share model types including checkpoints (full base or merged models), LoRAs (lightweight fine-tunes for styles, characters, or concepts), textual inversions, and VAEs, each shown with sample generations so quality is visible before download. Beyond hosting, it runs an on-site generator for images and video and a browser-based LoRA trainer that needs no local GPU, plus galleries, articles, contests, and creator monetization. Civitai is an assistant-style creative tool, not an autonomous agent: a person writes a prompt, picks models and resources, and the generator produces images or video on request, with the user selecting and refining outputs. On-site generation and training are metered by an in-platform currency called Buzz; core browsing and downloading are free. Founded in 2022 by Justin Maier and Maxfield Hulker and based in Boise, Idaho, Civitai raised a $5.1M seed round led by Andreessen Horowitz in 2023; user-count figures are vendor- or press-reported.
What it can do
Host and share open AI models
AssistantCatalogs checkpoints, LoRAs, textual inversions, and VAEs for the Stable Diffusion ecosystem, with tags, categories, and sample generations so users can evaluate quality before downloading.
sourceGenerate images and video on-site
AssistantRuns a browser generator that produces images and video (including open models like Mochi and Hunyuan) from a prompt and selected resources; outputs are metered by the Buzz currency.
sourceTrain LoRAs in the browser
AssistantOffers a hosted LoRA trainer that needs no local GPU, reportedly supporting SD1.5/SDXL/Flux with dataset upload, captioning, parameter presets, progress monitoring, and one-click publishing to the community library.
sourceProgrammatic access via REST API
AssistantA public Site API lets developers search models, images, creators, and tags and look up model versions by file hash, and an Orchestration API submits image, video, audio, and text jobs across provider backends; OAuth and an MCP server are also offered.
source
Strengths
- +Largest open library of Stable Diffusion checkpoints, LoRAs, and embeddings, each with sample generations
- +On-site image and video generation plus a browser LoRA trainer that needs no local GPU
- +Free to browse and download; public REST API and an MCP server for integrations
Limitations
- −An assistant-style creative tool, not an autonomous agent
- −On-site generation and training are metered by the Buzz currency, which can add up
- −Payment and content policies have shifted (card-network restrictions on adult UGC), affecting how memberships and Buzz are purchased
- −User-count and scale figures are vendor- or press-reported
Overview
Civitai is a community platform and model hub for open generative AI, centered on the Stable Diffusion ecosystem. It is best known as the largest place to browse, download, and share AI image models, but it also runs its own on-site generator and a hosted LoRA trainer.
What it does
It hosts model types including checkpoints, LoRAs, textual inversions, and VAEs, each tagged and shown with sample generations so users can judge quality before downloading. Its on-site generator produces images and video (including open models such as Mochi and Hunyuan) from a prompt and selected resources. A browser-based LoRA trainer lets users fine-tune models without a local GPU, reportedly supporting SD1.5/SDXL/Flux with dataset upload, captioning, presets, and one-click publishing. Around these sit galleries, articles, contests, leaderboards, and creator monetization. A person drives every generation, so it operates as an assistant.
Integrations & setup
Use it via the web app (no install) for browsing, on-site generation, and training; downloaded models run in local tools such as ComfyUI and Automatic1111. A public Site API supports model/image/creator/tag search and version lookup by file hash, and an Orchestration API submits image, video, audio, and text jobs across provider backends. OAuth and an MCP server are also offered for agent and app integrations.
Pricing
Freemium. Browsing and downloading are free. On-site generation and training are metered by an in-platform currency called Buzz. Paid membership tiers (Bronze around $10/month, with higher tiers) grant monthly Buzz allowances, private model slots, larger jobs, and other perks. Payment options have shifted over time due to card-network restrictions on adult user-generated content; check the current pricing page for how memberships and Buzz are purchased.
Best for / not for
Best for hobbyists, artists, and developers who want open Stable Diffusion models, on-site or local generation, and easy LoRA training. Less suited to teams wanting brand-controlled vector or marketing design (see Recraft) or an autonomous creative agent.
Traction
Founded in 2022 by Justin Maier and Maxfield Hulker and based in Boise, Idaho, Civitai raised a $5.1M seed round led by Andreessen Horowitz in 2023 (reported ~$20M valuation). User-count and monthly-LoRA figures are vendor- or press-reported.
Alternatives
Recraft and Leonardo focus on design and product image generation; Midjourney is a closed high-quality generator; Stability AI and Hugging Face/Replicate sit closer to the open-model and hosting layer.
What people are saying
We aggregate real LinkedIn discussion into sentiment for the agents people search most. Civitai isn't tracked yet, want it added? Request tracking.
FAQ
Is Civitai an AI agent?+
No. It is a model hub and on-site generation platform. A person writes a prompt, picks models and LoRAs, and the generator produces images or video on request, with the user selecting and refining the output. It operates at the assistant level.
Is Civitai free?+
Browsing and downloading models are free. On-site image/video generation and LoRA training are metered by an in-platform currency called Buzz, and paid membership tiers (starting around $10/month) grant monthly Buzz allowances and extra features.
What model types does Civitai host?+
Checkpoints (full base or merged models), LoRAs (lightweight fine-tunes), textual inversions, and VAEs, primarily for the Stable Diffusion ecosystem, each typically shown with sample generations.
Sources
- Civitai homepage · accessed 2026-06-20
- Civitai developer API documentation · accessed 2026-06-20
- Civitai's guide to video in the Civitai Generator (Education) · accessed 2026-06-20
- Andreessen Horowitz backs Civitai (TechCrunch) · accessed 2026-06-20
Last reviewed 2026-06-20