Civitai

An open-source hub where users can share, discover, and collaborate on AI art models. Explore thousands of free Stable Diffusion & Flux models, create and share AI-generated art, and join the world's largest community of generative AI creators. Civitai is a community-driven hub for open-source generative AI, focused mainly on Stable Diffusion models for creating and sharing AI-generated images, from simple sketches to intricate landscapes or portraits. It suits beginners exploring AI art, experienced creators fine-tuning models, and developers seeking collaborative resources; with over 5 million monthly active users, it fosters a space where artists, hobbyists, and tech enthusiasts collaborate on everything from LoRAs to full workflows. Signing up is free and straightforward; head to civitai.com, create an account, and dive into the "Explore" section to browse featured models and images. You can generate art right on the site using their built-in tool, or download models for local use with software like Automatic1111. Tutorials in the articles section guide you through prompts and setups, making it approachable even if you've never touched AI before; many users report getting their first decent image within minutes. Core access is completely free, including downloading thousands of models and basic image generation. For premium perks like higher generation limits, ad-free browsing, or training custom LoRAs, you can subscribe starting at around $5 per month; there's also a "Buzz" currency for bidding on exclusive models, earned through engagement or purchased separately. Donations unlock badges and roles, but most users stick to the free tier without missing much. Unlike closed systems like Midjourney, Civitai emphasizes open-source sharing with over 50,000 community-uploaded models, allowing full customization and local running; it's more like a collaborative library than a one-click generator. Compared to WebUI setups, it offers on-site generation, contests, and social features for inspiration, though it shines brightest for model discovery rather than advanced editing tools. That's one of its strongest suits. Upload your trained models, LoRAs, or embeddings via the "Create" section, add tags and example images, and the community can review, download, and iterate on them. Features like version control and monetization through tips or Buzz make it rewarding; just ensure compliance with content rules to avoid moderation issues. NSFW is supported but toggleable in your account settings, with options to blur or hide it; however, strict rules ban real-person likenesses, underage depictions, violence, or extreme fetishes, enforced through automated filters and reports. Recent 2025 updates paused certain payments and ramped up moderation, but some users note inconsistencies, so always test outputs responsibly. It's safer for SFW exploration, though.