Open-source latent diffusion model for local image generation, now at SD3.5 with improved composition and text rendering. Self-hostable on consumer GPUs (8GB VRAM minimum for SD3.5 base), with an extensive ecosystem of fine-tuned models on Civitai. Stability AI underwent restructuring in 2025 after funding challenges but the open-source ecosystem remains active.
| Plan | Details |
|---|---|
| Free | Community License: free for individuals, researchers, and businesses under $1M annual revenue (open-source, self-hostable). |
| Pro | Community License: Free (<$1M annual revenue) |
| Enterprise | Enterprise License: Custom (>$1M annual revenue) |
Model weights open-source and free to run locally. Commercial use by orgs over $1M/yr revenue requires a paid Enterprise license. Stability also sells a hosted API separately (usage-based).
Stable Diffusion is a free AI tool best suited for Developers and technical users who want full control over the generation pipeline, Organizations with data privacy requirements that prohibit cloud-based image processing.
