Stable Diffusion 3 Free Online vs LOFI By CivitAI

Stable Diffusion 3 Free Online is a browser-based text-to-image generator hosted at stablediffusion3.net. Enter a prompt and create images using Stable Diffusion 3-style generation without installing models locally.

The site also links to Flux AI tools, an AI art prompt gallery, and a blog covering image model updates. Free accounts get limited daily generations, while paid plans add fast-generation quotas, more concurrent jobs, and advanced edits such as magic erase, upscale, and PNG export.

All plans include private images, no watermark, upscale, and a commercial license according to the pricing page. Payments run through Stripe with monthly or yearly billing.

LOFI is a Stable Diffusion 1.x checkpoint published on Civitai for photorealistic portraits and subject-focused images. The v5-final release ships as a 2.39 GB fp16 SafeTensor file and targets users who want a tuned 1.5 base model rather than building their own fine-tunes from scratch.

Compared with stock SD 1.5 checkpoints, LOFI emphasizes prompt fidelity at low CFG values and portrait-heavy compositions. Version 5 recommends CFG between 2 and 5 with DPM++ samplers, works with LCM or HyperSD distillation helpers, and warns that scenes without a clear subject can be harder to generate without ControlNet depth guidance.

Digital artists, hobbyists, and SDXL users who keep a 1.5 refiner pipeline download LOFI for portrait work, ControlNet-guided layouts, and inpainting variants across the version history on Civitai.