by hakurei
waifu-diffusion from hakurei is an open-weight model — the weights are published and can be downloaded, self-hosted, and fine-tuned. It falls under the Text to image category, and its license permits commercial use subject to conditions (see below).
Commercial use allowed (this is the Stable Diffusion license family), with use-based restrictions prohibiting harmful/illegal generation.
Plain-language guidance, not legal advice — always confirm against the model’s own license before you rely on it.