by CAMB-AI
MARS5-TTS from CAMB-AI is an open-weight model — the weights are published and can be downloaded, self-hosted, and fine-tuned. It falls under the Text to speech category, and its license permits commercial use subject to conditions (see below).
Network copyleft — the strongest: even offering it as a hosted/SaaS service counts as distribution, so you must share your source. Frequently disallowed in commercial products for this reason.
Plain-language guidance, not legal advice — always confirm against the model’s own license before you rely on it.