Open-Source Notices

Last updated 23 October 2026

Our voices are made with an open-source model. We are grateful to the people who built it.

The voices are generated with Kokoro-82M, an open-source text-to-speech model released under the Apache License 2.0. Model: huggingface.co/hexgrad/Kokoro-82M. Licence text: apache.org/licenses/LICENSE-2.0.

The site font is Bricolage Grotesque, released under the SIL Open Font License 1.1.

Cylindricle is also built with other open-source software, used under its own licences. Trademarks belong to their owners, and Cylindricle is not affiliated with or endorsed by the authors of these projects.

Questions about this page? Write to support@cylindricle.com. See also our terms, privacy policy, refund policy and AI voice policy.