<p>Gradium has open-sourced Phonon, a family of on-device text-to-speech models. The English Phonon 31m ships under Apache 2.0, fits in 64.5 MB, and starts speaking in about 7 ms on a laptop CPU.</p>
<p>The post <a href="https://www.marktechpost.com/2026/10/22/gradium-phonon-31m-on-device-tts/">Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0</a> appeared first on <a href="https://www.marktechpost.com">MarkTechPost</a>.</p>