Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0
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.
In brief
- What: Gradium Open-Sources Phonon, a 31M-Parameter On-Device TTS Model Under Apache 2.0
- When: October 22, 2026 at 19:56
- Source: MarkTechPost (media)
- Topic: Models
Prepared by Ilya Tarasov’s Tarasov Code newsroom based on a report by MarkTechPost.
