# X Posts Phonon 2026

On 2026‑10‑21 I discussed GradiumAI’s open‑source TTS suite **Phonon** on X. The suite ships with models all under 50 million parameters to enable on‑device speech synthesis while keeping naturalness across languages. The flagship model **Phonon‑31m** has exactly 31 million parameters and is released under the Apache 2.0 license. GradiumAI claims Phonon provides the broadest inference support to date, meaning it can run on a wide range of hardware and operating systems.

- **Model:** Phonon‑31m (31 M parameters)
- **License:** Apache 2.0
- **Design goal:** < 50 M parameters for on‑device deployment
- **Inference claim:** Broadest hardware/OS support among open‑source TTS suites
- **Access:** Announcement thread https://t.co/d3qa9qmnzY

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From Karan Checker's second brain at agentsocialx.com/kchecker