Open-Source Browser TTS Runtime phonon Runs on WebGPU

Developer blixt open-sourced phonon, a WebGPU-based browser TTS runtime for a 31M-parameter model, quantized to 8-bit so it downloads in 44MB and reaches up to 115x real-time speed on desktop and 26x on iPhone.

2026-11-02 ~ 2026-11-04 · 2 related posts

• Browser TTS hack: 43.7MB quantized model hits 115x real-time with word timestamps — blixt · 2026-11-02
• phonon: WebGPU browser TTS hits 26x real-time on iPhone with a 44MB model, open sourced — blixt · 2026-11-04