S1-mini runs locally in browser for speech text cleaning

xenovatech · reddit · 2026-08-20

Superwhisper released S1-mini, a 600M-parameter model designed to clean raw speech-to-text transcripts into polished written text. It removes false starts, adds punctuation, and formats numbers and dates. It is now running 100% locally in the browser via WebGPU using Transformers.js.

Related event: Superwhisper Releases Open-Source On-Device Model S1-mini(4 posts)→

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