@JafarNajafov: Supertonic just killed ElevenLabs. A text-to-speech model that runs entirely on your device. No cloud. No API key. No p…

X AI KOLs Timeline 05/12/26, 11:29 AM Models

Summary

The article highlights Supertonic, an open-source text-to-speech model that runs entirely on-device, claiming superior speed and formatting accuracy compared to cloud-based services like ElevenLabs and OpenAI.

Supertonic just killed ElevenLabs. A text-to-speech model that runs entirely on your device. No cloud. No API key. No per-character pricing. 2,700 GitHub stars. 100% open source. MIT licensed. The numbers are wild: → 167x faster than real-time on an M4 Pro → Only 66M parameters → 1,263 chars/sec vs ElevenLabs Flash at 287 → 1,048 chars/sec vs OpenAI TTS-1 at 55 → Runs on a Raspberry Pi. Runs on an e-reader in airplane mode. Reads currency, dates, phone numbers, and technical units correctly without preprocessing. ElevenLabs fails these. OpenAI fails these. Gemini fails these. Supports 11 platforms and 5 languages. Chrome extension turns any webpage into audio in under a second. I've watched on-device models lose to cloud APIs for years. This one doesn't lose. The cloud TTS business just got cooked.

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Supertonic is a new open-source TTS engine that runs on-device via ONNX, supporting 31 languages and outperforming ElevenLabs in speed, even on a Raspberry Pi without a GPU.

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Supertonic 3 is a lightweight, open-weight text-to-speech model designed for fast on-device inference, expanding support to 31 languages with improved stability and expression tags.