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A Closer Look at Phonon TTS and Its On-Device Benchmarks

A Closer Look at Phonon TTS. Launching High-Quality On-Device Speech That Tops the Benchmarks.

Image: Hugging Face Blog
Who
Hugging Face
What
shared a closer look at the Phonon text-to-speech launch, including its capabilities, demos, and leaderboard results
Quote
So here's the story of the launch: why we built Phonon, what it can do, the demos that came with it, and how it did on Hugging Face's Open TTS Leaderboard.

What happened

Hugging Face reviews Phonon, its text-to-speech model for on-device use, two weeks after opening it up. The post describes its five supported languages, licensing, demos, and integrations, and reports that Phonon ranks first in German and Spanish intelligibility and in the top three in every evaluated language on Hugging Face’s Open TTS Leaderboard. It also outlines the ptts inference framework and the Transformers implementation.

Why it matters

The post explains how Phonon’s on-device design, licensing, and inference options relate to its leaderboard results, giving developers concrete context for evaluating the release.

Read next

See the full storyHugging Face Reports Phonon’s On-Device TTS Benchmarks and Licensing

The story so far

Hugging Face says Phonon ranks first for intelligibility in German and Spanish and among the top three in every language evaluated on its Open TTS Leaderboard. The company’s closer look at the text-to-speech model, published two weeks after its launch, also covers its five supported languages, demos, and integrations. Phonon 31m is licensed under Apache 2.0 and can be used commercially for free. Hugging Face says its other Phonon models use CC BY-NC and are free for non-commercial projects; commercial pricing for those models is based on the number of users, not the amount of speech generated. The post also describes the ptts inference framework and the Transformers implementation.

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