# Zyphra Releases Open-Source Zonos 2 TTS Model

> The new text-to-speech model offers a commercially permissive alternative for developers in a field still dominated by closed-source APIs.

Published by The Open Weights on Jun 11, 2026. Canonical: https://theopenweights.com/news/zonos-2-u7e2

## Key facts

- Company: Zyphra
- Model: Zonos 2
- Version: 2
- Category: Text → Speech
- Modalities: Text → Speech
- License: Apache 2.0 (Open weights, commercial use allowed)
- Languages: 34 languages
- Significance: notable
- Published: 2026-06-11
- Last verified: 2026-06-22
- Hugging Face: https://huggingface.co/Zyphra/ZONOS2
- Canonical URL: https://theopenweights.com/news/zonos-2-u7e2

AI research company Zyphra has released Zonos 2, an open-weight model for text-to-speech (TTS) synthesis. The model is designed to generate human-like audio from text inputs, providing a foundational tool for applications requiring voice output.

The most significant aspect of the release is its license. Zonos 2 is available under the Apache 2.0 license, a permissive open-source license that allows for commercial use, modification, and distribution. This stands in contrast to the many high-quality TTS systems that are only accessible through proprietary, paid APIs, giving developers a new option for building and owning their voice generation stack.

While Zyphra has not yet published detailed technical specifications or performance benchmarks, the model and its weights are [available for download on Hugging Face](https://huggingface.co/Zyphra/ZONOS2). This allows developers and researchers to immediately begin experimenting with the model and integrating it into their projects.

Zonos 2 represents a welcome expansion of open-source AI into modalities beyond text generation. As developers seek to build more complex, multi-modal applications, the availability of high-quality, permissively licensed components for audio, vision, and other senses will become increasingly crucial.

## Get the model

- [Hugging Face](https://huggingface.co/Zyphra/ZONOS2)

## Sources

- [Zyphra/ZONOS2](https://huggingface.co/Zyphra/ZONOS2) — Hugging Face, Jun 11, 2026

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Zyphra Releases Open-Source Zonos 2 TTS Model", The Open Weights, Jun 11, 2026, https://theopenweights.com/news/zonos-2-u7e2