# Microsoft Releases VibeVoice, a 7B Podcast TTS Model

> The new 7-billion-parameter model is designed for generating long-form, multi-speaker audio in English and Chinese under a permissive MIT license.

Published by The Open Weights on Sep 4, 2025. Canonical: https://theopenweights.com/news/vibevoice-7b-rrx3

## Key facts

- Company: Vibevoice
- Model: VibeVoice-7B
- Version: 7B
- Category: Text → Speech
- Modalities: Text → Speech
- License: MIT (Open weights, commercial use allowed)
- Parameters: 7B
- Architecture: VibeVoiceForConditionalGeneration
- Precision: BF16
- Weights size: 18.7 GB
- Languages: English, Chinese
- Significance: notable
- Published: 2025-09-04
- Last verified: 2026-06-17
- Hugging Face: https://huggingface.co/vibevoice/VibeVoice-7B
- Canonical URL: https://theopenweights.com/news/vibevoice-7b-rrx3

Microsoft has entered the open-source audio space with VibeVoice-7B, a large text-to-speech (TTS) model designed for creating complex, conversational audio. At 7 billion parameters, it represents a significant new entry in a field where high-quality, open models are still less common than their text-based counterparts.

The model's primary strength is its ability to generate long-form, multi-speaker content that mimics the style of a podcast. This capability addresses a key challenge in synthetic audio: maintaining vocal consistency and natural turn-taking over extended durations. VibeVoice-7B supports both English and Chinese, broadening its potential applications.

## Key Capabilities

*   **Multi-Speaker Generation:** Creates conversational audio with distinct voices.
*   **Long-Form Synthesis:** Optimized for generating extended content like articles or audiobooks.
*   **Bilingual Support:** Capable of producing speech in both English and Chinese.
*   **Permissive Licensing:** Released under the MIT license, allowing for wide-ranging commercial and research use.

What makes this release particularly notable is the combination of its scale and permissive license. While proprietary TTS services offer high quality, a powerful open-source alternative like VibeVoice gives developers and creators more control and flexibility. This could accelerate innovation in areas like automated content production, accessibility tools, and dynamic virtual assistants. The model is available for download and experimentation on its [Hugging Face repository](https://huggingface.co/vibevoice/VibeVoice-7B).

## Get the model

- [Hugging Face](https://huggingface.co/vibevoice/VibeVoice-7B)

## Sources

- [vibevoice/VibeVoice-7B](https://huggingface.co/vibevoice/VibeVoice-7B) — Hugging Face, Sep 4, 2025

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Microsoft Releases VibeVoice, a 7B Podcast TTS Model", The Open Weights, Sep 4, 2025, https://theopenweights.com/news/vibevoice-7b-rrx3