Vibevoice Realtime 0.5B
Microsoft's Vibevoice Realtime 0.5B is a lightweight, open-source, real-time text-to-speech model that excels at streaming text input and robust long-form speech generation, making it suitable for building real-time TTS services and narrating live data streams. Its interleaved, windowed design and efficient acoustic tokenizer enable fast processing, with initial audible speech produced in approximately 300 ms.
Input
Output
Context
-
Max Output
-
Parameters
1B
Technical Specifications
Model TypeAudio
Context WindowNot available
Max Output TokensNot available
Parameters1B
Release DateDec 4, 2025
Training CutoffNot available
Licensemit
Open SourceYes
Input Modalities
Text
Output Modalities
Audio
Capabilities
Resources & Links
Estimated GPU Requirements for Vibevoice Realtime 0.5B
Estimates based on INT8 quantization. Actual requirements vary by framework and configuration.
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 23, 2026
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