Vibevoice 1.5B
Microsoft's Vibevoice 1.5B is a text-to-speech model designed for generating expressive, long-form, multi-speaker conversational audio, such as podcasts, from text. It is genuinely best at synthesizing speech up to 90 minutes long with up to 4 distinct speakers, addressing challenges in scalability and speaker consistency.
Input
Output
Context
-
Max Output
-
Parameters
2.7B
Technical Specifications
Model TypeAudio
Context WindowNot available
Max Output TokensNot available
Parameters2.7B
Release DateAug 25, 2025
Training CutoffNot available
Licensemit
Open SourceYes
Input Modalities
Text
Output Modalities
Audio
Capabilities
Resources & Links
Estimated GPU Requirements for Vibevoice 1.5B
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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