MAI-Voice-2.1
Notable release: A meaningful new model: a new size or version, or a strong free-to-download model from a known lab.
Microsoft's new voice model turns written text into natural-sounding speech, available to developers through an online service rather than as a free download.
Key facts
- Released
- Oct 1, 2026
- What it does
- Makes sound: Creates speech, music or other audio.
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- How
- For developers, through an API
- Announced as
- “MAI-Voice-2.1 Turn text into expressive, natural-sounding speech in seconds.”
From trckr's archive of releases before it started watching. Date and details from Epoch AI's database of AI models (CC BY 4.0).
Compare MAI-Voice-2.1 with
It came out 28 days after MAI-Transcribe-2, the lab's previous model.
The details
Text-to-speech: Turns written text into a natural-sounding voice. model from Microsoft's MAI line, released only through API: How developers plug a model into their own apps and pay per use. A model that's "in the API" can be used by programmers, even if it isn't in a chat app yet. access with no public size or download listed.
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