MAI-Voice-2.1

MAI-Voice-2.1

Microsoft
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About

MAI-Voice-2.1 is Microsoft's hosted text-to-speech model for developers building voice-enabled products. It generates expressive speech from text, supports multilingual output across 23 languages, and offers emotion and style controls, long-form speaker consistency, and gated matching to consented reference voices. Developers access it through Microsoft Foundry and Azure Speech APIs and SDKs for narration, audiobooks, voice assistants, and customer-service experiences.

About

Realtime TTS-2 from Inworld AI is a new generation of voice model built for real-time conversation: a voice model that feels as human as it sounds. It hears the full audio of an exchange, picks up the user’s tone, pacing, and emotional state, then takes voice direction in plain English, the way developers prompt an LLM. Instead of generating speech in isolation, it listens to prior turns of the exchange, so tone and pacing carry forward, and the same line can land differently after a joke than after bad news. Voice Direction lets developers steer delivery like a director would steer a voice actor, using natural-language descriptions rather than fixed emotion presets or sliders. Inline nonverbals like [sigh], [breathe], and [laugh] can be placed inside the text, and the model renders them as audio events. Realtime TTS-2 preserves one voice identity across more than 100 languages, including mid-utterance language switches.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers and organizations building multilingual speech-enabled products, including narration and audiobook services, voice assistants, and customer-service or call-center experiences.

Audience

Voice AI developers building realtime agents, characters, tutors, support systems, and companions that need emotionally aware, multilingual, humanlike speech

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$22/1M characters
Usage-based at $22 per 1 million characters of generated speech.
Free Version Not Supported
Free Trial Not Supported

Pricing

$25 per month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Microsoft
Founded: 1975
United States
microsoft.ai/models/mai-voice-2-1/

Company Information

Inworld
Founded: 2021
United States
inworld.ai/blog/realtime-tts-2

Alternatives

MAI-Voice-2

MAI-Voice-2

Microsoft AI

Alternatives

Voxtral TTS

Voxtral TTS

Mistral AI
Inworld TTS

Inworld TTS

Inworld

Categories

Categories

AI Models Supported
Text to Speech Supported

Integrations

Azure AI Speech Supported
ChatGPT Not Supported
Claude Not Supported
Gemini Not Supported
Grok Not Supported
Perplexity Not Supported

Integrations

Azure AI Speech Not Supported
ChatGPT Supported
Claude Supported
Gemini Supported
Grok Supported
Perplexity Supported
Claim MAI-Voice-2.1 and update features and information
Claim MAI-Voice-2.1 and update features and information
Claim Realtime TTS-2 and update features and information
Claim Realtime TTS-2 and update features and information