Inworld TTS

Inworld TTS

Inworld
MAI-Voice-2.1

MAI-Voice-2.1

Microsoft
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About

Inworld TTS is a state-of-the-art text-to-speech platform designed to deliver ultra-realistic, context-aware speech synthesis and precise voice-cloning capabilities at a radically accessible price. The flagship model, TTS-1, is optimized for real-time applications and supports low-latency streaming (first audio chunk in ≈200 ms) as well as multiple languages (including English, Spanish, French, Korean, Chinese, and more). Developers can use instant zero-shot voice cloning (5-15 seconds of audio) or professional fine-tuned cloning, add voice-tags for emotion, style, and non-verbal sounds, and switch languages while preserving voice identity. The larger TTS-1-Max model (in preview) offers even more expressive speech and multilingual strength. The platform supports both API and portal access, streaming or batch mode, and is designed for everything from interactive voice agents and gaming characters to branded audio experiences.

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.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises 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 businesses looking for a tool offering multilingual voice synthesis and custom-voice cloning at scale

Audience

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

Support

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

Support

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

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

$0.005 per minute
Free Version Not Supported
Free Trial Not Supported

Pricing

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

Review this Software

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 Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

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

Company Information

Inworld
Founded: 2021
United States
inworld.ai/tts

Company Information

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

Alternatives

Alternatives

MAI-Voice-2

MAI-Voice-2

Microsoft AI
Qwen3-TTS

Qwen3-TTS

Alibaba
Chirp 3

Chirp 3

Google
Voxtral TTS

Voxtral TTS

Mistral AI

Categories

Categories

Integrations

Azure AI Speech Not Supported
Claude Supported
Fireworks AI Supported
Google AI Overviews Supported
Groq Supported
Inworld Supported
LiveKit Supported
Mistral AI Supported
OpenAI Supported
Tenstorrent DevCloud Supported
Vapi AI Supported
gpt-oss-20b Supported

Integrations

Azure AI Speech Supported
Claude Not Supported
Fireworks AI Not Supported
Google AI Overviews Not Supported
Groq Not Supported
Inworld Not Supported
LiveKit Not Supported
Mistral AI Not Supported
OpenAI Not Supported
Tenstorrent DevCloud Not Supported
Vapi AI Not Supported
gpt-oss-20b Not Supported
Claim Inworld TTS and update features and information
Claim Inworld TTS and update features and information
Claim MAI-Voice-2.1 and update features and information
Claim MAI-Voice-2.1 and update features and information