Audience
Users and developers seeking a solution to get conversational audio generation to enrich AI interactions with expressive, natural-sounding voice
About MAI-Voice-1
MAI-Voice-1 is Microsoft AI’s first highly expressive and natural speech generation model, designed to produce high-fidelity, emotionally rich audio across single- and multi-speaker scenarios with extraordinary efficiency, capable of generating a full minute of audio in under one second on a single GPU. Integrated into Copilot Daily and Podcasts, it powers a new Copilot Labs experience where users can test its expressive speech and storytelling capabilities, such as crafting “choose your own adventure” narratives or bespoke guided meditations using simple prompts. Voice is envisioned as the interface of the future for AI companions, and MAI-Voice-1 delivers this vision through its lightning-fast performance and realism, making it one of the most efficient speech systems available. Microsoft is exploring the potential of voice interfaces to create immersive, personalized AI interactions.
Other Popular Alternatives & Related Software
MAI-Voice-2.1
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.
Learn more about MAI-Voice-2.1
Play.ht
AI Powered Text to Voice Generation.
Play.ht offers uncanny, high-fidelity AI Voices for any project where you need human-sounding voice overs and performances.
Hollywood studios, auto manufacturers, and other large enterprises use Play.ht to create realistic and engaging voiceovers quickly, without the hassle of scheduling and hiring voice talent. Our voices sound natural, expressive, and engaging, just like human voice talent.
Play.ht offers API access as well as an online rich-text editor that allows you to generate entire performances with multiple speakers, edit their pacing, and generate unique versions of each paragraph - all within seconds.
Join other companies looking to scale up and simplify their voice work by scheduling a live demo today.
Learn more about Play.ht
MAI-Voice-2-Flash
MAI-Voice-2-Flash is Microsoft AI’s fast, efficient text-to-speech model for high-volume voice experiences where responsiveness is essential. It produces high-fidelity, natural, and expressive speech while preserving the prosody, acoustic quality, human-like rhythm, intonation, and emotional nuance of MAI-Voice-2. The model is optimized for real-time synthesis and runs twice as fast as MAI-Voice-2, making it suitable for voice agents, assistants, interactive applications, call centers, and IVR systems that must respond without noticeable delay. It supports 15 languages across 18 locales and includes a library of licensed, curated voices that can be used immediately. Developers can control speaking style and emotion through SSML, shaping delivery with expressions such as joy, excitement, empathy, sadness, whispering, or shouting to match different conversational situations and brand experiences.
Learn more about MAI-Voice-2-Flash
MAI-Transcribe-1
MAI-Transcribe-1 is a state-of-the-art speech-to-text model developed by Microsoft and available through Azure AI Foundry, designed to deliver high-accuracy transcription for real-world audio across enterprise and developer use cases. It supports 25 major languages and is optimized to handle diverse accents, dialects, and speaking styles, maintaining consistent performance even in challenging conditions such as background noise, low-quality recordings, or overlapping speech. It is built by Microsoft’s AI Superintelligence team with a dual focus on accuracy and efficiency, enabling fast batch transcription and scalable deployment for production environments. MAI-Transcribe-1 powers a wide range of applications, including meeting transcription, live captions, accessibility tools, call center analytics, and voice-driven agents, making it a foundational component for voice-enabled systems.
Learn more about MAI-Transcribe-1
Company Information
Microsoft
Founded: 1975
United States
microsoft.ai/news/two-new-in-house-models/
Videos and Screen Captures
Other Useful Business Software
Train ML Models With SQL You Already Know
Build and deploy ML models using familiar SQL. Automate data prep with built-in Gemini. Query 1 TB and store 10 GB free monthly.
Product Details
Platforms Supported
Cloud
Training
Documentation
Support
Online
MAI-Voice-1 Frequently Asked Questions
Q: What kinds of users and organization types does MAI-Voice-1 work with?
MAI-Voice-1 works with these users and organization types: Mid Size Business, Small Business, Enterprise, Freelance, Nonprofit, Government, and Startup.
Q: What languages does MAI-Voice-1 support in their product?
MAI-Voice-1 supports these languages: English.
Q: What kind of support options does MAI-Voice-1 offer?
MAI-Voice-1 offers support via online.
Q: What other applications or services does MAI-Voice-1 integrate with?
MAI-Voice-1 integrates with: Microsoft Copilot.
Q: Does MAI-Voice-1 have an API?
Yes, MAI-Voice-1 has an API.
Q: What type of training does MAI-Voice-1 provide?
MAI-Voice-1 provides training in the form of documentation.
