Microsoft AI

MAI-Voice-2-Flash

MAI-Voice-2-Flash is a text-to-speech (TTS) model built for ultra-fast, low-latency generation. It delivers high-fidelity, natural, and expressive speech across 15 languages, while being optimized for real-time responsiveness for voice agents, assistants,
Microsoft
Version: 2026-07-22

MAI‑Voice‑2‑Flash is a text‑to‑speech (TTS) model built for ultra‑fast, low‑latency generation. It delivers high‑fidelity, natural, and expressive speech across 15 languages, while being optimized for real‑time responsiveness. Voice‑2‑Flash preserves human‑like intonation, rhythm, and emotional nuance, making it ideal for voice agents, assistants, and other interactive scenarios where speed is critical.

About this model

There are two ways to set the voice for your project:

  • Curated voice library: Licensed voices designed to work straight out of the box.
  • Voice prompting: Provide a short audio clip (5–60 seconds) and the model matches it instantly.

Key capabilities

  • Natural and expressive voice synthesis.
  • Low latency for real-time usecases like voice assistants or agents.
  • High-clarity voice output.
  • Multilingual support across 15 languages & 18 locales.
  • Instant Voice Cloning in any consented voice, without additional training/fine-tuning.
  • Fine‑grained control over emotions.

Key model capabilities

  1. Natural Voice Synthesis with Low Latency
    Produces natural, expressive speech that still achieves the low latency needed for real‑time use.

  2. State-of-the-Art Voice Cloning
    Generate speech from short audio prompts (5-60 seconds). Prompt quality significantly impacts output, with best results from natural, conversational delivery and moderate energy levels.

  3. Fine-grained control
    Supports turn-level control over tone, delivery, and emotion.

  4. Multilingual speech synthesis
    English, Italian, Spanish (Mexico), Hindi, English (Australia), French, German, Portuguese (Brazil), Korean, Portuguese (Portugal), Spanish (Spain), Chinese (Simplified), Turkish, Russian, Thai, Dutch, Romanian, Hungarian.


Key use cases

  • Virtual Assistants and Chatbots – Power conversational agents across apps and devices with natural voices.
  • Call Center Agents – Support real‑time agent workflows with natural, expressive voice output.
  • Accessibility Features – Provide narration for visually impaired users and assistive voice technologies.
  • Educational Experiences – Build interactive learning content with expressive narration.
  • IVR Systems – Enable natural, expressive call center interactions.
  • Public Announcements – Deliver clear, engaging voice output for public information systems.

Out of scope use cases

Usage will be restricted to use the service in any way that is inconsistent with the Code of Conduct


Quick facts

Model providerMicrosoft
TypeText to speech, Audio generation
LifecyclePreview
Input typetext
Output typeaudio