+
+

Related Products

  • Google Cloud Speech-to-Text
    366 Ratings
    Visit Website
  • QEval
    30 Ratings
    Visit Website
  • LM-Kit.NET
    29 Ratings
    Visit Website
  • 3Q
    14 Ratings
    Visit Website
  • LALAL.AI
    5,230 Ratings
    Visit Website
  • Adobe Firefly
    25,029 Ratings
    Visit Website
  • Google AI Studio
    30 Ratings
    Visit Website
  • Overmonitor
    8 Ratings
    Visit Website
  • LTX
    182 Ratings
    Visit Website
  • Dragonfly
    16 Ratings
    Visit Website

About

Azure Voice Live API is a fully managed solution for building low-latency, high-quality speech-to-speech agents through one unified interface. It combines speech recognition, generative AI, and text-to-speech, allowing developers to send audio input and receive audio output, synchronized avatar visuals, and action triggers without manually orchestrating separate backend components or deploying the underlying models. It supports more than 140 speech-to-text locales and over 600 standard voices across 150+ text-to-speech locales, with options for phrase lists, custom speech, custom voices, and brand-aligned avatars. Developers can choose among multiple generative AI models, including GPT-Realtime, GPT-5, GPT-4.1, GPT-4o, Phi, and compatible bring-your-own models, depending on the intelligence, speed, and latency required. Advanced conversational features include noise suppression, echo cancellation, robust interruption detection, and end-of-turn detection.

About

GPT-Realtime-2.1 is OpenAI’s reasoning model with tool use for low-latency voice agents and complex speech-to-speech workflows. It updates GPT-Realtime-2 with improved alphanumeric recognition, silence and noise handling, and interruption behavior, helping applications understand spoken code, manage imperfect audio, and respond more naturally when users pause or talk over the agent. Developers can configure reasoning effort to balance deeper thinking against latency and output usage, while strong instruction following helps the model stay aligned with a defined role, tone, and workflow. It accepts and produces both audio and text, can take images as input, and supports function calling so an agent can retrieve information or perform actions during a conversation. The model has a 128,000-token context window, supports up to 32,000 output tokens, and includes reasoning-token support for extended interactions.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Public-sector service teams that need multilingual voice agents to answer questions and complete citizen-facing tasks in real time

Audience

Developers, AI agent builders, voice AI teams, contact center platforms, customer support teams, product teams, enterprise automation teams, and conversational AI companies that need realtime speech-to-speech interactions, audio input and output, function calling, tool use, configurable reasoning, image input, long-context voice workflows, transcription, translation, and interactive AI assistants

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

$0.40 per cached input
Free Version
Free Trial

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
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Microsoft
Founded: 1975
United States
learn.microsoft.com/en-us/azure/ai-services/speech-service/voice-live

Company Information

OpenAI
Founded: 2015
United States
developers.openai.com/api/docs/models/gpt-realtime-2.1

Alternatives

Alternatives

Veritone Voice

Veritone Voice

Veritone

Categories

Categories

Integrations

gpt-realtime
GPT-4.1
GPT-4o
GPT-5
MAI-Voice-2-Flash
Microsoft Azure
OpenAI
Phi-4

Integrations

gpt-realtime
GPT-4.1
GPT-4o
GPT-5
MAI-Voice-2-Flash
Microsoft Azure
OpenAI
Phi-4
Claim Azure Voice Live API and update features and information
Claim Azure Voice Live API and update features and information
Claim GPT-Realtime-2.1 and update features and information
Claim GPT-Realtime-2.1 and update features and information