Skip to main content
Microsoft Foundry
gpt-live-1

gpt-live-1

Gpt-live-1 is a bidirectional voice API that lets applications listen and speak simultaneously instead of forcing rigid turn boundaries. It is being developed as a new specialized API surface rather than a small extension of the current Realtime S2S deploy
OpenAI
Direct from Azure
Version: 2026-09-10

Direct from Azure models are a select portfolio curated for their market-differentiated capabilities:

  • Secure and managed by Microsoft: Purchase and manage models directly through Azure with a single license, consistent support, and no third-party dependencies, backed by Azure's enterprise-grade infrastructure.
  • Streamlined operations: Benefit from unified billing, governance, and seamless PTU portability across models hosted on Azure - all part of Microsoft Foundry.
  • Future-ready flexibility: Access the latest models as they become available, and easily test, deploy, or switch between them within Microsoft Foundry; reducing integration effort.
  • Cost control and optimization: Scale on demand with pay-as-you-go flexibility or reserve PTUs for predictable performance and savings.

Learn more about Direct from Azure models .

About this model

A bidirectional voice API that lets applications listen and speak simultaneously instead of forcing rigid turn boundaries. It is being developed as a new specialized API surface rather than a small extension of the current Realtime S2S deployment. Includes:

  • Multilingual + accents across 10 languages
  • Instruction following with FEM/BEM architecture
  • Tool calling with FEM/BEM architecture

Supported region: Sweden Central, East US 2, Central US, France Central, South India, Canada Central

Key model capabilities

Key Features:

  • Multilingual + accents across 10 languages
  • Instruction following with FEM/BEM architecture
  • Tool calling with FEM/BEM architecture which can be used with other gpt models for complex requests
  • Human-like naturalness
  • Simultaneous listen-and-speak interaction
  • Configurable frontend and backend prompts
  • Delegative patterns without rigid turn-taking

Quick facts

PublisherOpenAI
AuthorOpenAI
TypeAudio generation
LifecycleGenerally available (GA)
Hosted onAzure
Input typeaudio, text, image
Output typeaudio, text
Context window128k
Token limits4096 output