OpenAI gpt-realtime
OpenAI gpt-realtime
Version: 2025-08-28
OpenAILast updated October 2025
A new S2S (speech to speech) model with improved instruction following.

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Key capabilities

About this model

This model merges all speech to speech improvements into a single model to provide a more reliable instruction following. This model excels at instruction following.

Key model capabilities

Key Features:
  • Two new voices
  • Improved instruction following
  • Enhanced voice naturalness
  • High audio quality
  • Improved function calling

Use cases

See Responsible AI for additional considerations for responsible use.

Key use cases

The provider has not supplied this information.

Out of scope use cases

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Pricing

Pricing is based on a number of factors, including deployment type and tokens used. See pricing details here.

Technical specs

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Training cut-off date

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Training time

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Input formats

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Output formats

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Supported languages

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Sample JSON response

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Model architecture

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Long context

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Optimizing model performance

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Additional assets

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Training disclosure

Training, testing and validation

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Distribution

Distribution channels

This model is provided through the Azure OpenAI Service.

More information

The following documents are applicable:

Responsible AI considerations

Safety techniques

The provider has not supplied this information.

Safety evaluations

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Known limitations

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Acceptable use

Acceptable use policy

The provider has not supplied this information.

Quality and performance evaluations

Source: OpenAI The provider has not supplied this information.

Benchmarking methodology

Source: OpenAI The provider has not supplied this information.

Public data summary

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Model Specifications
Context Length128000
LicenseCustom
Training DataAugust 2025
Last UpdatedOctober 2025
Input TypeAudio,Text,Image
Output TypeAudio,Text
ProviderOpenAI
Languages27 Languages