GPT-Realtime-1.5

audioproprietary

GPT-Realtime-1.5 is our flagship audio model for voice agents and customer support.

Intelligence
Speed
Context
32K
Max output
4K
Input price
$4/1M tokens
Output price
$16/1M tokens

Capabilities

Reasoning & Interaction
Tool Calling

Details

Provider OpenAI
Creator openai
Familygpt-realtime
Licenseproprietary
Statusactive
Typeaudio
Input modalitiesaudio, image, text
Output modalitiesaudio
Open weightNo
Parameters—
Architecture—
Max duration—
Sample rate—
Channels—
Languages—
Genres—
Release date—
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Endpoints

RealtimeWS
Low-latency streaming via WebSockethttps://api.openai.com/v1/realtime

Pricing

Audio tokensPer 1M tokens
InputCached inputOutput
Standard$32$0.4$64
Text tokensPer 1M tokens
InputCached inputOutput
Standard$4$0.4$16
Image tokensPer 1M tokens
InputCached inputOutput
Standard$5$0.5—

Family Comparison: gpt-realtime

ModelMax durationSample rateChannelsLanguagesGenresPricing
GPT-Realtime-Translate——————
GPT-Realtime-Whisper——————
GPT-Realtime-2.1 Mini—————$0.6$2.4
GPT-Realtime Mini—————$0.6$2.4
GPT-Realtime-1.5—————$4$16
GPT-Realtime-2.1—————$4$24
GPT-Realtime-2—————$4$24
GPT-Realtime—————$4$16

API

GET/v1/models/openai/gpt-realtime-1.5