OpenAI

GPT-Realtime-2.1

Realtime speech-to-speech model with configurable reasoning, tool use, and robust voice-agent behavior

openai/gpt-realtime-2.1

Context

128K

Output

32K

Released

2026-07-06

Knowledge cutoff

2024-09-30

Types

InputTextImageAudio
OutputTextAudio

Reasoning

Supported

Tool use

Supported

Structured output

—

Attachments

Supported

Open weights

—

Provider pricing

Vercel AI Gateway
InTextAudio
OutTextAudio
Price
$4.00 / $24.00
Context
128K
Status
Stable

From the same lab