gpt-realtime-2.1

audioproprietary

GPT-Realtime-2.1 updates GPT-Realtime-2 with improved alphanumeric recognition, silence and noise handling, and interruption behavior. It supports speech-to-speech interactions with configurable reasoning effort, instruction following, and tool use for complex voice-agent workflows.

Intelligence
Reasoning
Speed
Context
128K
Max output
32K
Input price
$4/1M tokens
Output price
$24/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Infrastructure
Streaming

Details

Creator OpenAI
Licenseproprietary
Statusactive
Typeaudio
Input modalitiestext, audio, image
Output modalitiestext, audio
Open weightNo
Parameters—
Architecture—
Max duration—
Sample rate—
Channels—
Languages—
Genres—
Release date—
Sourceofficial

Pricing

Input
$4
Output
$24
Cache write
—
Cache read
—
Batch in
—
Batch out
—

Family Comparison: gpt-realtime

ModelLanguagesPricing
gpt-realtime-whisper—$0$0
gpt-realtime-mini—$0.6$2.4
gpt-realtime-1.5—$4$16
gpt-realtime-2.1—$4$24
gpt-realtime-2—$4$24

API

GET/v1/models/vercel/openai/gpt-realtime-2.1

gpt-realtime-2.1

GPT-Realtime-2.1 updates GPT-Realtime-2 with improved alphanumeric recognition, silence and noise handling, and interruption behavior. It supports speech-to-speech interactions with configurable reasoning effort, instruction following, and tool use for complex voice-agent workflows.

Changes · 2 entries
openai/gpt-realtime-2.1createca7a400Nov 2, 2026, 03:02 AM
openai/gpt-realtime-2.1createbbbc783Jul 12, 2026, 07:45 AM