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GPT-Realtime-2.1

openai/gpt-realtime-2.1

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

Input modalitiesT
Output modalitiesT
Source-linkedgptClosed weightsReleased 2026-07-06
Report data
Context window128K
Maximum output32K
Provider offers2
Knowledge cutoff2024-09-30
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputNo
AttachmentsYes
Temperature controlNo
Open weightsNo
Creator
OpenAI
Family
gpt
Modalities
Audio, Image, Text
License
Not documented
Release date
2026-07-06
Model ID
openai/gpt-realtime-2.1
Market availability

Provider pricing

Report price →
Providers offering GPT-Realtime-2.1
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
Vercel AI Gateway logoVercel AI Gatewayopenai/gpt-realtime-2.1128K$4 if offer.cost.input is defined else '—'}}$24 if offer.cost.output is defined else '—'}}$0.4 if offer.cost.cache_read is defined else '—'}}R · ·
View
{
  "cache_read": 0.4,
  "input": 4,
  "output": 24
}
OpenAI logoOpenAIgpt-realtime-2.1128K$4 if offer.cost.input is defined else '—'}}$24 if offer.cost.output is defined else '—'}}$0.4 if offer.cost.cache_read is defined else '—'}}R T ·
View
{
  "cache_read": 0.4,
  "input": 4,
  "input_audio": 32,
  "output": 24,
  "output_audio": 64
}
Evidence

Published benchmark results

Insufficient benchmark coverage. ModelBench does not infer a score from price, context size, or model name.