LLM Reference

GPT Realtime 2 Models by OpenAI

OpenAIProprietary
3 models2026Up to 131k ctxFrom $32/1M input

Last refreshed 2026-05-16. Next refresh: weekly.

Details

ResearcherOpenAI
LicenseProprietary
Commercial useCommercial use: conditional
Models3
Released2026
Max context131k

Capabilities

Multimodal2 of 3 models
Reasoning1 of 3 models
JSON / Tool use1 of 3 models

Links

Website

About

GPT Realtime 2 is OpenAI's second generation real-time voice model family, released May 7, 2026. The family includes gpt-realtime-2 for voice reasoning, gpt-realtime-translate for live speech-to-speech translation, and gpt-realtime-whisper for streaming speech-to-text transcription. These models use distinct Realtime API endpoints and supersede the GPT-4o Realtime Preview generation for voice-agent workflows.

Decision facts

Best fit
realtime voicetranslationspeech recognition
Capability starting point
GPT Realtime 2 with 131k context and reasoning, JSON / Tool use, and multimodal inputs
Lowest tracked input
GPT Realtime 2 · $32/1M · OpenAI API
Closest related family
GPT-5

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

3 in view

Use when the workload needs realtime voice, 131k context, and reasoning.

2026-05realtime voice131k contextreasoning

Use when the workload needs translation, multimodal inputs, and audio.

2026-05translationmultimodal inputsaudio

Use when the workload needs speech recognition and audio.

2026-05speech recognitionaudio

Release Timeline

1 release group
2026-05
3 current
GPT Realtime 2
realtime voice131k contextreasoning
Current
GPT Realtime Translate
translationmultimodal inputsaudio
Current
GPT Realtime Whisper
speech recognitionaudio
Current

Specifications(3 models)

GPT Realtime 2 model specifications comparison
ModelReleasedContextMultimodalReasoningJSON / Tool use
GPT Realtime 22026-05131kYesYesYes
GPT Realtime Translate2026-05YesNoNo
GPT Realtime Whisper2026-05NoNoNo

Available From(1 provider)

Pricing

GPT Realtime 2 model pricing by provider
ModelProviderInput / 1MOutput / 1MType
GPT Realtime 2OpenAI API$32$64Serverless

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