As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/m/gpt-realtime-whisper/

# GPT-Realtime-Whisper

OpenAI, GPT Realtime family. Status: legacy. Type: speech and audio. Released: 2026-05-07.

## How to call it

| Provider | Model id | Endpoint | Docs |
|---|---|---|---|
| OpenAI API | `gpt-realtime-whisper` | wss://api.openai.com/v1/realtime (transcription sessions, v1/realtime/transcription_sessions) | https://developers.openai.com/api/docs/models/gpt-realtime-whisper |

## Pricing

- Per minute: $0.017
- Unit as published: per minute of audio (USD)
- Source: https://developers.openai.com/api/docs/pricing
- Last checked: 2026-09-29

## Specs

- Input: audio, text
- Output: text
- Context window: 16,000 tokens
- Max output: 2,000 tokens
- Open weights: no
- Licence: proprietary

## Where it stands

- Newer speech and audio models in the registry since its release: 57. The 5 newest:
  - NVIDIA Nemotron 3.5 Transcribe (30B-A4B) (2026-10-28) https://postcutoff.com/m/nemotron-3-5-transcribe/
  - Hy-SimulMT-30B-A3B (2026-10-22) https://postcutoff.com/m/hy-simulmt-30b-a3b/
  - Eleven Realtime v1 Max / Mini (2026-10-20) https://postcutoff.com/m/eleven-realtime-v1-max/
  - Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3) (2026-10-20) https://postcutoff.com/m/voxtral-mini-transcribe-3/
  - Voxtral Small Transcribe 3 (2026-10-20) https://postcutoff.com/m/voxtral-small-transcribe-3/
- Before it from OpenAI: GPT-Audio-1.5 (and gpt-audio / gpt-audio-mini) (2026-02-23) https://postcutoff.com/m/gpt-audio-1-5/
- After it from OpenAI: GPT-Realtime-2.1 (2026-07-06) https://postcutoff.com/m/gpt-realtime-2-1/
- Closed weights; access is hosted only.

## What stands out

- Streaming speech-to-text with tunable latency: Streams transcript deltas from live audio with a latency/accuracy trade-off setting. Source: https://developers.openai.com/api/docs/models/gpt-realtime-whisper

## Notes

Still listed and not deprecated, but gpt-live-transcribe (2026-07-28, same $0.017/min) adds context and keyword hints and is what OpenAI recommends in its deprecation notices; hence marked legacy here. Language list not given in docs.

Streaming transcription for live audio; see [gpt-live-transcribe](gpt-live-transcribe.md) for the newer option.

Sources:
- https://developers.openai.com/api/docs/models/gpt-realtime-whisper
- https://developers.openai.com/api/docs/pricing
- https://developers.openai.com/api/docs/changelog

Model page: https://postcutoff.com/m/gpt-realtime-whisper/