GPT-4o Transcribe Diarize
A speech-to-text tool from OpenAI that writes down conversations and marks which person said each part, for developers.
This came out before trckr began following OpenAI API, so it was added on Nov 8 without an alert. Its release date comes from OpenAI API changelog.
Key facts
- Released
- Aug 26, 2026
- What it does
- Makes sound: Creates speech, music or other audio.
Can I use it?
In an app
No app mentioned so far.
For developers
Developers can use it now through an API: How developers plug a model into their own apps and pay per use. A model that's "in the API" can be used by programmers, even if it isn't in a chat app yet..
Download
Not downloadable: it runs on the maker's own servers.
Compare GPT-4o Transcribe Diarize with
It came out 28 days after GPT Transcribe, the lab's previous model.
The details
OpenAI added a Speech-to-text: Turns spoken audio into written text. Also called transcription or ASR. model that labels who is speaking, alongside its GPT-4o transcribe models in the API: How developers plug a model into their own apps and pay per use. A model that's "in the API" can be used by programmers, even if it isn't in a chat app yet..
Model ID: The exact name developers type to use a model, like gpt-5-mini. New IDs often show up in a lab's systems before the official announcement, which is how trckr spots many releases early.
gpt-4o-transcribe-diarizeTimeline
/OpenAI APIOfficialFirst signal
gpt-4o-transcribe-diarize
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