OpenAI: GPT 4o Transcribe Diarize
Transcriptionopenai/gpt-4o-transcribe-diarizeGPT-4o Transcribe Diarize is OpenAI's high-quality speech-to-text model, built on GPT-4o audio capabilities and released on 2025-10-15, with speaker diarization for multi-speaker recordings such as meetings and interviews. It accepts audio input and returns transcribed text, and is billed per token for input and output rather than per minute, which keeps costs transparent at the token level. Accessible via the OpenAI-compatible protocol through Ofox.
Released
2025-10-15
Capabilities
Audio Input
Available Providers
Azure
Supported Protocols
openai
Providers
Azure
Input Tokens
$2.5/M
Output Tokens
$10/M
Audio Input
$6/M
Web Search
$0.035/R
Protocols
openai
/v1/audio/transcriptionsCode Examples
import requestswith open("speech.mp3", "rb") as audio:response = requests.post("https://api.ofox.io/v1/audio/transcriptions",headers={"Authorization": "Bearer YOUR_OFOX_API_KEY"},data={"model": "openai/gpt-4o-transcribe-diarize", "language": "en", "provider_options": '{"elevenlabs":{"diarize":true,"tag_audio_events":true,"diarization_threshold":0.2}}'},files={"file": ("speech.mp3", audio, "audio/mpeg")},)response.raise_for_status()print(response.json())
Upload audio to transcribe it into text. Identify speakers, specify the number of speakers and label audio events.
Related Models
Frequently Asked Questions
Simply set your base URL to https://api.ofox.io/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.
OpenAI: GPT 4o Transcribe Diarize supports the following capabilities: Audio Input. Access all features through the Ofox.ai unified API.