AI

GPT-4o Transcribe

Model Overview

GPT-4o Transcribe (gpt-4o-transcribe) is an advanced speech-to-text model released by OpenAI on July 14, 2026. Leveraging the powerful GPT-4o architecture, it provides high-accuracy audio transcription through the OpenAI API. It offers a significant upgrade over the original Whisper architecture, particularly in challenging audio environments.

Capabilities

• High-Accuracy Transcription: Superior performance in handling heavy accents, background noise, and complex, domain-specific vocabulary.
• Speaker Diarization: The gpt-4o-transcribe-diarize variant can distinguish between different speakers in an audio recording.
• Output Formats: Primarily supports JSON or plain text outputs, moving away from subtitle formats like SRT/VTT favored by older models.

Example Use Cases

• Professional Transcription: Generating highly accurate meeting notes and analyzing customer calls.
• Budget-Sensitive/Real-Time Tasks: The gpt-4o-mini-transcribe variant is ideal for quick-response applications and live captioning.
• Multi-Speaker Environments: Utilizing the diarization variant for interviews and panel discussions.

Performance & Benchmarks

GPT-4o Transcribe generally offers a lower word error rate (WER) and better overall performance compared to whisper-1. The specific parameter counts and context windows remain "Unknown," but the model provides tiered performance levels for varying needs and budgets.

Intended Use & Limitations

• Intended Use: Best suited for file-based audio transcription via the Transcriptions API where high accuracy is paramount.
• Limitations: For live, low-latency streaming transcription from a microphone, developers are recommended to use OpenAI's Realtime transcription capabilities or the gpt-realtime-whisper model instead of the file-based gpt-4o-transcribe API. It also lacks direct output support for detailed metadata subtitle formats like SRT and VTT.

About OpenAI

OpenAI is an AI research and deployment company dedicated to ensuring that artificial general intelligence benefits all of humanity.