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OpenAI

GPT-4o Transcribe

GPT-4o Transcribe is a speech-to-text model built on the GPT-4o architecture, delivering lower word error rates and stronger language recognition than the original Whisper models for production transcription workloads.

index.ts
import { experimental_transcribe as transcribe } from 'ai';
import { gateway } from '@ai-sdk/gateway';
import { readFile } from 'node:fs/promises';


const result = await transcribe({
  model: gateway.transcriptionModel('openai/gpt-4o-transcribe'),
  audio: await readFile('audio.mp3'),
});
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About GPT-4o Transcribe

GPT-4o Transcribe launched on March 13, 2024 as part of OpenAI's next-generation audio models for the API. The model builds on the GPT-4o architecture and was extensively pretrained on specialized audio-centric datasets.

GPT-4o Transcribe improves word error rate over the Whisper model family across established benchmarks. On the FLEURS multilingual benchmark, GPT-4o Transcribe outperforms Whisper v2 and Whisper v3 across language evaluations. OpenAI attributes the advances to targeted reinforcement learning and midtraining with diverse, high-quality audio.

The practical effect is fewer misrecognitions in the conditions that break transcription products: heavy accents, noisy rooms, and varying speech speeds. Through AI Gateway, GPT-4o Transcribe runs behind the same key, observability, and spend controls as the rest of your model traffic.