OpenAI GPT-4o Transcribe
OpenAI's most accurate hosted transcription model, which follows a hint for names and terms and returns plain text without timestamps.
GPT-4o Transcribe is a cloud speech-to-text model from OpenAI. It transcribes spoken audio into written text. It handles multiple spoken languages. It also supports an optional text prompt that guides the spelling of names and terms. It runs through OpenAI and OpenRouter using your own API key, from about $0.006 per minute of audio.
- Released
- Mar 2025
- Pricing
- $0.006 per minute of audio
- Type
- Speech-to-text
- Languages
- Multilingual
Samples
Transcribed by GPT-4o Transcribe via OpenRouter. The same three clips go to every speech-to-text model in the catalog, so the only thing that changes between two models’ transcripts is the model. The clips are synthetic speech made with ElevenLabs v4, and a word that differs from the spoken script is underlined. The numbers clip is left unmarked, since “12” and “twelve” are both right.
Baseline accuracy and punctuation on clean speech
Thanks for joining on such short notice. We moved the launch to Thursday, so could you send me your notes before lunch? I will share the final schedule with everyone tomorrow morning.
Thanks for joining on such short notice. We moved the launch to Thursday, so could you send me your notes before lunch? I will share the final schedule with everyone tomorrow morning.
How dates, amounts, units and a surname are written out
Invoice 4471 is due on March 3rd, 2027. The total comes to $1,249.50 for 12 units, and the parcel weighs 2.5 kilograms. Please call Dr. Elena Markovic at 9:45 a.m. to confirm.
Invoice 4471 is due on March 3rd, 2027. The total comes to $1,249.50 for twelve units, and the parcel weighs 2.5 kilograms. Please call Dr. Elena Markovich at 9:45 AM to confirm.
Background noise, a second accent, speaker changes
Excuse me, is this seat taken? No, go ahead. Are you heading to the conference as well? I am. Do you know which stop it is? The one after the river, I think. We can walk over together.
Excuse me, is this seat taken?
OpenAI
OpenAI builds GPT, DALL·E, the Sora family, and the open-weight gpt-oss models, and has been a central force behind the modern wave of generative AI.
openai.com ↗OpenAI's flagship GPT-6 model for complex reasoning, coding, research, and long-running agent work, with vision and a 1M-token context window.
GPT 6 Astra in OpenAI's pro reasoning mode, which works longer on each answer for the highest quality on hard tasks.
OpenAI's life sciences model, with specialized biological reasoning and scientific tool use. Only organizations approved through OpenAI's trusted-access program can call it, for internal research.
OpenAI's cybersecurity model for investigating vulnerabilities, reproducing them in an authorized test environment and verifying fixes. Only organizations approved through OpenAI's Daybreak program can call it.
OpenAI's update to GPT 6 Sol, the cost-efficient high-end GPT-6 tier, for agentic coding and document work, with vision and a 1M-token context window.
OpenAI's fast, efficient GPT-6.1 tier for visual reasoning, computer use and clear writing, improving on GPT 5.6 Terra with a 1M-token context window.