WhisperUI

Speech to Text with OpenAI Whisper

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Frequently asked questions

Answers to the most common speech-to-text questions about API keys, file limits, supported formats, and transcription behavior.

Is this app free?
Whisperui.com is free to use with some basic features. You will need a working OpenAI API key to use the app, and you pay OpenAI directly for the amount of usage tied to that key.
What are the premium features?
The premium features include uploading multiple files at once, unlimited daily file uploads, and transforming audio files into SRT files.
How do I get an OpenAI API key?
You can get your API key directly from https://platform.openai.com/account/api-keys.
Is my API key safe?
Your API key is stored locally on your browser.
What can I do with WhisperUI?
You can transform audio files into text and SRT files by using OpenAI Whisper Speech to Text.
What is OpenAI Whisper?
Whisper is an ASR system trained on a large multilingual dataset, which helps it perform well with accents, background noise, technical language, and multilingual transcription tasks.
How does the audio-to-text transformation process work?
You upload an audio file to the web app, WhisperUI sends it through OpenAI Whisper, and the resulting text is displayed for review and download.
What types of audio files are compatible with WhisperUI?
WhisperUI supports MP3, MP4, MPEG, MPGA, M4A, WAV, OGG, and WEBM.
What is the maximum allowed file size?
OpenAI limits file uploads to 25MB. If your file exceeds that limit, you can compress it for free here.
How accurate is the transcription process?
OpenAI Whisper is known for high accuracy, but final transcription quality still depends on the audio quality and the clarity of the spoken words.
How long does it take to transcribe an audio file?
The time depends on file length and audio complexity, but most files are transcribed within a few minutes.
What are the supported languages?
OpenAI Whisper supports several languages including English, Spanish, French, German, Chinese, and more.
OpenAI quota exceeded message: what does it mean?
This message usually appears when your OpenAI account does not have enough credits or when credits were recently added. In some cases, it can take up to 6 hours for OpenAI to enable your credits.