
Popularity
★ 25k
Last update
November 2025
License / pricing
MIT
Category
Voice & audio
What it does
A re-implementation that cuts transcription time and memory use without losing accuracy.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals

Before you start
- Setup difficultyEasy to start
- Command lineRequired
- API keyNot required
- Sends data onlineNo
Judged automatically from the project's own metadata. Always confirm on the official page.
faster-whisper FAQ
- Is faster-whisper free?
- Yes. It runs on your own machine, so there is no usage-based cost either.
- Do I need to install anything or write code to use faster-whisper?
- This is a library meant to be used from code. It is not a standalone app.
- Does faster-whisper work on a phone?
- No. It needs a computer.
- Can I use faster-whisper commercially?
- The licence is MIT, which permits commercial use. Conditions such as keeping the copyright notice still apply, so read the licence text before shipping it inside something.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| faster-whisper (this page) | Required | Not needed | No | No | Yes |
| Whisper | Required | Not needed | No | No | Yes |
| WhisperX | Required | Not needed | No | No | Yes |
| Real-Time-Voice-Cloning | Required | Not needed | Yes | No | Not verified |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.