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Buzz vs WhisperX: catalog facts
Buzz	WhisperX
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free to use from its GitHub repository.
Windows, macOS, Linux	Command line
Supports microphone transcription and subtitle exports.	Word-level timestamps for subtitles and transcripts Speaker diarization identifies who is talking
Processing speed depends on your hardware and selected model.	GPU setup with CUDA and cuDNN can take some troubleshooting Command-line and Python only, no graphical interface
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.