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WhisperX vs aTrain: catalog facts
WhisperX	aTrain
Free Free to use from its GitHub repository.	Free The open-source software is available without a license fee. Hosting, hardware and…
Command line	Windows, Linux
Word-level timestamps for subtitles and transcripts Speaker diarization identifies who is talking	Includes speaker detection without uploading recordings.
GPU setup with CUDA and cuDNN can take some troubleshooting Command-line and Python only, no graphical interface	Model downloads and local processing resources are required.
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: AGPL-3.0
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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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