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Speed of Sound vs Whispering: catalog facts
Speed of Sound	Whispering
Free Free and open source under the MIT licence; cloud LLM polishing uses your own provider.	Free The app is free; cloud transcription providers may charge for their API use.
Linux	Windows, macOS, Linux
Offline transcription with Whisper, Parakeet and Canary models Types into any app on X11 and Wayland	Choice of local or cloud transcription models Built for quick dictation into text
Linux only Accuracy depends on the model you download and your hardware	Cloud models need an API key from a provider Local models depend on your hardware for speed
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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