Pricing
Wispr Flow: $15/month or $144/year after a 14-day trial. Jarvis: $0, free forever, open source.
Accuracy
On a 90-minute technical English corpus: Wispr Flow 3.4% WER, Jarvis 3.1% WER. Both well within margin of error for a typical user. Wispr Flow's "smart formatting" rewrites your speech aggressively; Jarvis preserves what you actually said.
Speed
Time from hotkey release to text appearing: Wispr Flow 410ms, Jarvis 240ms. Wispr Flow round-trips audio to its servers; Jarvis runs the model locally.
Privacy
Wispr Flow processes audio on its servers and requires a login. Jarvis runs entirely on-device, has no account system, and is open source, so you can read the code and verify.
App control
Wispr Flow is dictation-only. Jarvis adds voice-driven app actions: switch apps, send messages, open files, run multi-step chains.
When to pick each
Pick Wispr Flow if you want a polished UI and don't mind subscriptions or cloud-processed audio. Pick Jarvis if you want free, private, faster dictation plus the ability to actually do things on your Mac with voice.