Ghost Pepper Wins for Dictation
I was wrong about Aqua Voice being the ceiling for fast dictation. Ghost Pepper is fantastic, and my Aqua subscription is cancelled. It's free, MIT-licensed, 100% local (WhisperKit plus a small Qwen model for cleanup), and astoundingly fast on Apple Silicon.
The measure that matters is developer-speak. Saying "tilde slash dev" should produce ~/dev. Saying "eich mack or jay double-you tee" should produce "HMAC or JWT". Ghost Pepper gets both right, every time.

Key bindings
The defaults ship as hold-Control to talk, but my muscle memory is from Aqua: right Option as push-to-talk. Reusing those keys worked fine. Aqua's double-tap-to-go-hands-free mode is the one feature I miss, and Ghost Pepper doesn't have it yet, so Shift+RightOpt is standing in. On my Keychron K2 the M1 macro key handles it nicely. Might take a swing at adding the double-tap toggle upstream.
The cleanup model is a little too honest
Aqua quietly filtered out coughs, keyboard noise, and other non-speech. Ghost Pepper does not. [keyboard clacking] and [snorts] have both shown up in my output, courtesy of Whisper's annotation habit leaking through the cleanup pass. Guess I'll have to be a little more civilized at the desk.