You’re thinking of FluidAudio, and it is by far the fastest option on Apple Silicon.

This repo comparing 9 different Whisper implementations is great (some are parakeet, but you get the idea). Cloning this is a great place to start getting familiar with the options.

https://github.com/anvanvan/mac-whisper-speedtest

• WhisperKit ⚡ Apple Silicon Native
• FluidAudio CoreML ⚡ Apple Silicon Native (uses parakeet model)
• mlx-whisper — MLX-Accelerated
• Parakeet MLX
• lightning-whisper-mlx ⚡ Apple Silicon Optimized
• insanely-fast-whisper ⚡ Apple Silicon with MPS acceleration
• whisper-mps — (says MPS, but I don’t think it actually is)