Microsoft's MIT licensed VibeVoice speech-to-text model (think Whisper with speaker diarization) is really good – my notes on running the 5.71GB 4bit MLX conversion on an M5 MacBook, using about 60GB of RAM at peak and transcribing 1hr of audio in ~9 mins
VibeVoice: MIT-Licensed Speech-to-Text with Diarization
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