Acknowledgements

Verba runs on-device using open-source software and models. We're grateful to their authors. Transcription happens on your Mac with the models below.

Speech-recognition models

OpenAI Whisper
© 2022 OpenAI · MIT License
NVIDIA Parakeet TDT 0.6B v3
© NVIDIA · CC-BY-4.0 · used as a Core ML conversion (modified)

Frameworks & converted weights

WhisperKit
© 2024 argmax, inc. · MIT License
Whisper Core ML weights
converted by Argmax, derived from OpenAI Whisper (MIT)
FluidAudio
© FluidInference · Apache License 2.0
Parakeet Core ML weights
converted by FluidInference, derived from NVIDIA Parakeet TDT v3 (CC-BY-4.0)

Supporting libraries

Sparkle
MIT License
swift-transformers · swift-jinja
Apache-2.0 · Hugging Face
Apple swift-argument-parser, swift-collections, swift-crypto, swift-asn1
Apache-2.0

NVIDIA Parakeet TDT v3 is used under CC-BY-4.0 (https://creativecommons.org/licenses/by/4.0/), as a Core ML conversion of the original weights. Full license texts ship inside the app.