Transcription app

AutoSubs

by Tom Moroney

A free subtitle generator that transcribes audio and video on your own machine and can send styled subtitles to DaVinci Resolve, Premiere Pro and After Effects.

Mac
Windows
Linux

Official site engines

Speech engines it runs

Whisper by OpenAIWhisper large-v3-turbo, English: 3.92%Whisper large-v3-turbo, No noise: 3.78%Whisper large-v3-turbo, 20 dB: 4.2%Whisper large-v3-turbo, 10 dB: 5.51%Whisper large-v3-turbo, 5 dB: 13.92%Whisper large-v3-turbo, 0 dB: 66.09%
NVIDIA Parakeet by NVIDIAParakeet TDT v3, English: 4.48%Parakeet TDT v3, No noise: 4.44%Parakeet TDT v3, 20 dB: 4.44%Parakeet TDT v3, 10 dB: 4.48%Parakeet TDT v3, 5 dB: 7.85%Parakeet TDT v3, 0 dB: 44.47%
NVIDIA Canary by NVIDIA
Moonshine by Moonshine AI
SenseVoice by FunAudioLLM team

Word error rates from our own tests on public recordings: English in a quiet room and with background talk. Lower is better.

Key figures

$0 an hour of audio, AutoSubs

Every figure about AutoSubs

Each figure is a row of a research dataset. Open it for the exact words of its source or the exact request it was read from.

Speech-to-Text API Pricing: Cost per Hour of Audio

AutoSubs, free and open source2026-100 $ per hour

All transcription, compared

Speech engines it runs

Key figures

Every figure about AutoSubs

Speech-to-Text API Pricing: Cost per Hour of Audio

Other transcription