CaptionLab runs OpenAI's Whisper — an open speech-recognition AI model — directly on your own computer's hardware, instead of calling a cloud AI service.
Most "AI-powered" editing tools send data to a remote model hosted by the vendor. CaptionLab downloads the AI model itself to your machine and runs inference locally — the same underlying technique used by on-device AI features in modern phones and laptops, applied to video transcription.
The same open-source model used by many cloud transcription services, just executed on your own processor.
Uses your Mac's Neural Engine or an NVIDIA GPU on Windows for faster local inference.
Your audio is never sent to OpenAI, Adobe, or any third party for processing.
Cloud AI transcription typically means faster iteration on the vendor's side (easier to update the model) at the cost of your data leaving your machine and often per-minute billing. Local AI trades a one-time setup and hardware dependency for privacy and no ongoing cost — for editors handling sensitive footage, that trade is usually worth it.
One-time $39. Works offline. 14-day money-back guarantee.
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