๐Ÿš€ The tool is now in BETA โ€” on sale end of September.
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Subtitle Studio / FAQ

FAQ

All frequently asked questions about Guifilab Subtitle Studio.

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General

Does it really run locally?

Yes. Transcription runs on your own Mac. ChatGPT correction (Pro) uses your own API key, so you keep control over your data.

Who is Subtitle Studio for?

For video editors, content creators and copywriters who want fast, reliable subtitles without transcribing or timing manually. Made for creators, not as a professional subtitle suite.

Which systems does it run on?

On a Mac with Apple Silicon (M1 or newer). A Windows version is planned.

How do I get the best results?

Export an audio track without music and sound effects. Clear, dry speech delivers the most accurate subtitles; music and SFX can interfere with transcription.

Budget & Pro

What's the difference between Budget and Pro?

Budget is a local subtitle tool (Dutch and English) for one user. Pro adds AI correction, 90+ languages, network access (up to 10 users) and speaker detection.

Can I try it first?

Budget is free for 14 days. Pro is purchased directly, with a 14-day right of withdrawal โ€” if you're not satisfied, you always get your money back.

Can I upgrade from Budget to Pro later?

Yes. Start with Budget and switch to Pro when you need AI correction, more languages or team access. Your settings, terminology and presets are preserved.

How many devices can I use?

A licence covers one device at a time, and is easy to transfer to another Mac. Pro also offers network access for your team.

AI & costs

Do the AI features cost money?

The AI features work via optional connections with your own keys. ChatGPT requires your own OpenAI API key and charges per token โ€” in practice a few cents to a few euros per hour of video. Speaker detection uses a free HuggingFace token. Transcription itself runs locally.

What exactly does ChatGPT correction do?

Whisper converts your audio to text. ChatGPT then makes subtitles more readable and consistent, especially with fast speakers or unclear pronunciation. You control how active the correction can be.

Do my recordings stay private?

Yes. Transcription processes everything on your own machine: no upload, no cloud queue. Only if you enable AI correction does the text (not the video) go via your own OpenAI key to OpenAI.

Languages & export

Which languages are supported?

Budget subtitles in Dutch and English. Pro does 90+ languages at top quality, with excellent results for NL, EN, DE, FR, ES, IT and PT.

What formats can I export to?

SRT and VTT, directly importable in Premiere Pro, DaVinci Resolve, Final Cut and on the web. Pro also supports TC-offset and 9ร—16 export; Enterprise adds EBU-STL.

Will there be a Windows version?

Yes, it's planned. The Mac version (Apple Silicon) is currently the most refined and fastest.

Don't see your question?

Email us at support@guifilab.nl โ€” we respond quickly.

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