Vimpo vs Language Reactor: learning the language, or making something from the video

Both put two languages on screen at once, so Vimpo and Language Reactor get mentioned together. They're built for different people, though. Language Reactor is for studying a language. Vimpo is for understanding a video, then making something from it.

Same video, same minute:

In VimpoIn Language Reactor

Same video, same minute

Andrej Karpathy — We’re summoning ghosts, not building animals

¿Qué crees que va a tardar una década en lograrse?

What do you think will take a decade to accomplish?

1:46 / 2:26:08Both

Your own model, bought once

Vimpo translates with your own API key, from DeepSeek, OpenAI, Claude, Gemini and others, or with a local model through Ollama or LM Studio. You pay the provider directly for what you use, or nothing at all. Vimpo itself is a one-time purchase. Speech recognition runs on your Mac with Whisper, so videos without subtitles work too, on YouTube, Bilibili or any of a thousand other sites.

Make something from it

Found a moment worth sharing? Pick the lines in Studio (⌘2), press ⌘B, and that's a clip. AI can suggest the parts that stand on their own, and every clip exports with its subtitles burned in:

1. 01

   Pick lines in the transcript

   Click a line, then Shift-click another.

2. 02

   Press ⌘B to make a clip

   Trim it on the timeline; its edges snap to the lines.

3. 03

   Let AI find highlights

   Your own model reads the subtitles and picks moments that stand on their own.

4. 04

   Style the subtitles

   Outline, box or large type, in one language or two.

5. 05

   Export

   Subtitles burned in, or FCPXML to keep editing in Final Cut or Premiere.

Click a line, then Shift-click another.

Trim it on the timeline; its edges snap to the lines.

Your own model reads the subtitles and picks moments that stand on their own.

Outline, box or large type, in one language or two.

Subtitles burned in, or FCPXML to keep editing in Final Cut or Premiere.

Andrej Karpathy — We’re summoning ghosts, not building animals

CinemaStudio

Export

Transcript

1:21En realidad, es mucho más exacto llamarla la década de los agentes.This is really a lot more accurately described as the decade of agents.

1:46¿Qué crees que va a tardar una década en lograrse?What do you think will take a decade to accomplish?

1:56Piénsalo casi como un empleado o un becario que contratas para trabajar contigo.You should think of it almost like an employee or an intern that you would hire to work with you.

2:13Si hoy no lo haces, es porque todavía no funcionan.The reason you don't do it today is because they just don't work.

2:23No tienen aprendizaje continuo. Les cuentas algo y no lo recuerdan.They don't have continual learning. You can't just tell them something and they'll remember it.

2:28Resolver todos esos problemas llevará más o menos una década.It will take about a decade to work through all of those issues.

2 lines selected

1:46 – 2:13 · 0:27

Make Clip

En realidad, es mucho más exacto llamarla la década de los agentes.

This is really a lot more accurately described as the decade of agents.

¿Qué crees que va a tardar una década en lograrse?

What do you think will take a decade to accomplish?

Si hoy no lo haces, es porque todavía no funcionan.

The reason you don't do it today is because they just don't work.

Si hoy no lo haces, es porque todavía no funcionan.

The reason you don't do it today is because they just don't work.

00:01:46:12

IO

ClipsSubtitle Style

No clips yet

Clips1 · 0:27 total2 · 0:52 total3 · 1:15 total

The decade of agents1:21 – 1:46 · 0:25

What will take a decade?1:46 – 2:13 · 0:27

Why agents don't work yet2:13 – 2:36 · 0:23

AI Highlights

Moments from the subtitles that stand on their own

Find Highlights

AI Picks2 · 0:48 totalAdd All

1The decade of agents1:21 – 1:46 · 0:25

Add to Clips

2Why agents don't work yet2:13 – 2:36 · 0:23

Presets

SubtitlesOutlineSubtitlesBoxSubtitlesLarge

Two Languages

Translation on TopOriginal on Top

TimelineAI Picks 2

PictureSpanishSound

1:301:452:002:152:30

En realidad, es mucho más exacto llamarla la década de los agentes.¿Qué crees que va a tardar una década en lograrse?Piénsalo casi como un empleado o un becario que contratas para trabajar contigo.Si hoy no lo haces, es porque todavía no funcionan.No tienen aprendizaje continuo. Les cuentas algo y no lo recuerdan.Resolver todos esos problemas llevará más o menos una década.

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2

The decade of agents

What will take a decade?

Why agents don't work yet

Export

The decade of agents0:25

What will take a decade?0:27

Why agents don't work yet0:23

Subtitles

Burn InSRT File

Quality

720p1080p

FCPXML, to keep editing in Final Cut / Premiere

CancelExport 3 Clips…

For learning a language, use Language Reactor

Click a word and its dictionary opens, with examples. Less common words are coloured, you can mark the ones you know, and it pauses after every line so you can repeat it. It works on Netflix, and saved words go to Anki. Vimpo has none of this, and doesn't try to.

Side by side

The Language Reactor column is based on languagereactor.com and its Chrome Web Store listing (version 6.0.1, October 2026). In that column, a dash means neither mentions the feature.

Which one to use

• You want to understand the video with your own model, and no subscription: Vimpo.
• You make clips with subtitles from long videos: Vimpo.
• You're studying the language and want a dictionary, word lists and Anki: Language Reactor.

Every Vimpo feature is free during the beta. Download it here.