How to Use FluentAI
Turn any video into a language lesson.
The Basics
Getting Started
- Go to YouTube, Netflix, Disney+, or Prime Video
- Play any video with subtitles
- FluentAI activates automatically
That's it. Your subtitles are now interactive.
[GIF: FluentAI activating on YouTube - show the bottom bar appearing and subtitles becoming interactive. ~4 seconds]
Word Interactions
Hover = Translation
Move your mouse over any word. Boom - instant translation.
[GIF: Hovering over a word, showing the quick translation popup. ~3 seconds]
Click = Everything You Need
Click a word to see:
- Pronunciation (tap to hear it)
- Translation in context
- Examples from real content
- Related words
[GIF: Clicking a word, detailed popup opens with all the info. ~4 seconds]
Color-Code Your Vocabulary
Right-click any word to mark your progress:
| Status |
|---|
| Learning |
| Known |
| Ignored |
Words cycle through: Unknown → Learning → Known → Ignored
[GIF: Right-clicking a word, status changes, color updates in subtitle. ~4 seconds]
Your Notebook
Every word you mark as "Learning" (also called "bookmarking") gets saved here.
What's in Your NotebookLearn more
For each saved word or phrase, you'll see:
- Translation - meanings with usage frequency
- Transliteration - pronunciation in Latin characters
- Context - the sentence where you found it
- Usage examples - see it used in other sentences
- Dictionary form, synonyms, antonyms, and more
[GIF: Opening Notebook, scrolling through saved words, using search/filter. ~5 seconds]
Organize with ListsLearn more
Create custom lists to categorize your vocabulary:
- Add words from Notebook to any list
- Add new vocabulary directly in a list
- Generate entire lists with AI from your descriptions
Practice with Mini-GamesLearn more
Use our spaced repetition system with mini-games like Flashcards. Practice any words from your Notebook or Lists.
Export to AnkiLearn more
Export your saved words as flashcards for spaced repetition practice outside FluentAI.
Settings
Click the gear icon on the bottom bar.
Languages
- Learning language - the language you're studying
- Native language - for translations
Playback
- Basic - continuous playback
- Pause mode - pause after each subtitle, with optional auto-resume
- Repeat mode - replay subtitles with AI voice or scene replay
Audio
- Sound effects volume
- AI text-to-speech volume
- AI reading speed
- AI voice selection - choose from multiple voices
Word Features
- Show base form - dictionary form above words
- Pause on word hover - video pauses when hovering
- Resume on word leave - auto-resume when leaving
- Word merging - combine words into phrases
- Speak word on popup - hear pronunciation automatically
Subtitles
- Show learning subtitles - toggle on/off
- Show native subtitles - toggle on/off
- Use original subtitles - prefer platform subtitles
- Transliteration - Latin characters for non-Latin scripts
- Blur learning subtitles - reveal on hover
- Blur native subtitles - reveal on hover
- Live word highlight - highlights as words are spoken
Subtitle List
- Show subtitle list - scrollable panel with all subtitles
- Show translation in list
Styles
- Learning subtitle styling - size, color, opacity
- Native subtitle styling - size, color, opacity
- Theme - light/dark mode
- Word status colors - customize status highlighting
[GIF: Opening settings, exploring different menus - Languages, Playback, Subtitles, Styles. ~5 seconds]
Keyboard Shortcuts
| Do this | Press |
|---|---|
| Play/Pause | Space |
| Toggle blur | B |
| Settings | S |
Customize in Settings → Keyboard Shortcuts.
Pro Tips
Challenge yourself
Turn on Blur Mode. Only peek at translations when you're truly stuck.
Build vocab fast
Right-click words you want to remember. Review in Notebook later.
Use Repeat Mode
Replay each subtitle with AI voice to practice pronunciation.
Show base forms
Enable "Show Base Form" to see dictionary forms above conjugated words.
Anki users
Export your saved words as flashcards. Spaced repetition = long-term memory.
Non-Latin scripts?
Enable Transliteration to see pronunciation in Latin characters.
More on the Website
Beyond videos, FluentAI offers a full learning dashboard. Explore these features: