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Bilingual subtitles
Show the original captions and translated subtitles together in the player and in the subtitle list.
Chrome extension for YouTube learning
AI subtitles that keep up with the video.
Subi adds bilingual subtitles, AI translation quality options, and word explanations to YouTube so learners can watch, read, and understand in one place.
Subi is preparing its public Chrome Web Store release. Subscription checkout is handled by Creem.
They finally understand the scene.
他们终于看懂了这一幕。
00:08
You can follow fast dialogue without losing the thread.
即使对白很快，也能跟上内容。
00:16
Tap words and phrases for explanations while watching.
观看时可点选单词和短语查看解释。
Built for watching, not tab switching.
Subi focuses on the YouTube viewing workflow: captions, translation, explanation, and export controls are available next to the player.
AI
Quality options
Choose a translation quality tier for different videos, from everyday viewing to more careful learning sessions.
Aa
Word explanations
Select words or phrases from subtitles and get concise explanations without leaving the video.
Plans
Each plan includes monthly credits for AI subtitle translation and word explanations. Credits reset monthly.
$4.99 / month
1,500 credits / month
- For casual YouTube learning
- Bilingual subtitles
- Word and phrase explanations
$9.99 / month
4,000 credits / month
- For frequent learners
- More room for higher quality translation
- Subtitle list and export tools
$19.99 / month
9,000 credits / month
- For heavy watching and study
- Higher monthly credit pool
- Designed for long-form videos