YouTube
BilibiliNew · Page translation
Articles, docs, forums, X posts… tap the floating button and each paragraph gets its translation right below, with layout, links, and code left intact.
How large language models learn
大規模言語モデルの学習は二段階です。まずインターネット上のテキストで事前学習し、次に役立つアシスタントへと微調整します。
Large language models are trained in two stages: pre-training on internet text, then fine-tuning into a helpful assistant.
最初に `npm install` を一度実行し、読んでいる間は開発サーバーを起動したままにします。
Run `npm install` once, then keep the dev server open while you read.
Translations sit under every paragraph, or switch to translation only. Pick from four translation styles.
Bold text, links, and inline code stay as they are. Buttons, tables, iframes, and Shadow DOM text get translated too.
Toggle it from the floating button, a shortcut, or the right-click menu. Sites you keep translated stay translated next time.
Free Microsoft and Google engines work out of the box. Pro members get context-aware Lumi AI translation in multiple languages, or bring your own API key.
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Engines
Why install
Each friction has a matching move in Lumi.
You cannot keep up in another language
No captions? Transcribe first. Then refine the breaks and show a bilingual track. Stuck on a line? Click it and hear it again.
One question and you leave the page
No new tab. Answers carry timestamps, so one click takes you back to the sentence.
Video is worse than text for finding things
Chapters, a readable article, and clickable timestamps. Replay a moment without dragging the scrubber.
The page is too loud
Lumi stays in the side rail. Recommendations, danmaku, and the next-up teaser stop pulling you away.
You forget it two days later
After you sign in, history and the library remember where you were and what you asked.
FAQ
All core features are free to try. Free accounts receive 200,000 Lumi AI tokens, while Pro includes 10,000,000 tokens each month. Bringing your own API key is always unmetered.
YouTube and Bilibili are supported now. Vimeo, Coursera, and other course platforms are next on the roadmap.
Yes. On any page, use the floating button, a keyboard shortcut, or the right-click menu to translate the whole page bilingually or as translation only. Free Microsoft and Google engines are available to everyone; translating pages with Lumi AI requires Pro, or you can use your own API key.
You can use Lumi AI with zero setup, or bring your own key for DeepSeek, OpenAI-compatible, Anthropic and Gemini models — pick whichever fits you in extension settings.
While signed out, progress stays on this browser. After you sign in, recent study and library items sync so you can continue on another device. We do not sell that data.
Yes. When the platform provides captions Lumi uses them; for videos with no captions at all, Lumi generates subtitles from the audio first, then translates, summarizes and chats over them.
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