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快譯通 AI
Kuaiyi Translate — Chinese-focused multi-format AI translation (PDF / video / EPUB / web) with bilingual side-by-side
Part of this entry was LLM-drafted and is being polished.
Kuaiyi (literally 'fast translate') is one of the Chinese-sphere AI translation products that emerged in the GPT-3.5 era and survived. It specializes in document-format-preserving translation: drop in a PDF and get back a layout-preserved bilingual PDF (English original on left page / Chinese translation on right page, formulas / tables / images intact). Same flow for EPUB, .docx, .pptx, video subtitle (.srt). For browsing it has a Chrome extension similar to Immersive Translate but focused harder on Chinese as both source and target. Free tier handles light use; paid unlocks larger files + premium models (DeepSeek, Claude, GPT). Best fit: anyone who needs to read or distribute long-form English / Japanese / Korean content in Chinese while preserving layout.
Editor's verdict
Solid choice for layout-preserving document translation into Chinese — PDFs especially. Immersive Translate is better for browser reading (free, unlimited, sponsor-supported); Kuaiyi is better for offline document workflow. For raw quality on novel Chinese, DeepL still wins on European languages but its Chinese has gotten worse since 2023.
Use cases
- PDF 雙語對照翻譯
- 影片字幕一鍵翻
- 網頁沉浸式翻譯
- EPUB 電子書翻譯
- Word / PPT 保留版面翻譯
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Last updated: 2026-04-29