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Chinese Fluency
Accelerate your learning curve with our premium, meticulously formatted learning materials and study resources. Clear context for your studies.
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Accurate Context
Learn safely knowing every word, Pinyin mapping, and English translation is thoroughly verified.
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Value Bundles






HSK 1–6 Complete Vocabulary & Sentence Pack
The ultimate bundle. Get all 5,000 HSK words precisely mapped to beautifully formatted example sentences with Pinyin and translations.



HSK 1–3 Junior Vocabulary Pack
Master the fundamentals. Get all HSK 1, 2, and 3 words precisely mapped to example sentences.



HSK 4–6 Mastery Vocabulary Pack
Reach advanced proficiency. Complete collection of HSK 4, 5, and 6 words with context-rich sentences.
HSK Level Workbooks
Comprehensive vocabulary and sentence mapping for specific HSK targets.

HSK 6 Vocabulary
Master advanced Chinese with 2,500 core words accompanied by 5,000 example sentences.

HSK 5 Vocabulary
Bridge the gap to fluency with 1,300 essential upper-intermediate words and 2,600 examples.

HSK 4 Vocabulary
Solidify your foundation with 600 intermediate words and 1,200 practical examples.

HSK 3 Vocabulary
Move beyond the basics with 300 pre-intermediate words and 600 context-rich examples.

HSK 2 Vocabulary
Expand your vocabulary with 150 beginner words and 300 easy-to-understand sentences.

HSK 1 Vocabulary
Start your journey. Learn the absolute essential 150 words and 300 foundational sentences.
The CILI Engine
Built for Data.
Every sentence in our library is treated as high-quality linguistic data. We provide the structure you need for deep immersion and technical integration.
Structured JSON Format
Full access to IDs, simplified/traditional characters, verified pinyin, and semantic mapping.
Study Pack Studio
Our internal engine for generating custom PDF workbooks with precision layout and style control.
CILI Blitz
Learn Chinese by Playing.
Our gamified web app turns HSK vocabulary into an interactive experience. Battle friends in real-time, climb the leaderboard, and build daily streaks — all while mastering Mandarin.
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Everything you need to know about CILI learning materials.
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