CHINESE SUBJECT PRODUCT

AI Chinese Essay Marking

Traditional Chinese marking — CDC-aligned, school-rubric friendly

HK-tuned AI marker for Chinese writing. Natively trained on Traditional Chinese, Cantonese-inflected phrasing, and HK curriculum (narrative, expository, argumentative, classical Chinese translation). TSA- and DSE-tested within 5% of human markers; 95% OCR on HK handwriting; 100,000+ student essays graded.

TeachersStudents
ChineseTraditionalClassical ChineseCDCTSADSEP3–P6S1–S6

100K+ HK Chinese handwritten essays graded · 95% handwriting OCR · within 5% of human markers

Create new Chinese essay marking task — class, word limit, title, intro
1/5

Create a new Chinese essay marking task

≤5% marking error
95% handwriting OCR

Chinese teacher pain · Essai solution

Marking a class of Chinese essays eats evenings and weekends; manual red-pen never ends.

AI returns a marked draft in 30s within 5% of human markers (TSA & DSE-tested). Teachers only finalise.

Generic AI models flunk Traditional Chinese, Cantonese-inflected phrasing, and classical Chinese.

Traditional-Chinese-native fine-tuning. Handles 記敘, 說明, 議論, 文言文 translation; CDC-aligned.

Handwritten drafts need to be typed up before any AI can mark them.

95% OCR on HK Traditional Chinese handwriting (benchmarked on 100K+ real student essays). Photo → marked.

Key features

Traditional-Chinese-native model

Not Simplified-Chinese translated or an English model with Chinese prompts. Natively trained on HK book-style Chinese.

Within 5% · 2× more accurate

TSA and DSE past-paper benchmarked; 2× more accurate than GPT-4/Gemini with a generic Chinese prompt.

Handwriting OCR · 95%

95% OCR on HK Traditional Chinese handwriting. Extremely messy handwriting flagged for teacher review.

Full genre coverage

Narrative, expository, argumentative, descriptive, classical-Chinese translation, reading report — HK primary + secondary.

School-based rubric

Plug in your school’s Chinese rubric; Essai tunes outputs to match. Or align with CDC / TSA / DSE out of the box.

Class report · Word export

Auto class report: weakness heatmap, sample essays, suggested phrases and vocabulary. One-click Word export.

How it works

1

Teacher sets the basics

Enter the essay topic, word limit, rubric (school-based or CDC / TSA / DSE), and assign a class.

2

Submit — teacher or student

Teacher uploads images or PDFs of handwritten drafts, or assigns students to submit from their own accounts.

3

Export Word or release to students

After review, export the class report as Word for printing or release it directly to student accounts.

Genre + grade coverage

 P3P4P5P6S1S2S3S4S5S6
Narrative
Expository
Argumentative
Classical Chinese translation
Reading report
100,000+

HK Traditional-Chinese handwritten essays graded · 95% handwriting OCR · AI scores within 5% of human markers (TSA & DSE-tested)

HK primary Chinese teacher

“Clean UI across desktop, tablet, and mobile. Marking speed is impressive — I can focus my attention on structure and argumentation instead of red-penning every character.”

— HK primary school Chinese teacher

FAQ

Does Essai support Traditional Chinese?
Yes. Trained specifically for HK Traditional Chinese book-style writing — not translated from a Simplified model.
Does it handle classical Chinese (文言文)?
Yes. Handles classical-to-vernacular translation, parts-of-speech classification, and function-word usage scoring. Trained on S2–S6 past papers.
How accurate is the handwriting OCR?
95% on HK Traditional-Chinese handwriting. Extremely messy handwriting is flagged for teacher review rather than silently mis-read.
Can we plug in our school’s own rubric?
Yes. Upload your rubric; Essai tunes outputs. Also supports CDC / TSA / DSE standards out of the box.
Is student data used to train AI?
Never. Each school has its own tenant; Essai Sovereign (on-prem) available for stricter isolation.
Can we fund this with the EDB HK$500k programme?
Yes. Essai meets EDB Circular 221/2025. We provide the application template.

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