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Free AI Tool
DeepSeek Chat — The Best Free AI Assistant for Hong Kong Teachers
Free, no VPN, no credit card required. Supports file uploads (PDF, Word, Excel, images) and has a 1M token context window.
The Bottom Line
Free, no VPN, no credit card, works in Hong Kong. Supports file uploads and Cantonese. The 1M token context window means you can upload entire textbooks.
Teacher Use Cases
1. Lesson Planning
You: "I'm teaching fraction addition to P.4 tomorrow. Give me 3 activities." DeepSeek: Generates 3 activities with step-by-step teaching instructions.
2. Grading Feedback
You: Upload student_essay.txt, say "Give suggestions for improvement, don't rewrite it." DeepSeek: Provides paragraph-by-paragraph feedback with improvement directions.
3. Quiz Generation
You: "Create 10 P.5 English MC questions about past tense, with answers." DeepSeek: Generates questions with explanations.
4. Document Analysis
Upload PDF, Word, Excel, or images — DeepSeek analyzes the content. Great for summarizing EDB circulars and curriculum documents.
Comparison
| DeepSeek | ChatGPT Free | Gemini | |
|---|---|---|---|
| Works in HK? | ✅ Direct | ✅ Direct | ⚠️ VPN needed |
| Free? | ✅ Completely | ✅ Has free tier | ✅ Has free tier |
| Cantonese? | ✅ Good | ✅ OK | ✅ OK |
| File upload | ✅ PDF/Word/Excel/Images | ✅ Limited | ✅ Google ecosystem |
| Context length | 1M tokens (huge) | Limited | Limited |
Important Notes
- DeepSeek is a Chinese company — avoid sensitive topics or national security-related questions
- Fine for teaching use, but don't upload student personal data (ID numbers, phone numbers, etc.)
- Each teacher should register their own account — don't share
If you've never used any AI tool, DeepSeek Chat is the best place to start. Free, simple, works in Hong Kong. No reason not to try it.