DeepLearning.AI
UnverifiedFreemium
Andrew Ng's AI education platform, with many free short courses on prompting, RAG and agents.
Best for: Developers, AI beginners, Professionals
Learn AIBuild AI apps
Learn AI
From beginner to developer: free courses, prompting guides, open textbooks and AI tools that help you learn.
Courses & tutorials
Free courses, tutorials, prompt guides and open textbooks to learn AI properly.
Hugging Face Learn
UnverifiedFree
Hugging Face's free official courses on LLMs, agents, diffusion and more.
Best for: Developers, Researchers
Learn AIBuild AI apps
Google AI Essentials
UnverifiedPaid
Google's beginner-friendly workplace AI certificate course.
Best for: AI beginners, Professionals
OpenAI Academy
May be limited in HKFree
OpenAI's free learning hub for ChatGPT skills, education and workplace AI.
Best for: AI beginners, Teachers, Professionals
Prompt Engineering Guide
UnverifiedFree
An open-source guide to prompt and context engineering, available in Chinese.
Open sourcedair-ai/Prompt-Engineering-Guide80,039 Stars
Best for: AI beginners, Developers, Professionals
AI Agents for Beginners
Available in HKFree
Microsoft's open-source, 18-lesson course on building AI agents.
Open sourcemicrosoft/ai-agents-for-beginners79,582 Stars
Best for: Developers, AI beginners, Students
Learn AIAI agents
Hello-Agents
Available in HKFree
Datawhale's open-source Chinese tutorial on building agents from scratch.
Open sourcedatawhalechina/hello-agents86,954 Stars
Best for: Developers, Students
Learn AIAI agents
Learn with AI
Personalised learning, AI tutoring, language practice and teacher tools.
Google Gemini
Available in HKFreemium
Google's multimodal assistant, deeply integrated with Search and Google apps — the web app now officially supports Hong Kong.
Best for: Everyone, Students, Professionals
Everyday Q&AWriting
豆包 Doubao
UnverifiedFree
ByteDance's all-round Chinese AI assistant for writing, images and voice chat.
Best for: Everyone, Students, Creators
Everyday Q&AWriting
Grammarly
UnverifiedFreemium
Your always-on English editor: grammar, rewrites and tone.
Best for: Students, Professionals, Researchers
Grammar & polishWriting
Gemini Notebook（NotebookLM）
Not available in HKFreemium
An AI research assistant grounded in the sources you upload (formerly NotebookLM).
Best for: Students, Teachers, Researchers
Learn from your filesKnowledge base
Khanmigo
UnverifiedFreemium
Khan Academy's AI tutor and teaching assistant that guides students instead of giving answers.
Best for: Students, Teachers
AI tutoringLesson planning
Duolingo
UnverifiedFreemium
Gamified language learning with AI characters to practise speaking.
Best for: Everyone, Students, AI beginners
Language learningQuizzes & flashcards
Speak
UnverifiedPaid
An AI speaking coach for real conversation practice without a live tutor.
Best for: Professionals, Students
Language learningAI tutoring
Quizlet
UnverifiedFreemium
Turns your notes and slides into flashcards and practice tests.
Best for: Students, Teachers
Quizzes & flashcardsLearn from your files
MagicSchool
UnverifiedFreemium
An AI platform built for teachers, with dozens of planning, assessment and communication tools.
Best for: Teachers
Lesson planningQuizzes & flashcards
Consensus
UnverifiedFreemium
An AI academic search engine that answers questions from peer-reviewed papers.
Best for: Researchers, Students, Teachers
Academic papersDeep research
DeepTutor
Available in HKFree
An open-source lifelong personalised AI tutor from HKU's Data Intelligence Lab.
Open sourceHKUDS/DeepTutor58,981 Stars
Best for: Students, Teachers, Researchers
AI tutoringLearn from your files