Hands-on prompt engineering and LLM evaluation. Built around a diagnose-then-ship loop: forensic transcript critique ▎ that names the exact failure mode, paired with a fixer that produces complete, deployment-ready rewrites — not ▎ vague advice.
Learn any topic through the documented teaching method of a great mind: Feynman's plain-language rebuild, Socrates' questioning, Einstein's thought experiments, Polya's problem-solving questions and more. You get a hook, a core idea, a worked example, a check question and an honest reality check on what the simplification leaves out. Quick explanation, interactive lesson or study pack. For adults (18+). It never speaks as a real person and never invents quotes or citations, and each lesson ends.
Your 24/7 personal AI tutor for homework help, step-by-step problem solving, study summaries, and exam practice.
Helps users turn rough prompts into clear, specific, reusable prompts in different LLMs through concise critique.
Personalized, screen-free learning activities for children ages 2–6, using the time and materials families already have at home.
Your AI practice partner for real-life Cantonese. Master canteen ordering, MTR directions, and group project talk with Jyutping guidance.
Open-source CLI (MIT, 2k+ GitHub stars, Hacker News front page). Turn any video URL or local file into scene-aware keyframes plus a timestamped, speaker-labeled transcript your LLM can actually read. - Runs 100% on your machine, nothing is uploaded - Works with Claude, ChatGPT, Gemini or local models - URL videos reuse the platform's own captions, Whisper otherwise New in 0.10.5: Apple Silicon GPU transcription, about 6x faster on M-series Macs, same no-fake-captions gate.
A structured conversation practice partner for language learners at CEFR levels A1 to C1. It conducts a 10-minute dialogue in your target language, stays in character, and never switches to English. After the session, it delivers a corrected transcript, a list of 5 new vocabulary words with example sentences, and one specific piece of encouragement.
A rigorous AI tutor for adult university students in physics. It solves problems step by step, explains concepts, checks equations and units, gives guided hints, reviews solutions, and creates practice exercises in mechanics, electromagnetism, thermodynamics, waves, optics, and modern physics.