You explain any topic. AI students ask Socratic, probing questions until the thin spots in your understanding show themselves — then LingJing hands you a clean after-class card: what you clarified, the Q&A, and the gaps still open.
Try it with your own model →Type any topic — a math idea, a language point, a business concept. Speak it like you're the teacher.
Student personas push back with real questions: counterexamples, edge cases, "what if it breaks?" — they never just nod along.
A tidy after-class card: points you nailed, the Q&A, and exactly what's still fuzzy. Review it later; it comes back to test you.
Classroom UI localization to English is in progress — the demo above opens the current build. LingJing is offered free (pay-what-you-want later); no account required to try. Not directed to children under 16 (under 13 in the US) without a parent's permission.
Explain a topic in your own words — it probes back until it finds the gap. It checks whether you truly get it; it will not do the homework for you.
Paste notes, policies, handbooks, docs. Ask, and get answers that point back to the source — not confident guesses.
Turn what you have lived and learned into a private brain you can ask things later — in your words, not a database schema.
No signup. Bring your own key — it stays in your browser and is never sent to any server. Works with free models (e.g. the OpenRouter free tier), so you can try it at zero cost.