AI learning platformLive

Lernen

Any topic, taught live by AI.

Lernen turns any topic or document into a complete interactive lesson in minutes, with slides, quizzes and live simulations, then teaches it in a multi agent AI classroom where an AI teacher explains, an AI assistant guides and AI classmates discuss it with you, in twelve languages.

Open LernenAll products
To a full lesson
MinutesTo a full lessonFrom one sentence or an attached PDF.
Languages
12LanguagesAcross the whole classroom, from English to Japanese.
Class
LiveClassAn AI teacher and classmates who teach it with you.
The Lernen landing page, black and white, with the headline Turn any topic into a live class and an illustration of a lesson on the phases of the Moon.

Capabilities

What Lernen does

  • 01

    One prompt to a lesson

    A sentence or an attached PDF becomes an outline first, then a sequence of scenes. A short lesson is ready in a few minutes.

  • 02

    A class cast for the topic

    Each lesson gets its own teacher, teaching assistant and classmates, with names and personalities suited to the subject. The teacher talks through each slide and points at what it is explaining.

  • 03

    Scenes of several kinds

    Explaining gets slides, checking gets a quiz, and trying things out gets an interactive simulation or a project.

  • 04

    A library and share links

    Lessons are kept in a library with search, rename and delete. A share link freezes a copy that anyone can play read only, with the slides, narration, whiteboard replay, quizzes and simulations.

  • 05

    Accounts with fair limits

    Anyone can sign up and is signed straight in. A daily lesson limit and a chat budget are checked before every model call, and every call is recorded with its tokens and cost for the admin panel.

Screens

Inside Lernen

  • The signed in Lernen home, a prompt box for the next lesson with the DeepSeek model chip, and a recent lesson called Why the Moon Has Phases below it.
  • A generated Lernen lesson playing, a slide titled The Moon That Changes Shape with four phase shapes, and the AI teacher narrating it in a caption below.

Architecture

Built end to end

Lernen is designed, built, deployed and run in house, from the interface down to the server it runs on.

  • Interface

    • Next.js 16
    • React 19
    • TypeScript
    • Tailwind CSS 4
    • Zustand

  • AI

    • Vercel AI SDK
    • DeepSeek models
    • Multi agent classroom

  • Data

    • SQLite with Drizzle ORM

  • Infrastructure

    • Docker containers
    • Self hosted server
    • Cloudflare
Live

Lernen is live.

Open to everyone, with an account of your own. Sign up on its site and start in a minute.

Open Lernen

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Three live AI platforms, architected and shipped end to end. The systems I build for clients and employers are in the engineering record.

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