Language exam simulator

Generates and grades original exam papers across all four skills, speaking included, with the cost of every generation recorded. In production.

README.md

Anonymized case study: client, data and code are under NDA.

The problem

Preparing for a certified language exam takes many realistic papers, and writing them by hand is slow and expensive.

What it does

Four modules: reading, writing, listening and speaking, the last one with a voice engine.
Generation from the dashboard: pick the model, every cost is recorded and the price per paper is always known.
Grading with feedback in the style of a tutor, reviewed by a language expert.

Constraints

Same structure as the real exam, but original interface, images and content: official material never enters the project.

Now

Reading, writing and listening are heading towards stability, speaking is under construction. The engine that generates papers runs as workers and shares a common dictionary, hints and per-document grading through a cache, so each paper costs less.