Teachers spend more time preparing to teach than actually teaching. Scouring textbooks, writing lectures, designing labs, building assessments — it's an enormous amount of work, and most of it happens before a single student walks through the door.
We built Chelle because we believe AI can do the heavy lifting of course preparation, freeing teachers to focus on what matters most: teaching.
Most AI tools generate content from a general-purpose model. The results sound plausible but aren't grounded in anything specific. Chelle takes a fundamentally different approach.
When you upload a textbook, Chelle builds a Knowledge Model — a structured representation of every concept, connection, and learning objective in your source material. Every activity Chelle generates traces back to specific concepts in this model, with citations to the original text.
This means no hallucinations, no generic filler, and no content that contradicts your textbook. Everything is grounded in your material.
From a single textbook upload, Chelle generates five types of course activities:
Chelle is in early access. We're working closely with educators to refine the course building workflow and expand activity types.
Interested? Sign up at chelle.app to get started.