Sign in for practice chat
Free with an errorboard account — 15 exam-style practice questions a day, from a model fine-tuned on real past papers.
Create a free account
Practice chat
fine-tuned for your course
Open your chats, or start a new one — then ask for a practice question on a topic you name. The difficulty dial below sets how hard the multi-part questions get.
3 · Average exam
Pro unlocks the dial →
That's your 15 free questions for today
The cap resets at midnight UTC. Pro removes it — unlimited practice questions, the 1–5 difficulty dial, and marking on every question you upload.
Upgrade to Pro
Questions are written from scratch by the course-tuned model — expect
around 30 seconds, or up to a minute for the first one after a quiet spell.
Practice chatComing soon
The course-tuned model is in training on real past papers. Practice chat unlocks here automatically the moment it goes live — nothing to install or update.