AI Answer Checker

One place for checking answers on 4AB. Pick the tool that matches what you have in hand: an answer sheet, a homework sheet, or an answer key.

AI Answer Checker

Upload a question paper and an answer sheet, with the key and marking scheme, and get the sheet marked question by question.

AI Homework Checker

Check one homework sheet and see each question marked.

Answer Key Cross Checker

Compare an answer key someone prepared with the answers printed in the question bank. Free; not AI.

AI Question Checker

Review of typed questions against the original. Staff-only today; not open to the public yet.

Questions

Which one should I open?
Use the Answer Checker for an exam or board-style paper, the Homework Checker for a homework sheet, and the Cross Checker if you only need to compare an answer key.

Is the AI the final judge?
No. AI reads and suggests marks; the printed answer in the bank is the reference, and you can ask for a person to review.

AI reads and suggests; a person stays in charge. Prices, where there are any, are shown before you pay. See the other tools in the AI Answer Checker group or report a problem at Help.