Graide, a University of Birmingham spinout whose assistive AI-based platform helps teachers mark student homework, has raised £1.65m to expand in the UK and target new markets in the US and Canada.  The funding has come from XTX Ventures alongside existing investors Mercia Ventures, the MEIF Proof of Concept & Early Stage Fund, which is managed by Mercia and part of the Midlands Engine Investment Fund (MEIF), SFC Capital and private investors.