Exclusive: Female-founded AI startup raises £1M to grade exams. Here’s the pitch deck

Sainaptic has raised £1M in a pre-money seed round, with Cornerstone VC and Ufi Ventures leading and Elm plus Brighteye also taking part. The company is female-founded, and this round puts fresh money behind a very specific promise: using AI to grade exams.

That pitch hinges on accuracy. Sainaptic says its grading AI has almost perfect accuracy, with a deviation of less than 1% when assigning grades. In other words, it is trying to sell schools and exam providers on a machine that can stay very close to the mark, not one that merely sounds clever in a demo.

The funding itself is a useful signal. Cornerstone VC and Ufi Ventures led the round, which suggests investors were willing to back a narrow education use case rather than another broad, all-purpose AI platform with a shiny slide deck and vague plans. Elm and Brighteye joined them.

This is still just the first step, of course. The source gives a funding number and a performance claim, but not the full rollout plan, pricing, or how widely the system is already being used. What it does show is a startup trying to turn one of AI's messiest promises — automated grading — into something measurable.

And that is the right way to do it. Education AI doesn't need louder hype; it needs fewer excuses and better numbers. A model that can stay within 1% is at least speaking the language this sector understands.