Short answer: less than the time it recovers — and you can start at £0. AI training for schools spans a wide range: free introductory site visits, one-off INSET sessions, and ongoing monthly support packages. Exact pricing varies by provider and scope, so get current quotes rather than trusting any article's figures — but the framing that matters is cost against benefit.
The maths that matters
If training helps each teacher recover even two hours a week, a 15-teacher school gets thirty staff hours back weekly — every week, all year. Set any realistic training cost against that and the question stops being "can we afford training?" and becomes "can we afford untrained, inconsistent use?" The expensive option is the one where nothing sticks.
What to buy — and what to avoid paying for
Avoid paying for one-off awareness sessions with no follow-up: enthusiasm without embedding fades by half-term, as we cover in our INSET day guide. Worth paying for: hands-on training around your staff's real tasks, compliance documents done properly, and ongoing support so use actually sticks. AskColin, our sponsor, starts every school with a free, no-obligation site visit and builds from there — their packages page has current pricing.