The first 100 paying Pro members join the Founders Circle at £9.99 a month or £99.99 a year, including VAT. That rate is locked in for the life of the same subscription while it stays active. Standard pricing after the offer is £14.99 a month or £149.99 a year.
If you cancel or your subscription ends, rejoining later uses the then-current price. See the Pricing page for the current allowances on each plan.
Your AI allowance is shown at the bottom of the decision page and in Settings.