The goal is to make digital brain universally accessible for everyone. Right now, this service is free of charge.
It's likely that we're going to charge someday. But our goal is to make it as accessible as possible for everyone, to enable the digital brains to harness the power of 7bn+ people on earth.
The potential pricing will optimize towards 1) accessibility for all, 2) long-term / perpetual sustainability of the Stacks, and 3) continued building and evolving the service.
We may introduce some additional upgrades for some plans, but the basic plan will have the goal to provide sufficient features for everyone.