That is the model everyone gravitate towards. Openai's Fidji too started with the note about how superintelligence is for everyone.
I think it would be back to income based tiers though. You want more assistance, pay $200 per month. Even more, maybe $2000 (for companies). Then, if you dont want to pay, you get contextual ads (which would work here because llms can contextualize far better), and a lower quality of service.
>We believe the benefits of superintelligence should be shared with the world as broadly as possible.
So... ads.