They all let you do that now, including Claude Code itself. You can choose between pay per token and subscription.
Which means that a sensible way to go about those things is to start with a $20 subscription to get access to the best models, and then look at your extra per-token expenses and whether they justify that $200 monthly.
Which means that a sensible way to go about those things is to start with a $20 subscription to get access to the best models, and then look at your extra per-token expenses and whether they justify that $200 monthly.