Subscriptions I've tested myself
An affordable subscription from the makers of OpenCode. Limits by windows: 5-hour, weekly, and monthly — whichever you exhaust first is the one that limits you.
Sliding limits: 5-hour and weekly, both continuously refill. Limits scale in packages.
Transparent billing for server time: save tokens — get more requests. Tested both Pro and Max.
Tried the $20 subscription. Had 400 requests per 5 hours with no weekly limits. Didn't get to try Code Max. The only constraint was the number of concurrent threads.
There's also pay-as-you-go token billing. Sometimes credits are given for testing new models. My subscription was once cancelled without explanation a few days before renewal — but the money was fully refunded.
* Bonuses for new users may apply via the links. Limits, pricing, and terms change periodically — check the services' sites for current details.