TL;DR
AI subscriptions do not primarily differ by model quality anymore. They differ by reset window design.
Claude uses a five-hour reset after you hit the included limit. Perplexity restores each Pro Search credit exactly 24 hours after you use it. Devin mixes daily and weekly quota. Copilot and Cursor are closer to monthly credit accounting.
These windows shape user behavior. Burst windows reward sprints. Rolling restore windows reward daily pacing. Weekly quotas reward batching. Monthly credit buckets reward explicit budget management.
The useful comparison is not unlimited versus limited. It is whether the reset logic matches the actual rhythm of the work.
