Suprmind $4 Spark vs $45 Pro: What really changes and what actually matters

https://kylerssplendidthoughtss.inkharbory.com/posts/the-economics-of-subscription-stacking-versus-orchestration

Short answer: the $4 Spark tier is built for light, experimental use; the $45 Pro tier is aimed at heavy personal users and small teams who need higher throughput, longer context, and stronger guarantees