If you don’t think you’ll use much more than 500 requests, but still want access to fast requests, then usage-based pricing is a great option. Will likely end up a lot cheaper for you.
Regarding reasoning, o3-mini now only costs 1/3 of a premium request or 1 cent for usage-based pricing (Update: o3-mini pricing). Cursor also supports R1 and gemini-2.0-flash-thinking-exp.
So plenty of reasoning models to choose from 