Suprmind is a solid alternative to ChatHub, starting at $19 per month for the...

https://rowansnewwords.tearosediner.net/does-suprmind-work-for-architecture-decisions-and-complex-analysis

Suprmind is a solid alternative to ChatHub, starting at $19 per month for the Spark plan. It offers six conversation modes, a Decision Validation Engine to double-check responses, and a Red Team feature for spotting issues