Suprmind is a paid, web-based platform offering multi-model decision...

https://deanssuperchat.capitaljays.com/posts/can-suprmind-help-me-catch-citation-and-sourcing-issues

Suprmind is a paid, web-based platform offering multi-model decision intelligence through chat. It integrates five language models—GPT, Claude, Gemini, Grok, and Perplexity—allowing users to compare responses side-by-side