Suprmind is a web-based, paid chat platform that combines GPT, Claude, Gemini,...

https://paxtonssmartperspective.cavandoragh.org/how-do-i-use-perplexity-inside-a-multi-model-chat-for-sourcing

Suprmind is a web-based, paid chat platform that combines GPT, Claude, Gemini, Grok, and Perplexity in one conversation