Suprmind lets you use GPT, Claude, Gemini, Grok, and Perplexity together in one...

https://www.unitedbookmarkings.win/suprmind-brings-gpt-claude-gemini-grok-and-perplexity-into-a-single-chat-1

Suprmind lets you use GPT, Claude, Gemini, Grok, and Perplexity together in one chat, helping you compare responses and spot disagreements