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

https://www.nav-bookmarks.win/suprmind-lets-you-chat-with-multiple-ai-models-gpt-claude-gemini-grok-and

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