Suprmind lets you run GPT, Claude, Gemini, Grok, and Perplexity all in one...
https://direct-wiki.win/index.php/Suprmind_vs_Perplexity_for_Research_and_Citations:_A_Comparative_Analysis
Suprmind lets you run GPT, Claude, Gemini, Grok, and Perplexity all in one shared conversation, so the AIs can challenge each other and help catch hallucinations