Suprmind.ai lets you query GPT, Claude, Gemini, Grok, and Perplexity...

https://wiki-book.win/index.php/Suprmind.ai_vs_TypingMind:_Choosing_the_Right_Orchestrator_for_High-Stakes_Research

Suprmind.ai lets you query GPT, Claude, Gemini, Grok, and Perplexity simultaneously. Use Debate and Red Team modes to stress-test your logic and track model disagreements