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

https://www.demilked.com/author/andrew-allen11/

Suprmind.ai lets you query GPT, Claude, Gemini, Grok, and Perplexity simultaneously. It is designed for deep research, using Debate and Red Team modes to track disagreements and pressure-test your assumptions