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

https://www.red-bookmarks.win/suprmind-ai-connects-gpt-claude-gemini-grok-and-perplexity-in-one

Suprmind lets you query GPT, Claude, Gemini, Grok, and Perplexity simultaneously to compare perspectives. Use built-in Debate and Red Team modes to stress-test your logic, track model disagreements, and generate professional SWOT or strategy briefs