Suprmind combines Grok with GPT, Claude, Gemini, and Perplexity all in one...

https://www.social-bookmarkings.win/suprmind-offers-a-simple-way-to-use-grok-alongside-gpt-claude-gemini-and

Suprmind combines Grok with GPT, Claude, Gemini, and Perplexity all in one conversation thread, making it easier to compare AI responses side by side. Plans start at $19 for Spark with a 7-day free trial—no credit card needed