Suprmind offers a multi-AI chat platform combining GPT, Claude, Gemini, Grok,...

https://wiki-book.win/index.php/Is_There_a_Free_Suprmind_Plan_or_Only_the_7-Day_Trial%3F

Suprmind offers a multi-AI chat platform combining GPT, Claude, Gemini, Grok, and Perplexity models in one place. At $19 a month, Spark is slightly cheaper than ChatGPT Plus at $20