Suprmind offers a multi-AI chat platform with access to GPT, Claude, Gemini,...

https://rapid-wiki.win/index.php/How_Do_@Mentions_Work_in_Suprmind_Like_@gpt%3F

Suprmind offers a multi-AI chat platform with access to GPT, Claude, Gemini, Grok, and Perplexity models—all in one place. Plans start at $19 with Spark, a dollar less than ChatGPT Plus. Try it free for 7 days with no credit card required