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

https://suprmind.ai/hub/chatgpt/best-chatgpt-alternative/

Suprmind offers a smart multi-AI chat platform combining GPT, Claude, Gemini, Grok, and Perplexity models in one place. For $19 a month, Spark is a budget-friendly alternative to ChatGPT Plus at $20