Free ChatGPT Omni

Free ChatGPT Omni provides a free, convenient, user-friendly online chatting UI for AI conversations by model GPT-4o. Why did I build it? I found "gpt-4o" model is more efficient and cheaper than "gpt4", as well as it own different and cutting-edge capability. But there is no where let me experience it with some questions for free, which I believe there are so many people just wanna try it. So I build the Free ChatGPT Omni.