ChatGPT 4o vs. ChatGPT 4

With ChatGPT 4o being released to all users regardless on whether they are paying for ChatGPT, other than the benefit of a higher usage rate, what other benefits are there for ChatGPT Plus? Is ChatGPT 4 better than ChatGPT 4o, or is 4o better and faster? ChatGPT advertises ChatGPT 4o as their "Newest and most advanced model".