I still agree with @anon22939549, it may seem difficult to feel like you’re getting your $20 worth at first, but as you learn how to use it the value it can add increases dramatically.
I know that sounds like a lot of unnecessary work and you can get what you need from bard, and if that’s true then go for it. GPT Plus definitely can add much more value than it costs if you use it well though.
P.S. The advertising material does mention that enterprise is the only plan with unlimited GPT-4 access.
