The models "3.5 Sonnet" and "3 Opus" are in my experience nearly at the same level. Once in my last 250 prompts did I run into a problem that 3 Opus was able to

The models "3.5 Sonnet" and "3 Opus" are in my experience nearly at the same level. Once in my last 250 prompts did I run into a problem that 3 Opus was able to solve, but 3.5 Sonnet could not. (I forget the details but it was a combination of logic and trivia knowledge. It is highly likely 3.5 Sonnet would have done a better job with better prompting and richer context, but this was a problem where also I lacked the context and understanding to prompt well.) Given that 3.5 Sonnet is cheaper and faster than 3 Opus, I default to 3.5 Sonnet so I don't know what the number for the reverse is. How many problems do 3.5 Sonnet get which 3 Opus does not? ¯\_(ツ)_/¯ My best guess would be that it's something in the same kind of range.