To fill this out, I find o1-pro (and -preview when it was live) to be pretty good at filling in blindspots/spotting holistic bugs. I use Claude for day to day, and when Claude is spinning, o1 often can point out why. It's too slow for AI coding, and I agree that at default its responses aren't always satisfying.

That said, I think its code style is arguably better, more concise and has better patterns -- Claude needs a fair amount of prompting and oversight to not put out semi-shitty code in terms of structure and architecture.

In my mind: going from Slowest to Fastest, and Best Holistically to Worst, the list is:

1. o1-pro 2. Claude 3.5 3. Gemini 2 Flash

Flash is so fast, that it's tempting to use more, but it really needs to be kept to specific work on strong codebases without complex interactions.