For tools, I use repo prompt + grok website. Personally think claude code is overrated, and hand building the context by selecting the files is far better for complicated tasks
I found o1-pro unbelievably good for coding, but when o3-pro was released, I saw the response length in ChatGPT was gimped severely compared to o1-pro, so didn't find it all that useful - it couldn't output long enough responses. I actually cancelled my ChatGPT subscription as it seemed like such a downgrade, though I'll probably try using again via OpenAI's API at some point, so long as the response length isn't capped. I'm tempted to try out Grok 4 Heavy.
Only a hair better than grok 3 preview.
Hard pass.