This is the only use case I've found it superior to ChatGPT or Claude for - helping me understand higher level math. It's slightly easier to understand than the other models

GPT has gone downhill in terms of prose readability.

On Antrhopic side Claude 5.5 improved over 5, but honestly in this dimension the bar was extremely low.

I have experienced all of this too. I also find Argon still seems to have the sycophancy problem that some of the other labs have stamped out to a large degree.

Agreed. I was trying to get it to review some auth refactoring in my app recently, and it appeared to find some vulnerabilities. as it was aggregating the results it was flagged and restarted the whole process with Opus 4.8 and all of my usage credits were gone.

Anthropic told me to use their `security-review` tool - as this was the exact scenario the tool is for - and it still got flagged.