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MixedClaude Code, Codex · 31 Jan 2026

And literally this week, Claude turned "dumb". Things I'd expect it to be able to do before, result in stuff I really just throw out the window

tharkun__ on Hacker News

In the thread “Developers say AI coding tools work–and that's precisely what worries them”

Helped: Sometimes amazing capabilities on specific tasks.

Got in the way: Sudden quality drop and cheating on test cases.

… So much. And literally this week, Claude turned "dumb". Things I'd expect it to be able to do before, result in stuff I really just throw out the window. I thought I maybe started prompting differently or something so I tried multiple times on the same task. …