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NoClaude, ChatGPT · 17 Apr 2026

5.4 takes about 50% longer, almost without fail

michaelcampbell on Hacker News

5.4 takes about 50% longer

In the thread “Claude Opus 4.7”, replying to this comment

Got in the way: Slower performance compared to previous version.

… It's looking into other previously written MD docs, and checking against 3-4 multi-thousand file Ruby codebase(s). 5.4 takes about 50% longer, almost without fail. I'm using 'medium' effort on both.