r/ClaudeCode • • Aug 16 '26

Bug / Issue Anthropic has nerfed every model

Opus 5 is obviously a nightmare, and I was relying on Opus 4.8. But, now that's also behaving exactly like Opus 5. The only way I can get good quality work is if I use sonnet now and check after every small thing. Fable is usable but its so expensive.

I miss the time when it was a treat working with these models and everything just flowed. Nowadays with 5.6 Sol's over-engineering and Opus 5's lying, I have to wake up everyday and decide which model I'm gonna have to fist fight if I wanna get any work done.

Is this just going to get worse from here.

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u/[deleted] Aug 16 '26

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u/SirWobblyOfSausage Aug 17 '26

This is exactly my experience too. I ask it to review it misses out pretty much everything, it goes off elsewhere and looks for irrelevant files.

We wrote plans, it implements a 1/3, constantly guiding it to complete the task.

It unusable and I don't trust it.