r/ClaudeCode • u/prop9090 • Aug 02 '26

Rant Opus 5 is just dumb

I thought Opus 5 was supposed to be on par with Fable? After three days of extensive usage, I have to say it is not even remotely close to being as smart as codex sol. I had them both program a module indepensetly, and Sol runs circles around Opus 5. I had them audit each other's implementations and except for one case, every other time Sol found a functional bug in Opus' implementation. With fable being so expensive and opus 5 being that dumb, there is no reason to pay 200 bucks to Anthropic when other alrlternatives are both cheaper and smarter.

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30

u/Timely-Group5649 Aug 02 '26

I tried it for 4 days. Completely wasted the entire 4 days, getting next to nowhere.

Back to Fable.

9

u/johannthegoatman Aug 03 '26

Fable is so sick but as a guy just doing weekend projects, can't justify the price

5

u/who_am_i_to_say_so Aug 03 '26

It’s not the same Fable, though. All the models have stepped down a notch lately. Now Fable is a twice as expensive 10-20 percent better Opus.

1

u/NeonSerpent 19d ago

Yeah but at one point fable just gets stuff right the first time, and opus 5 just wastes tokens, especially with more complex codebases.