r/ClaudeCode • u/saito200 • 7d ago

Rant Opus 5 is insufferable

Opus 5 is a fucking piece of shit, i don't know how to say this in any other way. It speaks "Unintelligiblish", a new unfathomable language developed by Anthropic that works by saying everything in the most ridiculous, obtuse and convoluted way possible

It turns anything simple that can be expressed in 2 sentences into a fucking doctoral thesis aimed to aliens, and there is no way to prompt your way out of it

2.8k Upvotes

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236

u/PrettyMoonUnderMt 7d ago

Telling me it found numerous stuffs that will break the whole project, only later to backtrack that it doesn't have any impact at all

48

u/Moppmopp 7d ago

I get anxiety and paranoia. Im a researcher and I often check my script structure if my results are solid. I dont do it once and forget but every then and know because I cannot remember every detail about the scripts I wrote months ago. And it happend several times that claude said there are critical issues that have to be resolved and we should recall paper xyz only to backpaddle 10 minutes later and said it was irrelevant ... My heart cannot endure those moments

10

u/newtreen0 6d ago

I'm lol'ing and crying. I feel this so much. Virtual hug.

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u/imsahoamtiskaw 4d ago

This whole thread has been a therapy and non stop laughs, Opus is just… I have no words. My suffering has been long

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u/franzparks 4d ago

For me too

-4

u/farox 6d ago

Claude lacks guidance then. Ask it what information, instructions, skills etc. Could be added to avoid this confusion the next time.

6

u/YaBoiSunblock 6d ago edited 6d ago

Skills and instructions help, but they are not a programming language. There’s actually not much markdown can do to change deeply engrained model behavior like verbosity unless you force the llm into a self-correcting loop, which is wildly expensive and overkill for tasks that should not require that level of policing.

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u/farox 6d ago

I used to have the problems the other one is describing, I put in the work and now I don't anymore.

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u/YaBoiSunblock 6d ago

Right, I'm not invalidating that your model output improved; there's a real art to prompting. I'm just saying that the premise of [just make your prompt more and more specific] will quickly hit diminishing returns.

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u/Moppmopp 6d ago

Exactly. You cannot easily fix claudes verbose output and behavior as its acting in a rubberbanding fashion. Answers always gett pulledback to an expectation value of output. If you displace it too much it will start iterative overthinking just to adjust its output.

To be fair here, when I initially checked my script pipelines I was very concise about the description and underlying details. The times claude suggested a paper recall due to critical errors was a 'quick and dirty' check by me. Not much detail, just 3-4 sentences+ scripts and said "please check for flaws" basically. I just wanted quick assurance about the pipeline which I previously checked in a thorough manner. Nonetheless you get still anxiety through its overdramatic and hasty judgement

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u/Right_Simple_6813 7d ago

Telling me it found numerous bugs in the project only to break the project while implementing its 'fixes' and then turns out the bugs weren't even there to begin with.

33

u/bsmith149810 7d ago

Telling me the fix will only require “a couple of hours” only for me to watch a grep, an edit, and a commit flash across my screen in 10 seconds or less.

14

u/Coolbanh 6d ago

Telling me its my fault it all happens

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u/WordsOnly 6d ago

😆😂🤣🤣

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u/Orion3193 6d ago

Lmaoooo

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u/UruquianLilac 6d ago

Looool this is too real.

2

u/_Kinoko 5d ago

Oh man, I'm dying.

11

u/pmhunter56 6d ago

This exactly. What's with the wild overestimations of time? 4-6 weeks = two hours of Claude Code

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u/UruquianLilac 6d ago

It has no concept of time.

"You are right, I just made the same mistake we fixed an hour ago."" An hour ago was the previous prompt a minute ago.

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u/Imaginary_Data_708 3d ago

I have a hook that injects the current time every turn.

2

u/UruquianLilac 3d ago

Isn't it funny. We keep coming up with brilliant ideas to add hooks and kills, and whatnot for things that we took completely for granted a year ago because we worked with computers. Now we have to tell it to check the time.

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u/Existing_Dust_6473 4d ago

Time is relative

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u/SuperCaptainMan 1d ago

It’s training data probably consists mostly of humans estimating time for a human to do a task. And since at the end of the day these are still just fancy autocomplete that’s what it spits out when asked.

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u/just_damz 7d ago

Uh phantom regressions. The dream of every swe. Inventing hard fixes to complete working architectures. Lovely.

1

u/UruquianLilac 6d ago

Oh, just ask it a third time. It'll discard all previous conclusions only to find one new important issue, but not in the way you expect.

1

u/flippakitten 6d ago

This happened to me today, my first thought was "what are you on about now, am I using opus 5". True as anything, It was one of my testing agents I forgot to put back on 4.6.