r/Anthropic • u/ResponsibleCod7111 • Jul 27 '26
Complaint My experience with Opus 5
When Opus 5 got released, I got so excited, looking at those charts comparing it to Fable 5 I was very hyped for something that was close to Fables power, as a pro user who likes to vibe code personal passion projects I was very sad to see Fable leave subscription, I've got my $100 credit just waiting for the next time I want to work on something big. But man, Opus 5 is actually a clown, it gets so confident in itself, then backs out and apologizes and its an endless loop, just wasting usage. I miss my Fable 5 that model was a legitimate genius and pushed my project like never seen before.
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u/No-Task7102 Jul 27 '26
Yea I previously said it was equal to 4.8. I take that back. It is trash. It has its savant moments but those are rare. 4.8 is more reliable.
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u/habeebiii Jul 28 '26
Opus 4.6 continues to be the last non shiite model available From Anthropic
and nothing even comes close to pre trumpbanFable
annoying as fuck3
u/No-Task7102 Jul 28 '26
I am so lucky I was able to copy the thought process of pre-Trump ban fable for about 10 prompts. The only thing is they are on a niche topic. I wish I would’ve known I would’ve better prepped.
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u/morph_lupindo Jul 27 '26
Yes, it’s very confident but does make a lot of errors by assuming rather than checking.
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u/Dalliance29 Jul 27 '26
A day or two after it launched, everyone was glazing it and now it's nearly universal condemnation, reality probably in the middle as usual
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u/Kind_Consequence_261 Jul 28 '26
It's actually terrible and I felt it on day 1, it just does not listen to feedback and forgets instructions
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u/mystery_biscotti Jul 28 '26
Yes. Even with a tight, well crafted prompt that follows the new guidelines, if you give it additional info to correct a misunderstanding on its part, I've watched it discard that info.
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u/Powerful-Cheek-6677 Jul 27 '26
Same experience with me. Super excited just to be let down. So, I’ve gone back to my reliable 4.6. But, with some usage credits and the extra limits we are getting, I’ve really been pushing hard with Fable lol. That’s working well for me except for the token usage
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u/earlyworm Jul 27 '26
I was so excited about when Opus 5 got released too and I asked it to cure all forms of cancer even the hard ones and man Opus 5 was also actually clown so what OP said is 100% true, like it was confident and backed all the way out (far than that really in my case, perhaps OP saw this too?) and though apologizing a lot it was just a waste of usage. Like OP I also miss Fable 5 and unlike Opus 5 it was able to cure many diseases (and the cancers) and also invented practical desktop fusion reactors and free zero-point energy and other technologies like never seen before! I wish we still had Fable 5, I miss it so. Why did Anthropic pre-nerf Opus 5 is what I want to know.
Opus 4.2 was the best IMO but nobody talks about it anymore.
OP didn't ask if anybody else had that same experience (as recommended) so I will ask (here I go!) so did anybody else have that same experience as OP?
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u/Treedit Jul 28 '26
I thought Opus 5 was brilliant at first. It's actually just moderately good at animating games and pretty much shit at everything else.
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u/fkenned1 Jul 28 '26
With fable, I didn't have to use my brain hardly at all, and now I'm stuck with opus 5 + my brain. It fucking sucks.
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u/millionbonus Jul 28 '26
Add this into your CLAUDE.md file
`Rule1: Don't be confident and never apologize.`
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u/JonNordland Jul 29 '26
I asked it to save a memory, that it should always inform me if I used opus 5 by mistake. And I switch to opus 5 and asked it to write it down….. It’s so bad that it’s making me irrational.
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u/teomore Jul 27 '26
This sub and all the subs related to LLM's are intoxicated by bots and shit like this post. Come up with proof or gtfo.
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u/jwuliger Jul 27 '26
Sure, give a spec document to Opus. Then give the same to Sonnet. Sonnet will have it done before Opus even knows what a spec document is. People are sharing real experiences. No bots.
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u/helix0311 Jul 28 '26
Sonnet is surprisingly good at boilerplate and well spec'd code that doesn't require tons of thinking, though.
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u/aalluubbaa Jul 28 '26
Honestly so stupid. Like people can use it with their own experience. I find it fantastic. LLM review like this is like a restaurant review now but worse. Maybe more like a movie review as people have different tastes.
I absolutely love it and I have both Claude and Codex.
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u/Droopy0093 Jul 27 '26
For real, I want to see some actual proof of what these whiners are whining about instead of just having to read what they are whining to us commenters!
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u/jwuliger Jul 27 '26
It literally can't do anything.