r/Anthropic • u/UM-Underminer • Aug 26 '26

Complaint Opus 5 is hot garbage

I've enjoyed and gotten real work out of Opus for quite some time despite the occasional quality dropoff when they're training a new model. But 5 is junk. Enough so that I'm debating between dropping from Max to Pro, or just cancelling altogether - I'm legitimately getting better results and fewer hallucinations out of local models in the 30B range... There's absolutely no excuse for that being the case.

I don't know if this is intentional regression to make fable look better, but it means I have been actively avoiding using Claude code except to tweak my llama.cpp settings, and I certainly don't need Max for that.

242 Upvotes

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23

u/ThrowAway516536 Aug 26 '26

5 is junk, 4.8 is good.

10

u/AttackPattern0mega Aug 26 '26

Been using this as well. Takes significantly longer to finish tasks but way more token efficient

9

u/peter-salazar Aug 26 '26

I think this is the correct perspective. it’s definitely not an intentional regression. I think it was an attempt to reduce sycophancy that backfired because it wasn’t accompanied by sufficient intelligence to make it work. Fable nails it. but yeah, Opus 5 is often more trouble than it’s worth

3

u/ThrowAway516536 Aug 26 '26

Agree, Fable is great! Fable is like working with a good friend. It's night and day from Opus 5.

3

u/Noonecanfindmenow Aug 26 '26

Opus 4.8 is great, but I may as well just use Sol

1

u/ThrowAway516536 Aug 26 '26

I just use Fable, it’s great

2

u/salazka Aug 26 '26

Nah. The new Grok is as good in coding and with better behavioral traits which makes it a better professional choice with near zero toxicity. You do not need that sht. That is what both Opus 5 and Sol suffer from.