Ask HN: Opus 5.5 suddenly dumb as rocks?
Is it just me, or has Opus suddenly turned dumb as rocks with 0 attention span over the last half day or so? Noticeably worse output across multiple agents on very different projects.
Is it just me, or has Opus suddenly turned dumb as rocks with 0 attention span over the last half day or so? Noticeably worse output across multiple agents on very different projects.
Discussion Highlights (9 comments)
nikolay
Agreed. Yet, it munches tokens like there's not tomorrow. I don't get anything done with Claude in the past 2-3 weeks - just eating up its weekly quota within a day.
jpbryan
I started noticing at the end of last week. My colleagues started noticing on different days this week.
74948494i4
New model incoming
jaapz
Fable 5.5 incoming?
vldszn
nerfed, fable 5.5 coming soon
jrockway
There was an article on HN a month or so about benchmarking Opus 5.5 every day and recording / publishing the results. I recall this being a github repo, but my searches turned this up instead: https://www.bridgebench.ai/nerf-bench/claude-opus-5-5 So it seems like ... it is not getting dumber. I find myself using Fable a lot more, though. Opus 5.5 was never as fun as Fable, but it's pretty good.
itopaloglu83
I think something has changed, maybe about two weeks ago, because there’s this fixation from the model where if you ever need to make a correction, it simply becomes disinterested with your instructions.
fractorial
First time?
Bender
Is it just me, or has Opus suddenly turned dumb as rocks What I've seen is that if I let Opus 5.5 run for too many turns (not sure how to quantify that) it starts exhibiting signs of human dementia. It will forget it told me to run something and will then accuse me of misconfiguring something that it literally gave me a script to run that configures something. It also forgets the instructions in my project and has to go back and read them and apologizes for forgetting the instructions. Between this increasing context rot and the excessive shock collars applied to defensive security coding it's rare that I can even use Opus 5.5. For the past few weeks I have had to use Opus 4.8 and even that now has a sub-set of the shock collars applied [cyber] which forces me to start a new session. This has led me to researching the Abliterated 70B/120B (uncensored) models and required hardware. So dumb as rocks? I am not seeing that, but the context rot is getting worse for me personally. I don't know if it makes a difference, I am on the pro 20x plan. Maybe people on enterprise plans do not see this which I assume is most of the people here using Claude.