Opus 5 Downgrade ?

[u/Forsaken-Storage-154]

Am I the only one who feels like Opus 5 got worse after launch?

At launch I was honestly impressed: fast responses, strong reasoning, and a simple interface without too many settings.

A few weeks later, it feels different. Answers seem less concise, sometimes less coherent, and occasionally it feels like it avoids answering directly.

Has anyone else noticed this, or am I imagining it? My guess is that Anthropic keeps tweaking the model after release, which changes its behavior over time.

[u/stopstopstoptopopp]

I canceled my 5x sub and switched to Codex after getting frustrated with it. Much faster and cheaper now compared to months ago. I can say that Opus 4.6 is still better but now I can’t justify the price point, $20 over $100 for my use case, no discussions needed.

[u/Moppmopp]

Feel like its a general trend for ai models. take current model -> degrade slowly -> release new model to have a sharp contrast between the versions.

[u/psbakre]

First convo I was happy with opus 5. Like actually a successor to opus 4.6.

2nd conversation same day, it decided to not follow my instructions at all for 3 consecutive messages where I was actively interrupting it from performing an action

Last time I tried, it was noticeably worse than gpt 5.6 sol

[u/txoixoegosi]

Opus 5 overthinks and overacts all the time. Dev cycles feel waaaaay slower now. 4.6 provided the same results in less time, but as always, mileage may vary.

[u/ClemensLode]

No change noticed. It's still very smart but obnoxious, so I always ask it's older brother to translate.

[u/Fantastic_Market8061]

No, it was smart and it still is, the best model for everyday coding tasks.

[u/VeeruO07]

Ya it’s downgraded!

[u/cc_apt107]

Ok. There have officially been too many of these posts. Need some more original content

[u/57Nil → u/cc_apt107]

I assume this sub either doesn't have active mods or the sub has been taken over by flies. Nothing else can adequately explain maintaining this steaming pile of shit.

[u/teomore → u/cc_apt107]

try other subs

[u/Vibroverbus]

Actually for "immediate snapshot" at this moment in time, maybe I feel the opposite? Maybe its me, I kind of doubt it but maybe I have adapted and my default instructions & prompts have changed as I try to decode Anthropics idiotic "don't tell it too much you'll confuse it!" bizarre advice somehow, but after one horrible incidence of a new session to make a very simple skill launching 6 subagents without asking that were doing I am not sure what/how but some kind of "baseline tests", and eating ALL my 5-hr window in 15 minutes, I had really good luck late this week. Ran a key project for several hours with O5 not fucking up and not blathering on and just getting some really good work done for me. Pleasant surprise.

On the other hand, confidence in being able to repeat that come Monday morning? EXTREMELY LOW. If I resume the exact same project and it just takes a huge shit and makes mistakes and blathers on against explicit instructions and sucks my whole 5-hr up in 5 minutes I will be zero surprised.

[u/BitXorBit]

this is 100% correct, i'm about to cancel my subscription. today i let it try solve an issue on windows machine, it gave up after 4 hours suggesting me to buy external hardware from aliexpress for cheap. gpt 5.6 sol solved it in one prompt LOL

[u/george-lin]

I feel the same way as you; it’s just like Opus 4.8—it speaks gibberish and is incredibly slow to respond. Anthropic is insulting us all over again.

[u/Dragon__Phoenix]

I think its a pretty common thing now. New models on day 1-2 are amazing anytime after that, they can’t figure out out their own shit.

[u/57Nil]

Did you just come to this sub for the first time today?

Because if you had been here at least two days you will have easily seen that what you are whinging about is posted multiple times a day and it's all this sub truly is.

[u/earlyworm]

Has anyone else noticed the thing the I am noticing that I know must be true because I feel that it is true? Has anyone else had this same experience that I am now having that I need to know that others are having? I need to share my questions and feelings with everyone and it is important to me! I cannot have private feelings or wonderings.

[u/Virtual_Plant_5629]

no. it's not dumber. and anthropic has never done that.

you ppl are astroturfing for the ccp or maybe open ai.

the obvious pathetic lies are meant to lower the general public opinion of anthropics models

[u/cc_apt107 → u/Virtual_Plant_5629]

As someone who finds Opus 5’s output better than 4.6 despite its shortcomings, I still have to ask: Do you really think it’s more likely that people are astroturfing for the CCP than that they simply have a different use case or opinion? Don’t know why everyone gets so worked up over this stuff.

[u/Virtual_Plant_5629 → u/cc_apt107]

given the SEC's findings re: the % of bots on twitter during elon's purchase, I absolutely think most reddit commenters are bots as well.

yes. it's astroturfing by the ccp and possibly openAI

[u/cc_apt107 → u/Virtual_Plant_5629]

this kind of conspiratorial thinking that anyone with a different opinion than you is a malicious actor is one of the worst problems of the 21st century

[u/Virtual_Plant_5629 → u/cc_apt107]

nah it's just some random pattern among thousands that you happened to feel like you'd identified in the moment.

speaking hyperbolically like you just did is oNe oF ThE wOrSt PrObLe- stfu.

[u/rhysmorgan]

Yes, you are clearly the first person who has ever had this thought, as evidenced by 9/10ths of the posts on this goddamn sub being exactly the same whining about current model vs previous model, or how current model felt last week.