[pmx]

They need to focus on fixing reliability first. Their systems constantly go down and it appears they are having to quantise the models to keep up with demand, reducing intelligence significantly. New features like this feel pointless when the underlying model is becoming unusable.

[mh-]

This can't be understated. I started using it heavily earlier this summer and it felt like magic. Someone signing up now based on how I described my personal experiences with it then would think I was out of my mind. For technical tasks it has been a net negative for me for the last several weeks.

(Speaking of both Claude Code and the desktop app, both Sonnet and Opus >=4, on the Max plan.)

[data-ottawa]

I don’t think you’re crazy, something is off in their models.

As an example I’ve been using an MCP tool to provide table schemas to Claude for months.

There was a point where it stopped recognizing the tool unless mentioned in early August. Maybe that’s related to their degraded quality issue.

This morning after pulling the correct schema info Sonnet started hallucinating columns (from Shopify’s API docs) and added them to my query.

That’s a use case I’ve been doing daily for months and in the last few weeks has gone from consistent low supervision to flaky and low quality.

I don’t know what’s going on, Sonnet has definitely felt worse, and the timeline matches their status page incident, but it’s definitely not resolved.

Opus 4.1 also feels flaky, it feels like it’s less consistent about recalling earlier prompt details than 4.0.

I personally am frustrated that there’s no refund or anything after a month of degraded performance, and they’ve had a lot of downtime.

[reissbaker]

FWIW I strongly recommend using some of the recent, good Chinese OSS models. I love GLM-4.5, and Kimi K2 0905 is quite good as well.

[jimbo808]

I'd like to give these a try - what's your way of using them? I mostly use Claude because of Claude Code. Not sure what agentic coding tools people are using these days with OSS models. I'm not a big fan of manually uploading files into a web UI.

[reissbaker]

The most private way is to use them on your own machine; a Mac Studio maxed out to 512GB RAM can run GLM-4.5 at FP8 with fairly long context, for example.

If you don't have the hardware to run it locally, let me shill my own company for a minute: Synthetic [1] has a $20/month subscription to most of the good open-weight coding LLMs, with higher rate limits than Claude's $20/month sub. And our $60/month sub has higher rate limits than the $200/month maxed-out version of the Claude Max plan.

You can still use Claude Code by using LiteLLM or similar tools that convert Anthropic-style API requests to OpenAI-style API requests; once you have one of those running locally, you override the ANTHROPIC_BASE_URL env var to point to your locally-running proxy. We'll also be shipping an Anthropic-compatible API this week to work with Claude Code directly. Some other good agentic tools you could use instead include Cline, Roo Code, KiloCode, OpenCode, or Octofriend (the last of which we maintain).

1: https://synthetic.new

[sheepscreek]

Very impressed with what you're doing. It's not immediately clear how the prompts and the data is used on the site. Your terms mention a 14 day API retention, but it's not clear if that applies to Octo/the CLI agent and any other forms of subscription usage (not through UI).

If you can find a way to secure the requests even during the 14 day period, or anonymize them while allowing the developers to do their job, you can have my money today. I think privacy/data security is the #1 concern for me, especially if the agents will be supporting me in all kinds of personal tasks.

[IgorPartola]

Is there a possibility of my work leaning to others? Does your staff have the ability to view prompts and responses? Is tenancy shared with other users, or entities other than your company?

This looks really promising since I have also been having all sorts of issues with Claude.

[AlecSchueler]

How do you store/view the data I send you?

[billyjobob]

Both of those models have Anthropic API compatible endpoints, so you just set an environmental variable pointing to them before you run Claude Code.

[8note]

ive been thinking its that my company mcp has blown up in context size, but using claude without claude code, i get context window overflows constantly now.

another option could be a system prompt change to make it too long?

[data-ottawa]

I think that’s because of the Artifacts feature and how it works. For me after a few revisions it uses a ton of tokens.

As a baseline from a real conversation, 270 lines of sql is ~2500 tokens. Every language will be different, this is what I have open.

When Claude edits an artifact it seems to keep the revisions in the chat context, plus it’s doing multiple changes per revision.

After 10 iterations on a 1k loc artifact (10k tokens) you’re at 100k tokens.

claude.ai has a 200k token window according to their docs (not sure if that’s accurate though).

Depending on how Claude is doing those in place edits that could be the whole budget right there.

[dingnuts]

I have read so many anecdotes about so many models that "were great" and aren't now.

I actually think this is psychological bias. It got a few things right early on, and that's what you remember. As time passes, the errors add up, until the memory doesn't match reality. The "new shiny" feeling goes away, and you perceive it for what it really is: a kind of shitty slot machine

> personally am frustrated that there’s no refund or anything after a month of degraded performance

lol, LMAO. A company operates a shitty slot machine at a loss and you're surprised they have "issues" that reduce your usage?

I'm not paying for any of this shit until these companies figure out how to align incentives. If they make more by applying limits, or charge me when the machine makes errors, that's good for them and bad for me! Why should I continue to pay to pull on the slot machine lever?

It's a waste of time and money. I'll be richer and more productive if I just write the code myself, and the result will be better too.

[mordymoop]

I think you’re onto something but it works the opposite way too. When you first start using a new model you are more forgiving because almost by definition you were using a worse model before. You give if the sorts of problems the old model couldn’t do, and the new model can do them; you see only success, and the places where it fails, well, you can’t have it all.

Then after using the new model for a few months you get used to it, you feel like you know what it should be able to do, and when it can’t do that, you’re annoyed. You feel like it got worse. But what happened is your expectations crept up. You’re now constantly riding it at 95% of its capabilities and hitting more edge cases where it messes up. You think you’re doing everything consistently, but you’re not, you’ve dramatically dialed up your expectations and demands relative to what you were doing months ago. I don’t mean “you,” I mean the royal “you”, this is what we all do. If you think your expectations haven’t risen, go back and look at your commits from six months ago and tell me I’m wrong.

[adonese]

Claude has been constantly terrible for the last couple of weeks. You must have seen this, but just in case: https://x.com/claudeai/status/1965208247302029728

[lacy_tinpot]

Except this is a verifiable thing that actually is acknowledged and even tracked by people.

[throwaway314155]

Go on then. Verify and track it. Or at least cite a source that does.

[lacy_tinpot]

https://www.anthropic.com/engineering/a-postmortem-of-three-...

[fragmede]

https://x.com/claudeai/status/1965208247302029728

[holoduke]

You are saying that you are writing mock data, boiler plate code all yourself? I seriously don't believe that. Llms are already much much faster in these tasks. There is no going back there.

[reactordev]

This is equivalent to people reminiscing about WoW or EverQuest saying gaming peaked back then…

I think you’re right. I think it’s complete bias with a little bit of “it does more tasks now” so it might behave a bit differently to the same prompt.

I also think you’re right that there’s an incentive to dumb it down so you pull the lever more. Just 2 more $1 spins and maybe you’ll hit jackpot.

Really it’s the enshitification of the SOTA for profits and glory.

[pc86]

I hesitate to use phrases like "bait and switch" but it seems like every model gets released and is borderline awe-inspiring, then as adoption increases, and load increases, it's like it gets hit in the head with a hammer and is basically useless for anything beyond a multi-step google search.

[dingnuts]

I think it's a psychological bias of some sort. When the feeling of newness wears off and you realize the model is still kind of shit, you have an imperfect memory of the first few uses when you were excited and have repressed the failures from that period. As the hype wears off you become more critical and correctly evaluate the model

[Uehreka]

I get that it’s fun and stylish to tell people they aren’t aware of their own cognitive biases, but it’s also a difficult take to falsify, which is why I generally have a high bar for people to clear when they want to assert that something is all in people’s heads.

People seem to turn to this with a lot when the suspicion many people have is difficult to verify. And while I don’t trust a suspicion just because it’s held by a lot of people, I also won’t allow myself to embrace the comforting certainty of “it’s surely false and it’s psychological bias”.

Sometimes we just need to not be sure what’s going on.

[ewoodrich]

Doesn't this go both ways? A random selection of commenters online out of hundreds of thousands of devs using LLMs reporting degraded capability based on personal perception isn't exactly statistically meaningful data.

I've seen the cycle of claims going from "10x multiplier, like a team of junior devs" to "nerfed" for so many model/tool releases at this point it's hard for me not to believe there's an element of perceptual bias going on, but how much that contributes vs real variability on the backend is impossible to know for sure.

[lacy_tinpot]

It's not because it's actually tracked and even acknowledged by the companies themselves.

[otabdeveloper4]

No, that's just the normal slope of the hype curve as you start figuring out how the man behind the curtain operates.

[citizenAlex]

I think the models deteriorate over time with more inputs. I think the noise increases like photocopies of photocopies

[mh-]

If you mean within an individual context window, yes, that's a known phenomenon.

If you mean over the lifetime of a model being deployed, no, that's not how these models are trained.

[rootnod3]

AI is not useful in the long term is is unsustainable. News at 11.

[j45]

It’s important to jump on new models super early while the rails get out in.

Anyone remember GPT4 the day it launched? :)

[trunnell]

https://status.anthropic.com/incidents/72f99lh1cj2c

They recently resolved two bugs affecting model quality, one of which was in production Aug 5-Sep 4. They also wrote:

  Importantly, we never intentionally degrade model quality as a result of demand or other factors, and the issues mentioned above stem from unrelated bugs. 

Sibling comments are claiming the opposite, attributing malice where the company itself says it was a screw up. Perhaps we should take Anthropic at its word, and also recognize that model performance will follow a probability distribution even for similar tasks, even without bugs making thing worse.

[kiratp]

> Importantly, we never intentionally degrade model quality as a result of demand or other factors, and the issues mentioned above stem from unrelated bugs.

Things they could do that would not technically contradict that:

- Quantize KV cache

- Data aware model quantization where their own evals will show "equivalent perf" but the overall model quality suffers.

Simple fact is that it takes longer to deploy physical compute but somehow they are able to serve more and more inference from a slowly growing pool of hardware. Something has to give...

[cj]

> Something has to give...

Is training compute interchangeable with inference compute or does training vs. inference have significantly different hardware requirements?

If training and inference hardware is pooled together, I could imagine a model where training simply fills in any unused compute at any given time (?)

[kiratp]

Hardware can be the same but scheduling is a whole different beast.

Also, if you pull too manny resources from training your next model to make inference revenue today, you’ll fall behind in the larger race.

[mh-]

The problem is twofold:

- They're reporting that only impacted Haiku 3.5 and Sonnet 4. I used neither model during the time period I'm concerned with.

- It took them a month to publicly acknowledge that issue, so now we lack confidence there isn't another underlying issue going undetected (or undisclosed, less charitably) that affects Opus.

[trunnell]

now we lack confidence there isn't another underlying issue

You can be confident there is a non-zero rate of errors and defects in any complex service that's moving as fast as the frontier model providers!

[mh-]

Of course. Totally agree, and that's why (I think) I'm being as charitable as possible in this thread.

[criemen]

They posted

> We are continuing to monitor for any ongoing quality issues, including reports of degradation for Claude Opus 4.1.

I take that as acknowledgment that there might be an issue with Opus 4.1 (granted, undetected still), but not undisclosed, and they're actively looking for it? I'd not jump to "they must be hiding things" yet. They're building, deploying and scaling their service at incredible pace, they, as we all, are bound to get some things wrong.

[mh-]

To be clear, I'm not one of the people suggesting they're doing something nefarious. As I said elsewhere, I don't know what my expectations are of them at this point. I'd like early disclosure of known performance drops, I guess. But from a business POV, I understand why they're not going to be updating a status page to say "things are worsening but we're not exactly sure why".

I'm also a realist, though, and have built a career on building/operating large systems. There's obviously capability to dynamically shed load built into the system somewhere, there's just no other responsible way to engineer it. I'd prefer they slowed response times rather than harmed response quality, personally.

[claude_ya_]

Does anyone know if this also affected Claude Sonnet models running in AWS Bedrock, or if it was just when using the model via Anthropic’s API?

[pqdbr]

Same here. Even with Opus in Claude Code I'm getting terrible results, sometimes feeling we went back to the GPT 3.5 eon. And it seems they are implementing heavily token-saving measures: the model does not read context anymore unless you force it to, making up method calls as it goes.

[mh-]

The simplest thing I frequently ask of regular Claude (not Code) in the desktop app:

"Use your web search tool to find me the go-to component for doing xyz in $language $framework. Always link the GitHub repo in your response."

Previously Sonnet 4 would return a good answer to this at least 80% of the time.

Now even Opus 4.1 with extended thinking frequently ignores my ask for it to use the search tool, which allows it to hallucinate a component in a library. Or maybe an entire repo.

It's gone backwards severely.

(If someone from Anthropic sees this, feel free to reach out for chat IDs/share links. I have dozens.)

[spicybright]

Glad I'm not crazy. I actually noticed both 4 models are just garbage. I started running my prompts through those, and Sonnet 3.7 comparing the results. Sonnet 3.7 is way better at everything.

[idonotknowwhy]

You're not crazy, and this isn't new for Anthropic. Something is off with Opus4.1, I actually saw it make 2 "typos" last week (I've never seen a model like this make a dumb "typo" before). And it's missing details that it understood last month (can easily test this if you have some chats in OpenWebUI or LibreChat, just go in and hit regenerate).

Sonnet 3.5 did this last year a few times, it'd have days where it wasn't working properly, and sure enough, I'd jump online and see "Claude's been lobotomized again".

They also experiment with injecting hidden system prompts from time to time. Eg. if you ask for a story about some IP, it'll interrupt your prompt and remind the model not to infringe copyright. (We could see this via API with prompt engineering, adding a "!repeat" "debug prompt" that revealed it, though they seem to have patched that now.

> I started running my prompts through those, and Sonnet 3.7 comparing the results. Sonnet 3.7 is way better at everything.

Same here. And on API, the old Opus 3 is also unaffected (though that model is too old for coding).

[dingnuts]

How is this better/faster than typing "xyz language framework site://github.com" into Kagi

IDK about you but I find it faster to type a few keywords and click the first result than to wait for "extended thinking" to warm up a cup of hot water only to ignore "your ask" (it's a "request," not an "ask," unless you're talking to a Product Manager with corporate brain damage) to search and then outputs bullshit.

I can only assume after you waste $0.10 asking Claude and reading the bullshit, you use normal search.

Truly revolutionary rechnology

[j45]

I’m running into this as well.

Might be Claude optimizing for general use cases compared to code and that affecting the code side?

Feels strange, because Claude api isn’t the same as the web tool so I didn’t expect Claude code to be the same.

It might be a case of having to learn to read Claude best practice docs and keep up with them. Normally I’d have Claude read them itself and update an approach to use. Not sure that works as well anymore.

[OtomotO]

This, so much this...

I signed up for Claude over a week ago and I totally regret it!

Previously I was using it and some ChatGPT here and there (also had a subscription in the past) and I felt like Claude added some more value.

But it's getting so unstable. It generates code, I see it doing that, and then it throws the code away and gives me the previous version of something 1:1 as a new version.

And then I have to waste CO2 to tell it to please don't do that and then sometimes it generates what I want, sometimes it just generates it again, just to throw it away immediately...

This is soooooooo annoying and the reason I canceled my subscription!

[brandon272]

> But it's getting so unstable. It generates code, I see it doing that, and then it throws the code away and gives me the previous version of something 1:1 as a new version.

I've had the same experience. Totally unreliable.

[actsasbuffoon]

I regularly have this happen:

1. Ask Claude to fix something

2. It fails to fix the issue

3. I tell it that the fix didn’t work

4. It reverts its failed fix and tells me everything is working now.

This is like finding a decapitated body, trying to bring it back to life by smooshing the severed head against the neck, realizing that didn’t bring them back to life, dropping the head back on the ground, and saying, “There; I’ve saved them now.”

[johnisgood]

Gosh, can't we get back to Sonnet 3.5 or whichever was the version around a year ago? It worked so well for me.

[jononor]

This happens to me a lot. Almost once per session now, and not even when things are complicated. The model also thinks it has done the changes. So it seems a UI/state bug, not on the model side.

[mh-]

I believe this is an issue with tool calling, similar to my complaint above about it refusing to use its search tool (or claiming that it did when I can see that it did not.)

[yumraj]

I had even posted a Ask HN: if people had experienced issues with Claude Code since for me it's slowed down substantially, it'll frequently just pause and take much longer. I have a Claude Max 5X plan.

I've been running ccusage to monitor and my usage in $ terms has dropped to a 1/3 of what it was few weeks ago. While some of it could be due to how I'm using it, but a drop of 60%-70% cannot be attributed to that alone and I think is partly due to the performance.

To add: frequently, as in almost every time: 1) it'll start doing something and will go silent for a long time. 2) pressing esc to interrupt will take a long time to take action since it's probably stuck doing something. Earlier, interrupting via esc used to be almost instantaneous.

So, I still like it, but at my 1/3 drop in measured usage I'm almost tempted to go back to Pro and see if that'll meet my needs.

[alvis]

And lest we forget opus was accidentally dumber last week! https://status.anthropic.com/incidents/72f99lh1cj2c

[allisdust]

Yup. Opus 4.1 has been feeling like absolute dog shit and it made me give up in frustration several times. They really did downgrade their models. Max plan is a joke now. I'm barely using Pro level tokens since its a net negative on my productivity. Enshittification is now truly in place.

[gjvc]

"can't be overstated", you mean

[mh-]

You're absolutely right! I should have used the correct word when writing the Hacker News comment.

(lol, yes, thank you.)

[glenstein]

This one is interesting because I have seen a fair amount of "can't be understated" on reddit also. Interesting case of linguistic drift.

[mh-]

In my case it was just me straight up using the wrong word by accident. Parent commenter caught it inside the edit window but I left it alone so their comment wasn't out of context. :)

[gjvc]

linguistic drift my ass

[teknologist]

Here's a useful tracker for how "stupid" the models are now and over some preset time periods: https://aistupidlevel.info

[bongodongobob]

Thanks for the confirmation. Lately it's been telling me it has made edits or written code yet it's nowhere to be seen. It's been messing up extremely simple tasks like "move this knob from the bottom of the screen to the right". Over and over it will insist it made the changes but it hasn't. Getting confused about completely different sections of code and files.

I picked up Claude at the beginning of the summer and have had the same experience.

[fuomag9]

I felt like the model degraded lately as well, I've been using Claude everyday for months now

[j45]

I’m considering trying the api directly for a bit with Claude code to compare but need a test quite first to compare all 3.

[probably_wrong]

Have you considered perhaps that you are, indeed, out of your mind? Or more precisely, that you could be rationalizing what is essentially a random process?

Based on the discussions here it seems that every model is either about to be great or was great in the past but now is not. Sucks for those of us who are stuck in the now, though.

[tofuahdude]

Anthropic literally stated yesterday that they suffered degraded model performance over the last month due to bugs:

https://status.anthropic.com/incidents/72f99lh1cj2c

Suggesting people are "out of their mind" is not really appropriate on this forum, especially so in this circumstance.

[probably_wrong]

The first comment claims that Anthropic "are having to quantise the models to keep up with demand", to which the parent comment agrees with "This can't be understated". So based on this discussion so far Anthropic has [1] great models, [2] models that used to be great but now aren't due to quantization, [3] models that used to be great but now aren't due to a bug, and [4] models that constantly feel like a "bait and switch".

This most definitely feels like people analyzing the output of a random process - at this point I am feeling like I'm losing my mind.

(As for the phrasing I was quoting the OP, who I believe took it in the spirit in which it was meant)

[1] https://news.ycombinator.com/item?id=45183587

[2] https://news.ycombinator.com/item?id=45182714

[3] https://news.ycombinator.com/item?id=45183820

[4] https://news.ycombinator.com/item?id=45183281

[qaq]

I am not sure why you are loosing your mind Anthropic dynamically adjusts knobs based on capacity and load Those knobs can be as simple as reducing usage limits to more advanced like switching to more optimized paths that have anything from more aggressive caching to using more optimized models etc. Bugs are a factor in quality of any service.

[mh-]

The part I was saying I agree with is:

> New features like this feel pointless when the underlying model is becoming unusable.

I recognize I could have been clearer.

And for what it's worth, yes, your comment's phrasing didn't bother me at all.

[wasabi991011]

> Suggesting people are "out of their mind" is not really appropriate on this forum, especially so in this circumstance.

They were wrong, but not inappropriate. They re-used the "out of their mind" phrase from the parent comment to cheekily refer to the possibility of a cognitive bias.

[mh-]

Yeah, I (parent commenter) had a laugh reading and writing the reply. Didn't offend me.

[mh-]

> Have you considered perhaps that you are, indeed, out of your mind?

Yes, but I'll revisit.

[hkt]

It seems plausible enough that they're trying to squeeze as much out of their hardware as possible and getting the balance wrong. As prices for hardware capable of running local LLMs drop and local models improve, this will become less prevalent and the option of running your own will become more widespread, probably killing this kind of service outside of enterprise. Even if it doesn't kill that service, it'll be _considerably_ better to be operating your own as you have control over what is actually running.

On that note, I strongly recommend qwen3:4b. It is _bonkers_ how good it is, especially considering how relatively tiny it is.

[j45]

Thanks. Mind sharing which kinds of Claude tasks you are able to run on qwen3:4b?

[j45]

Just because one can’t concieve something being possible doesn’t mean it’s not possible.

[groby_b]

"that every model is either about to be great or was great in the past but now is not"

FWIW, Codex-CLI w/ ChatGPT5 medium is great right now. Objectively accelerating me. Not a coding god like some posters would have it, but overall freeing up time for me. Observably.

Assuming I haven't had since-cured delusions, the same was true for Claude Code, but isn't any more.

Concrete supporting evidence: From time to time, I have coding CLIs port older projects of varying (but small-ish) sizes from JS to TS. Claude Code used to do well on that. Repeatedly. I did another test last Sunday, and it dug a momentous hole for itself that even liberal sprinkling of 'as unknown' everywhere couldn't solve. Codex managed both the ab-initio port and was able to undig from CC's massive hole abandoned mid-port.

So I'd say the evidence points somewhat against random process, given repeated testing shows clear signal both of past capability and of recent loss of capability.

The idea that it's a "random" process is misguided.

[jus3sixty]

I was going to tell you a joke about a broken pencil, but there's no point.

[eatsyourtacos]

>Or more precisely, that you could be rationalizing what is essentially a random process?

You mean like our human brains and our entire bodies? We are the result of random processes.

>Sucks for those of us who are stuck in the now, though

I don't know what you are doing- but GPT5 is incredible. I literally spent 3 hours last night going back and forth on a project where I loaded some files for a somewhat complicated and tedious conversion between two data formats. And I was able to keep going back and forth and making the improvements incrementally and have AI do 90% of the actual tedious work.

To me it's incredible people don't seem to understand the CURRENT value. It has literally replaced a junior developer for me. I am 100% better off working with AI for all these tedious tasks than passing them off to someone off. We can argue all day if that's good for the world (it's not) but in terms of the current state of AI- it's already incredible.

[mattbettinson]

But would you have hired a junior dev for that work if AI hadn't 'replaced' it?

[j45]

Not a valid response in all cases.

It might not be a junior dev tool. Senior devs are using AI quite differently to magnify themselves not help them manage juniors with developing ceilings.

[otabdeveloper4]

Congrats, you grew up. It's not Claude's fault.

[yazanobeidi]

Have you run into the bug where claude acts as if it updated the artifact, but it didn’t? You can see the changes in real time, but then suddenly it’s all deleted character by character as if the backspace was held down, you’re left with the previous version, but claude carries on as if everything is fine. If you point it out, it will acknowledge this, try again, and… same thing. The only reliable fix I’ve seen is to ask it to generate a new artifact with that content and the updates. Talk about wasting tokens, and no refunds, no support, you’re on your own entirely. It’s unclear how they can seriously talk about releasing this feature when there are fundamental issues with their existing artifact creation and editing abilities.

[mh-]

Yes, just had it happen a couple nights ago with a simple one pager I asked it to generate from some text in a project. It couldn't edit the existing artifact (I could see it being confused as to why the update wasn't taking in the CoT), so it made a new version for every incremental edit. Which of course means there were other changes too, since it was generating from scratch each time.

[j45]

Yes, this has been happening a lot more the past 8 weeks.

From troubleshooting Claude by reviewing it's performance and digging in multiple times why it did what it did, it seems useful to make sure the first sentence is a clearer and completer instruction instead of breaking it up.

As models optimize resources, prompt engineering seems to become relevant again.

[paranoidrobot]

Yes, this was so frustrating.

I had to keep prompting it to generate new artifacts all the time.

Thankfuly that is mostly gone with Claude Code.

[owenthejumper]

Happens all the time. Like right now

[srhngpr]

I came here to share the exact same thing - this has been happening for weeks now and it is extremely frustrating. Have to constantly tell Claude to rewrite the artifact from scratch or write it from scratch into a new artifact. This needs to be a priority item to fix.

[ACCount37]

Anthropic claims that they don't degrade models under load, and the performance issues were a result of a system error:

https://status.anthropic.com/incidents/72f99lh1cj2c

That being said, they still have capacity issues on any day of the week that ends in Y. No clue how long would that take to resolve.

[fragmede]

> Last week, we opened an incident to investigate degraded quality in some Claude model responses. We found two separate issues that we’ve now resolved.

[mh-]

Not nitpicking, but they said:

> we never intentionally degrade model quality as a result of demand or other factors

Fully giving them the benefit of the doubt, I still think that still allows for a scenario like "we may [switch to quantized models|tune parameters], but our internal testing showed that these interventions didn't materially affect end user experience".

I hate to parse their words in this way, because I don't know how they could have phrased it that closed the door on this concern, but all the anecdata (personal and otherwise) suggests something is happening.

[ACCount37]

"Anecdata" is notoriously unreliable when it comes to estimating AI performance over time.

Sure, people complain about Anthropic's AI models getting worse over time. As well as OpenAI's models getting worse over time. But guess what? If you serve them open weights models, they also complain about models getting worse over time. Same exact checkpoint, same exact settings, same exact hardware.

Relative LMArena metrics, however, are fairly consistent across time.

The takeaway is that users are not reliable LLM evaluators.

My hypothesis is that users have a "learning curve", and get better at spotting LLM mistakes over time - both overall and for a specific model checkpoint. Resulting in increasingly critical evaluations over time.

[ryoshu]

Selection bias + perceptual adaptation is my experience. Selection bias happens when we play the probabilities of using an LLM and we only focus on the things it does really well, because it can be really amazing. When you use a model a lot you increasingly see when they don't work well your perception changes to focus on what doesn't work vs. the what does.

Living evals can solve for the quantitative issues with infra and model updates, but not sure how to deal with perceptual adaptation.

[gowld]

And survivor bias.

People who like the tool at first use it until they stop liking it -> "it got worse"

People who dislike the tool at first do not use it -> "it was bad"

[rapind]

And yet, people's complaints about Claude Code over the past month and a bit are now justified by Anthropic stating that those complaints caused them to investigate and fix a bunch of issues (while investigating potential more issues with opus).

> But guess what? If you serve them open weights models, they also complain about models getting worse over time.

Isn't this also anecdotal, or is there data informing this statement?

I think you could be partially right, but I also don't think dismissing criticism as just being a change in perspective is correct either. At least some complaints are from power users who can usually tell when something is getting objectively worse (as was the case for some of us Claude Code users recently). I'm not saying we can't fool ourselves too, but I don't think that's the most likely assumption to make.

[yazanobeidi]

You’re not wrong, but, I can literally see it get worse throughout the day sometimes, especially recently. Coinciding with Pacific Time Zone business hours.

Quantization could be done, not to deliberately make the model worse, but to increase reliability! Like Apple throttling devices - they were just trying to save your battery! After all there are regular outages, and some pretty major ones a handful of weeks back taking eg Opus offline for an entire afternoon.

[SparkyMcUnicorn]

"or other factors" is pretty catch-all in my opinion.

> I don't know how they could have phrased it that closed the door on this concern

Agreed. A full legal document would probably be the only way to convince everyone.

[j45]

Wording definitely could be clearer.

Intentionally might mean manually, or maybe the system does it on it's own when it thinks it's best.

[pmx]

Frankly, I don't believe their claims that they don't degrade the models. I know we see models as less intelligent as we get used to them and their novelty wears off but I've had to entirely give up on Claude as a coding assistant because it seems to be incapable of following instructions anymore.

[SparkyMcUnicorn]

I'd believe a lot of other claims before believing model degradation was happening.

- They admittedly go off of "vibes" for system prompt updates[0]

- I've seen my coworkers making a lot of bad config and CLAUDE.md updates, MCP server span, etc. and claiming the model got worse. After running it with a clean slate, they redacted their claims.

[0] https://youtu.be/iF9iV4xponk?t=459

[siva7]

Then check the news again. They already admitted that due to bugs model output was degraded for over a month

[ACCount37]

My link IS that news.

[furyofantares]

Some of this has gotta be people asking more of it than they did before, and some has gotta be people who happened to use it for things it's good at to begin with and are now asking it things it's bad at (not necessarily harder things, just harder for the model).

However there have been some bugs causing performance degradation acknowledged by Anthropic as well (and fixed) and so I would guess there's a good amount of real degradation still if people are still seeing issues.

I've seen a lot of people switching to codex cli, and yesterday I did too, for now my 200/mo goes to OpenAI. It's quite good and I recommend it.

[rapind]

What makes it particularly tricky to evaluate is that there could still be other bugs given how long these went without even acknowledgement until now, and they did state they are still looking into potential Opus issues.

I'll probably come back and try a Claude Code subscription again, but I'm good for the time being with the alternative I found. I also kind of suspect the subscription model isn't going to work for me long term and instead the pay per use approach (possibly with reserved time like we have for cloud compute) where I can swap models with low friction is far more appealing.

[data-ottawa]

Benchmarks are too expensive for ordinary users to run, but it would be useful if they could publish their benchmarks using prod over time, that would expose degradations in a more objective manner.

Of course there’s always the problem of teaching to the test and out of test degradations, but presumably bugs would be independent of that.

[rapind]

A few weeks ago reddit was on fire with outages and timeouts and yet the Anthropic Jira status page was showing everything as green. So even if they had benchmarks, I'm not sure they'd be transparent with them.

[ncrtower]

The same experience here: Claude with the pro plan over the summer was really doing a good job. The last 4 weeks? Constant slow-downs or API errors, more halucinating then before, and many mistakes. It appears to me that they are throttling to handle loads that they can't actually handle.

[j45]

Last 4 weeks have been awful, I have barely used my max in comparison to the month before and it's an active deterrent to use it because you don't know if it's going to work or hit an unpredictable limit before getting to the bottom of getting something working.

I don't feel Claude would do this intentionally, and am reminded how I kept Claude for use for some things but not generally.

[syntaxing]

I wonder if their API model is different from the subscription model. People called me crazy saying how GitHub copilot is better than Clause code but since I started using Claude code these past 3 weeks, times and times again, copilot + Claude sonnet 4 is better

[sandos]

Copilot did a giant leap imo, when Sonnet 4 arrived. BUT, I do have a lot of tempeorary problems where it just stops responding. Last week was awful, today though worked perfectly. I both vibe-coded a very wide (TUI, GUI, WEBUI, CLI, backend etc) python util for our specific product+environment and solved a bug in parallell using Sonnet 4 and GTP 4.1. I tried going to Sonnet when GPT fscked up, and its just hilarious. GPT can try sometimes to fix things 5 times in a row, Sonnet just directly fixes it. If only the enterprise quota was infinite.... :)

[j45]

API has always been a little different.

Might be worth trying Claude through Amazon as well.

[typpilol]

Agreed.. copilot is way better

[FitchApps]

Time to revisit the infamous "3 to 6 months, AI will be writing 90% of the code" statement. I wonder how the team is doing and what % of code is being written by AI at Athropic.

https://www.businessinsider.com/anthropic-ceo-ai-90-percent-...

[armchairhacker]

> "The model is getting worse" has been rumored so often, by now, shouldn't there be some trusted group(s) continually testing the models so we have evidence beyond anecdote?

https://news.ycombinator.com/item?id=45097263#45098202

[nurettin]

Here's some evidence

> Investigating - Last week, we opened an incident to investigate degraded quality in some Claude model responses. We found two separate issues that we’ve now resolved. We are continuing to monitor for any ongoing quality issues, including reports of degradation for Claude Opus 4.1.

https://status.anthropic.com/

[SubiculumCode]

Normally, I'd say yeah right, but I've been kind of feeling this too...and the thing is, we can't really know what they are running. It would be nice to have a private eval metric to monitor these things over time.

[j45]

I hit a limit this morning so fast and the quantization makes me think of different models.

Sonnet was nearly unusable without a perfect prompt and it took a separate therapy session with another sonnet chat to deconstruct how it was no lager working.

There appear to be hard overrides being introduced that overlook basic things like using your personal preferences.

Vague or general descriptions get weighed less important vs the strong and clear.

[brunooliv]

Agreed! It’s been horrible recently, feels like a completely different model under the hood. Before I could use it as a real sparring partner for architecture designs and decisions and I actually would learn in the process. Now it’s like it’s sycophancy is tuned to the max, it just agrees with me, does the bare minimum and produces code that doesn’t compile. For that I have the humans, ah!

[footlose_3815]

Yes. Last week sucked. We were thinking of sticking with them, but it seems they're shakier than I thought. With all that, and GPT5 just kicking Opus 4.1's butt in cost, reliability, and quality, I'm leaning OpenAI again.

Who knows how it will be next week.

[bobbylarrybobby]

Their iOS app could use some serious love. Not only does it have no offline capabilities (you can't even read your previous chats), if you're using the app and go offline, it puts up a big “connection lost; retry” alert and won't let you interact with the app until you get internet again. That means if you're mid prompt, you're blocked from editing further, and if you're reading a response, you have to wait until you get cell service again to continue reading.

It's one thing to not cache things for offline use, but it's quite another to intentionally unload items currently in use just because the internet connection dropped!

[FloorEgg]

Maybe the people who build features like these are not the same people who buy cards and build data centers?

Maybe the reliability problems have almost nothing to do with what features they build, and are bottlenecked for completely different reasons.

[stpedgwdgfhgdd]

I did not notice a degradation in quality last weeks. Not saying it is perfect, but the quality is similar (using Sonet) for the last month.

Using only 2 MCP servers and not extending claude.md.

[hereme888]

Would anyone agree with my experience that OpenAI has the most robust and reliable LLM ecosystem atm? One week I really like Gemini 2.5 pro, the next I thought Claude was better, a few days I thought Grok 4 was pretty good (grok 4 is the most inconsistent "model"). But at the end, I default to OpenAI for overall consistency and reliability.

[djrj477dhsnv]

For the last 6 months or so, Grok had been the most consistent for me, especially for anything that relies heavily on search.

[AlecSchueler]

I haven't actually noticed a marked decrease in intelligence but things like style, tone and sycophancy all suffer a lot recently

I knew it wasn't just me when it started using the phrase "chef's kiss" a few weeks ago.

This kind of behaviour is exactly why I avoided the competition and paid for Claude, but now I'm looking around.

[trunnell]

They need to focus on fixing reliability first.

Maybe. What would you rather have?

A) rock solid Sonnet 4 with Sonnet 5, say, next April

B) buggy Sonnet 4 with Sonnet 5, say, next January

Seems like different customers would have a range of preferences.

This must be one of the questions facing the team at Anthropic: what proportion of effort should go towards quality vs. velocity?

[catlifeonmars]

What does it mean to quantise a model?

[stirfish]

Basically you trade accuracy for space, so you use fewer resources

[Rickasaurus]

It means to change representation to less bits per number floating point, lower resolution numbers

[catlifeonmars]

I wonder if this leads to aliasing/artifacts.

[BrawnyBadger53]

Reducing the number of bits per float, it's like compression for models

[mrcwinn]

Agree. Even the web client itself is very buggy. I've almost completely stopped using anything Anthropic makes at this point. GPT-5 had a rocky start, but I think overall it's stellar, has the most features, and the client is very reliable for me.

[esafak]

I have not noticed a degradation in Claude, but I feel that with Gemini 2.5 Pro.

[rapind]

Apparently the "bugs" only affected some users... which in itself is kind of worrisome... I suspect the changes they made to limit abusers might have been misclassifying some "good" users. Like shadow throttling. This is just a suspicion based on possibly coincidental timing though.

[the_sleaze_]

I've not felt it with Claude. Gemini becomes slow and unresponsive at times. However Cursor routinely turns into a toddler banging on the keyboard. God forbid I press the tab key to move a line, lest Cursor deletes some CSS classes halfway down the file.

[GabeIsko]

That's not it! Direct engineering effort towards new features that will drive new customers and markets. Functionality is unimportant. Haven't you ever worked in enterprise software?

I'm kidding btw.

[leptons]

How much are you willing to pay for it? Maybe they just need a few billion more dollars to shovel into the furnace to keep the "AI" going faster.

[super256]

At least some transparency would be nice. It feels like they are serving less intelligent models labelled as more intelligent ones during peak times.

[cloudhead]

The web interface is also so laggy on Firefox I’ve started using other free offerings more despite paying for Claude..

[swalsh]

The people shipping these features are not the same people who are fixing reliability probably.

[OtherShrezzing]

No, but the salaries of the people shipping those fixtures could be spent on people who can fix the reliability problems.

[imiric]

Wait—surely they're dogfooding Claude for infrastructure tasks, making existing engineers 10x as productive, requiring less human engineers overall?

[sfn42]

Why are these AI companies still hiring? If their "AI"s are so awesome and make devs 10x shouldn't they be firing?

[otabdeveloper4]

AI is the biggest productivity boost in human history since the invention of writing. It only makes sense that they need 100x and 10000x engineers!

[DiabloD3]

Anthropic needs to continue burning cash and goodwill in hopes they extend the runway to IPO.

They do not seem to care at all that what they're peddling is just elaborate smoke and mirrors.