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Claude Opus 4.6

anthropic.com

841–850 of 1001 posts

Re: Claude Opus 4.6

#841
I tried 4.6 this morning and it was efficient at understanding a brownfield repo containing a Hugo static site and a custom Hugo theme. Within minutes, it went from exploring every file in the repo to adding new features as Hugo partials. Of course, I ran out of rate-limit! :)

It is very impressive though.

Re: Claude Opus 4.6

#842

Earlier quoted context omitted.

You're missing the point, it's only a testing excersize for the new model.

No, the point is that you can set up the testing exercise without using an LLM to do a simple find and replace.

Its a test. Like all tests, its more or less synthetic and focused on specific expected behavior. I am pretty far from llms now but this seems like a very good test to see how geniune this behavior actually is (or repeat it 10x with some scramble for going deeper).

Re: Claude Opus 4.6

#843
post #751

Just used Opus 4.6 via GitHub Copilot. It feels very different. Inference seems slow for now. I guess Opus 4.6 has adaptive thinking activated by default.

It dos seem noticeably slower. I may stick with 4.5 which was good enough for me for most tasks.

Re: Claude Opus 4.6

#844

Can we talk about how the performance of Opus 4.5 nosedived this morning during the rollout? It was shocking how bad it was, and after the rollout was done it immediately reverted to it's previous behavior. I get that Anthropic probably has to do hot rollouts, but IMO it would be way better for mission critical workflows to just be locked out of the system instead of get a vastly subpar response back.

"Mission critical workflows" SHOULD NOT be reliant on a LLM model. It's really curious what people are trying to do with these models.

I mean, they could be - if it's self-hosted, has proper failure modes, etc. etc., but all these things have gone out the window in the current cringe gold rush

Re: Claude Opus 4.6

#845

Impressive results, but I keep coming back to a question: are there modes of thinking that fundamentally require something other than what current LLM architectures do? Take critical thinking — genuinely questioning your own assumptions, noticing when a framing is wrong, deciding that the obvious approach to a problem is a dead end. Or creativity — not recombination of known patterns, but the kind of leap where you r…

> are there modes of thinking that fundamentally require something other than what current LLM architectures do?

Possibly. There are likely also modes of thinking that fundamentally require something other than what current humans do.

Better questions are: are there any kinds of human thinking that cannot be expressed in a "predict the next token" language? Is there any kind of human thinking that maps into token prediction pattern such that training a model for it would not be feasible regardless of training data and compute resources?

At the end of the day, the real world value is utility, some of their cognitive handicaps are likely addressable. Think of it like the evolution of flight by natural selection, flight is usefulness to make it worth it adapt the whole body to make flight not just possible but useful and efficient. Sleep falls in this category too imo.

We will likely see similar with AI. To compensate for some of their handicaps, we might adapt our processes or systems so the original problem can be solved automatically by the models.

Re: Claude Opus 4.6

#846

Earlier quoted context omitted.

Sounds pretty human like! Always searching for a shortcut

It sounds like it's lying and making stuff up, something everybody seems to be okay with when using LLMs.

I am not sure why...you want the LLM to solve problems not come up with answers itself. It's allowed to use tools, precisely because it tends to make stuff up. In general, only if you're benchmarking LLMs you care about whether the LLM itself provided the answer or it used a tool. If you ask it to convert the notation of sheet music it might use a tool, and it's probably the right decision.

Re: Claude Opus 4.6

#847
post #482

Just tested the new Opus 4.6 (1M context) on a fun needle-in-a-haystack challenge: finding every spell in all Harry Potter books. All 7 books come to ~1.75M tokens, so they don't quite fit yet. (At this rate of progress, mid-April should do it ) For now you can fit the first 4 books (~733K tokens). Results: Opus 4.6 found 49 out of 50 officially documented spells across those 4 books. The only miss was "Slugulus Eruc…

Surely the corpus Opus 4.6 ingested would include whatever reference you used to check the spells were there. I mean, there are probably dozens of pages on the internet like this: https://www.wizardemporium.com/blog/complete-list-of-harry-p... Why is this impressive? Do you think it's actually ingesting the books and only using those as a reference? Is that how LLMs work at all? It seems more likely it's predicting t…

It's impressive, even if the books and the posts you're talking about were both key parts of the training data.

There are many academic domains where the research portion of a PhD is essentially what the model just did. For example, PhD students in some of the humanities will spend years combing ancient sources for specific combinations of prepositions and objects, only to write a paper showing that the previous scholars were wrong (and that a particular preposition has examples of being used with people rather than places).

This sort of experiment shows that Opus would be good at that. I'm assuming it's trivial for the OP to extend their experiment to determine how many times "wingardium leviosa" was used on an object rather than a person.

(It's worth noting that other models are decent at this, and you would need to find a way to benchmark between them.)

Re: Claude Opus 4.6

#848

I tried 4.6 this morning and it was efficient at understanding a brownfield repo containing a Hugo static site and a custom Hugo theme. Within minutes, it went from exploring every file in the repo to adding new features as Hugo partials. Of course, I ran out of rate-limit! :) It is very impressive though.

This seems like a fairly simple thing I would imagine. I think just sonnet would fair pretty well at this task.

Re: Claude Opus 4.6

#849

Earlier quoted context omitted.

Surely the corpus Opus 4.6 ingested would include whatever reference you used to check the spells were there. I mean, there are probably dozens of pages on the internet like this: https://www.wizardemporium.com/blog/complete-list-of-harry-p... Why is this impressive? Do you think it's actually ingesting the books and only using those as a reference? Is that how LLMs work at all? It seems more likely it's predicting t…

It's impressive, even if the books and the posts you're talking about were both key parts of the training data. There are many academic domains where the research portion of a PhD is essentially what the model just did. For example, PhD students in some of the humanities will spend years combing ancient sources for specific combinations of prepositions and objects, only to write a paper showing that the previous scho…

I don’t think this example proves your point. There’s no indication that the model actually worked this out from the input context, instead of regurgitating it from the training weights. A better test would be to subtly modify the books fed in as input to the model so that there was actually 51 spells, and see if it pulls out the extra spell, or to modify the names of some spells, etc.

In your example, it might be the case that the model simply spits out consensus view, rather than actually finding/constructing this information on his own.

Re: Claude Opus 4.6

#850
post #38

Earlier quoted context omitted.

CC has >6000 open issues, despite their bot auto-culling them after 60 days of inactivity. It was ~5800 when I looked just a few days ago so they seem to be accelerating towards some kind of bug singularity.

Just anecdotally, each release seems to be buggier than the last. To me, their claim that they are vibe coding Claude code isn’t the flex they think it is. I find it harder and harder to trust anthropic for business related use and not just hobby tinkering. Between buggy releases, opaque and often seemingly glitches rate limits and usage limits, and the model quality inconsistency, it’s just not something I’d want to…

Doesn’t this just exacerbate the “black box” conundrum if they just keep piling on more and more features without fully comprehending what’s being implemented
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