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Re:Two things LLM coding agents are still bad at by grey-area on Thursday October 09, 2025 @03:17AM (#45524541)
Or just not bother. It sounds pretty useless if it flunks on basic tasks like this.

Perhaps you’ve been sold a lie?

Re:Two things LLM coding agents are still bad at by ivape on Thursday October 09, 2025 @03:22AM (#45524574)
Well, you see it hallucinates on long precise strings, but if we ignore that, and focus on what it’s powerful at, we can do something powerful. In this case, by the time it gets to outputting the url, it already determined the correct intent or next action (print out a url). You use this intent to do a tool call to generate a url. Small aside, it’s ability to figure what and why is pure magic, for those still peddling the glorified autocomplete narrative.

You have to be able to see what this thing can actually do, as opposed to what it can’t.

Re:Two things LLM coding agents are still bad at by sebtron on Thursday October 09, 2025 @03:55AM (#45524810)
> Well, you see it hallucinates on long precise strings

But all code is "long precise strings".

Re:Two things LLM coding agents are still bad at by ogogmad on Thursday October 09, 2025 @06:47AM (#45525879)
He obviously means random unstructured strings, which code is usually not.
Re:Two things LLM coding agents are still bad at by grey-area on Thursday October 09, 2025 @12:08PM (#45529660)
I can’t even tell if you’re being sarcastic about a terrible tool or are hyping up LLMs as intelligent assistants and telling me we’re all holding it wrong.
Re:Two things LLM coding agents are still bad at by IanCal on Thursday October 09, 2025 @08:47AM (#45526906)
They're moderately unreliable text copying machines if you need exact copying of long arbitrary strings. If that's what you want, don't use LLMs. I don't think they were ever really sold as that, and we have better tools for that.

On the other hand, I've had them easily build useful code, answer questions and debug issues complex enough to escape good engineers for at least several hours.

Depends what you want. They're also bad (for computers) at complex arithmetic off the bat, but then again we have calculators.

Re:Two things LLM coding agents are still bad at by goalieca on Thursday October 09, 2025 @09:44AM (#45527622)
> I don't think they were ever really sold as that, and we have better tools for that.

We have OpenAI calling gpt5 as having PhD level of intelligence and others like Anthropoc saying it will write all our code within months. Some are claiming it’s already writing 70%.

I say they are being sold as a magical do everything tool.

Re:Two things LLM coding agents are still bad at by IanCal on Thursday October 09, 2025 @11:23AM (#45528980)
Intelligence isn't the same as "can exactly replicate text". I'm hopefully smarter than a calculator but it's more reliable at maths than me.

Also there's a huge gulf between "some people claim it can do X" and "it's useful". Altman promising something new doesn't decrease the usefulness of a model.

Re:Two things LLM coding agents are still bad at by mbesto on Thursday October 09, 2025 @11:33AM (#45529152)
What you are describing is "dead reasoning zones".[0]

    "This isn't how humans work. Einstein never saw ARC grids, but he'd solve them instantly. Not because of prior knowledge, but because humans have consistent reasoning that transfers across domains. A logical economist becomes a logical programmer when they learn to code. They don't suddenly forget how to be consistent or deduce.

    But LLMs have "dead reasoning zones" — areas in their weights where logic doesn't work. Humans have dead knowledge zones (things we don't know), but not dead reasoning zones. Asking questions outside the training distribution is almost like an adversarial attack on the model."

https://jeremyberman.substack.com/p/how-i-got-the-highest-sc...
Re:Two things LLM coding agents are still bad at by hitarpetar on Thursday October 09, 2025 @11:39AM (#45529239)
saddest goalpost ever
Re:Two things LLM coding agents are still bad at by buildbot on Thursday October 09, 2025 @10:57AM (#45528615)
Would you hire a PhD to copy URLs by hand? Would them having PhD make it less likely they’d make a mistake than an high school student doing the same?
Re:Two things LLM coding agents are still bad at by hitarpetar on Thursday October 09, 2025 @11:54AM (#45529444)
I would not hire anyone for a role that requires computer use who does not know how to use copy/paste
Re:Two things LLM coding agents are still bad at by goalieca on Thursday October 09, 2025 @11:25AM (#45529011)
Grad students and even post docs often do a lot of this manual labour for data entry and formatting. Been there, done that.
Re:Two things LLM coding agents are still bad at by IanCal on Thursday October 09, 2025 @11:53AM (#45529426)
Manual data entry has lots of errors. All good workflows around this base themselves on this fact.
Re:Two things LLM coding agents are still bad at by parineum on Thursday October 09, 2025 @11:25AM (#45529015)
A high school student would use copy/paste and the urls would be perfect duplicates..
Re:Two things LLM coding agents are still bad at by IanCal on Thursday October 09, 2025 @11:52AM (#45529407)
> A high school student would use copy/paste and the urls would be perfect duplicates..

Did the LLM have this?

Re:Two things LLM coding agents are still bad at by baq on Thursday October 09, 2025 @03:54PM (#45532285)
LLMs aren’t high school students, they’re blobs of numbers which happen to speak English if you poke them right. Use the tool when it’s good at what it does.
Re:Two things LLM coding agents are still bad at by parineum on Thursday October 09, 2025 @10:03PM (#45534811)
And the people who are causing this confusion are the CEOs of the companies saying that the newest model is a PHD in your pocket.
Re:Two things LLM coding agents are still bad at by laterium on Thursday October 09, 2025 @02:32PM (#45531353)
They are lying, because their salary depends on them lying about it. Why does it even matter what they're saying? Why don't we listen to scientists, researchers, practicioners and the real users of the technology and stop repeating what the CEOs are saying?

The things they're saying are technically correct, the best kind of correct. The models beat human PhDs on certain benchmarks of knowledge and reasoning. They may write 70% of the easiest code in some specific scenario. It doesn't matter. They're useful tools that can make you slightly more productive. That's it.

When you see on tv that 9 out of 10 dentists recommend a toothpaste what do you do? Do you claim that brushing your teeth is a useless hype that's being pushed by big-tooth because they're exaggerating or misrepresenting what that means?

Re:Two things LLM coding agents are still bad at by culll_kuprey on Thursday October 09, 2025 @03:00PM (#45531680)
> When you see on tv that 9 out of 10 dentists recommend a toothpaste what do you do? Do you claim that brushing your teeth is a useless hype that's being pushed by big-tooth because they're exaggerating or misrepresenting what that means?

Only after schizophrenic dentists go around telling people that brushing their teeth is going to lead to a post-scarcity Star Trek world.

Re:Two things LLM coding agents are still bad at by laterium on Thursday October 09, 2025 @03:14PM (#45531852)
It's a new technology which lends itself well to outrageous claims and marketing, but the analogy stands. The CEOs don't get to define the narrative or stand as strawman targets for anti-AI folks to dunk on, sorry. Elon has been repeating "self driving next year" for a decade+ at this point, that doesn't make what Waymo did unimpressive. This level of cynicism is unwarranted is what I'm saying.
Re:Two things LLM coding agents are still bad at by IanCal on Thursday October 09, 2025 @11:52PM (#45535232)
You shouldn’t - that’s the point of the comparison. If some insane dentists started saying this you should not stop brushing your teeth!
Re:Two things LLM coding agents are still bad at by grey-area on Thursday October 09, 2025 @02:54PM (#45531619)
So questioning the utility of LLMs for knowledge work is now akin to a conspiracy theory?
Re:Two things LLM coding agents are still bad at by laterium on Thursday October 09, 2025 @03:23PM (#45531974)
Not what I said at all. Question it all what you want. But disproving outrageous CEO claims doesn't get you there. Whether LLMs are AGI/ASI that will replace everyone is seperate from whether they are useful today as tools. Attacking the first claim doesn't mean much for the second claim, which is the more interesting one.
Re:Two things LLM coding agents are still bad at by grey-area on Saturday October 11, 2025 @12:43PM (#45550558)
I'm questioning the basic utility. They are text generation machines. This makes them unsuitable for any work that requires accuracy or understanding, which is the vast majority of knowledge work.
Re:Two things LLM coding agents are still bad at by seanw265 on Thursday October 09, 2025 @10:40AM (#45528361)
I suspect you haven't tried a modern mid-to-large-LLM & Agent pair for writing code. They're quite capable, even if not suited for all tasks.
Re:Two things LLM coding agents are still bad at by baq on Thursday October 09, 2025 @03:51PM (#45532249)
Read about the jagged frontier. IanCal is right: this is a perfect example of using the tool wrong; you’ve focused on a very narrow use case which is surprisingly hard for the matmuls to not mess up and extrapolate, but extrapolation is incorrect here because the capability frontier is fractal and not continuous.
Re:Two things LLM coding agents are still bad at by grey-area on Friday October 10, 2025 @03:21AM (#45536176)
It’s not surprisingly hard at all, when you consider they have no understanding of the tasks they do nor of the subject material. It’s just a good example of the types of tasks (anything requiring reliability or correct results) that they are fundamentally unsuited to.

Sadly it seems the best use-case for LLMs at this point is bamboozling humans.

Re:Two things LLM coding agents are still bad at by baq on Friday October 10, 2025 @06:33AM (#45537264)
When you take a step back it's surprising that these tools can be actually useful at all in nontrivial tasks, but being surprised doesn't matter in the grand scheme of things. Bamboozling rarely enough for harnesses to keep them in line and ability to inference-time self-correct when bamboozling is detected either by the model itself or by the harness is very useful at least in my work. It's a question of using the tool correctly and understanding its limitations, which is hard if you aren't willing to explore the boundaries and commit to doing it every month basically.