I think it is great that people point out LLM generated articles here on HN. Sadly, it feels like I am slowly loosing my skill to identify LLM speak. Maybe I am getting worn out of all LLM content... So, please, list the indicators and telltale signs from the specific article or blog post (like others have done here already). At least I would appreciate it a lot.
> It is not age verification. It is identity verification.
> You can change a password. You cannot change your face.
> This is not a popularity contest, and refusal is not a vote you are trying to win
These were a couple sentences that were immediate flags to me. There've been countless articles written on this (I can dig them up if you want), but IMO there are pretty clear semantic rhythms you start to notice.
It is not foo, it is bar. You can zip, you cannot zap.
Tons of people write that way.
I agree that these are signs of AI, but they're also the way that people write. I use the "it's not X it's Y" framing a lot of the time because it's a quick way to get my point across. It's probably the sign of a bad writer because I can't come up with a different/better way to say the same thing, but I'm not AI.
I could tell it was AI, but it was interesting nonetheless. FWIW, I don't think AI enablement is inherently bad; this can be a game changer for an individual with an interesting thought yet difficulty expressing themselves in written word. (Obviously, it's also created a real problem with the ability to create near infinite well-written content, especially in the case of propaganda.)
I do agree with you that the quotes cited out are literary constructs used by humans, and there's a risk we get trigger-happy in calling out AI-slop. Still, those are just the most obvious tells — there were absolutely other, less notable mannerisms that confirmed it for me. If you interact enough with an LLM, you can become quite good at detecting their output through subtle subconscious cues that are hard to put to words.
I do wonder where some of the tropes came from. Claude tends to say "____ is doing a lot of work in this sentence", yet I don't recognize that as a common construction for humans overall or even a specific community (e.g. journalists). Perhaps I'm just unfamiliar with some vernaculars found in training data. Yet sometimes, it legitimately feels like they've actually developed a lingo of their own — an emergent property.
I find it all truly fascinating (along with other feelings…), and I never expected computers to be able to "understand" language anywhere near the degree we see today. Will it soon plateau, requiring another breakthrough? Or is there plenty of juice left to squeeze?
If anyone uses a couple of these red flags to dismiss the entire article and the underlying idea, that says a lot more about them than the author.
Although these are indicators, real people also use these sometimes.
These are normal patterns in US English. The zeal to accuse limits the scope of possible responses. There are all sorts of things humans do when writing that LLMs mimic — em-dashes for instance — that are entirely legitimate ways to communicate but get shouted down for… reasons?
Surely you’re aware that LLMs were trained on the ways humans write specifically to mimic them? Yes? So what’s the gripe? Someone cranked out a “thought piece” with no effort or actual thinking on their own?
But thats the promise of AI.
So are you advocating doing away with AI tools and research? Maybe we start asking “should we” not “can we”? Now that is a position I might get behind.
But really how the hell am I supposed to write at all when nearly ANYTHING I write could be interpreted as AI-generated and then shouted down in some quasi-ad-hominem attack on me while not engaging with any points made?
It is the utter end of written discussion.
My brain skims the entire blog before reading it and if I see two short sentences with dots and negation or even one single em dash, I ctrl+w out
Straight quotes were my first clue, followed by “it’s not this it’s that” and subheads.
Straight quotes? I thought an LLMs thing was always using the curly ones?
I think it will become pretty simple. Does the author say somewhere on their site that they don't use AI for writing? If yes, then great. Otherwise, it's very likely LLM-generated — particularly if the author spends a lot of time writing positively about AI. (And what if they lie? They will be discovered eventually, at which point they can be blacklisted.)
The em-dashes
> Sadly, it feels like I am slowly loosing my skill to identify LLM speak.
Just read a few fiction books written in 2026 in Amazon Kindle Unlimited. Your brain will be trained to recognize AI-Slop Speak in No Time.
Specific article aside, you may be interested in:
https://en.wikipedia.org/wiki/Wikipedia:AISIGNS
https://github.com/blader/humanizer/blob/main/SKILL.md#conte...
The multiple uses of "it's worth X" made me question the authorship, for one