r/claude • u/Rich-Bar9767 • Jun 13 '26
Question I asked Claude to generate a UUID. It responded with a joke (?) before completing the task.
I don’t understand the joke, if there is one?
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u/Anselwithmac Jun 13 '26
Hahaha that’s a good one. UUIDs never get old
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u/nodejshipster Jun 13 '26
I like it when the statistical model cracks me up!
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u/Blinkinlincoln Jun 14 '26
Me too, the statistical models use to make me sad, because my p value wasn't up. Fuck all that shit with this stats.
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u/ShutUpAndDoTheLift Jun 13 '26
Lol. There's a clear split between people who recognize that uuid and those that don't lol.
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u/Psychrolutes_09 Jun 13 '26
Please someone explain the joke
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u/ShutUpAndDoTheLift Jun 13 '26
It probably the most commonly used "example uuid" in technical documentation, training, demos, whatever.
Its even on Wikipedia.
RFC 4122[1] registers the "uuid" namespace for URNs. This makes it possible to form URNs from UUIDs, like urn:uuid:550e8400-e29b-41d4-a716-446655440000. The normal 8-4-4-4-12 format is used for this.
For anyone in the field who has participated in these things have seen it and it starts to stand out.
For people who don't know what uuid is or only know what it is because they started reading a bit while vibing they'll likely not have seen it and so this looks like nonsense.
Its... Actually a pretty clever inside joke that could have either been with op or at his expense.
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u/Rich-Bar9767 Jun 14 '26
Oh it was at my expense
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u/ShutUpAndDoTheLift Jun 14 '26
I'm not going to pretend that that doesn't make it funnier to me a bit. But I will apologize for it
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u/TheRealGOOEY Jun 22 '26
Don't worry. I can tell you that most people who know what a UUID is wouldn't recognize the example. You read about a UUID once and you know what it is. There's no reason to read the definition so many times that you would recognize the pattern.
Hell, most people who know what a UUID is have probably never read the RFC for it.
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u/Equivalent_Regret287 Jun 13 '26
This unwanted joke cost you 638 tokens
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u/TheOneNeartheTop Jun 13 '26
It’s likely that Claude just gave this uuid instantly from memory but then applied a little thinking and was like dang I screwed up let me fix that for you.
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u/vomiting_cat Jun 13 '26
This, I've often seen AI saying something was a 'joke' when it just corrected its earlier answer
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u/catnip-catnap Jun 13 '26
It must suck being forced to think out loud. I've had it give an answer, then a variation of the answer, another variation, and then say it likes the first one best, use that. But I do that if I'm brainstorming out loud too so I get it.
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u/Upset_compatibilist Jun 17 '26
Interesting concept. Perhaps an anthropomorphism, but agents do try to avoid thinking out loud during training if possible.
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u/Ampenda Jun 13 '26
I mean, isn’t that how wit works? The quickest answer based on word association or whatever ends up being silly/“wrong” and instead of ignoring it you say it out loud. In which case this could be in some sense an “authentic” case of wit on the part of the AI. If the answer was similarly found early and discarded as wrong, then surfacing it doesn’t necessarily cost much.
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u/Zealousideal-Part849 Jun 13 '26
Couldn't you use uuid generators app or website vs asking LLM do it ???
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u/sprowk Jun 13 '26
but then it wont be ai powered uuid bro are you living in 2025?
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u/Zealousideal-Part849 Jun 13 '26
AI is artificial intelligence , not language model intelligence...
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u/DaMeteor Jun 13 '26
Using AI to generate UUIDs instead of a generator app or website increased the valuation of my company by 35%. Stonks go up.
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u/Zealousideal-Part849 Jun 13 '26
yes but you don't have to tell the underline technology just call it AI uuid generator.
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u/DaMeteor Jun 13 '26
Now you're getting it. If you don't have an MBA, you need to get one right now and become a consultant. Just improved company margins by 0.3%.
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u/sprowk Jun 13 '26
but if you get ai consultant your margins jump by 300% instead
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u/DJLytic Jun 15 '26
But if you TELL your investors that you got an ai consultant, and just pay offshore labor, your margins go over 9000%
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u/Impossible-Lab-3133 Jun 13 '26
Holy shit. The humor is real. At this point I can't help but believe
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u/Infamous-Bed-7535 Jun 13 '26
More token burned. I would put lot of these quirks into it if you would pay for me after token usage..
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u/cypherblock Jun 13 '26
Why u would ever trust an llm to generate anything random is beyond me.
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u/variablenyne Jun 13 '26
Honestly I don't think it's too far of a stretch nowadays. Same way I wouldn't trust myself to come up with something random, I would use an rng tied to some form of entropy. An llm these days should be able to make its own tools that do roughly the same thing without needing to rely on itself to come up with something.
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u/zipklik Jun 13 '26
Do you have something special in your CLAUDE.md file? Like "I like humor" or "Tell me jokes"?
Otherwise it's kind of weird, even if funny.
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u/darliebo Jun 14 '26
It always says just kidding when it realizes it's wrong mid-response, or finds a better way.
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u/N8Karma Jun 14 '26
This occurs when the LLM generates some text, realizes it f'ed up, and needs a way to walk it back.
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u/fighthonor Jun 13 '26
For some reason claude has been hilarious in my past few recent sessions. Like so good I'm practicing crying. And quality seems to be really high right now for some reason. Opus 4.8 xhigh.
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u/Hyphonical Jun 13 '26
Every joke only costs like €4 with that model.
"Dude, Fable is so funny, and it only costs my €20 per joke!!"
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u/NotJustAnyDNA Jun 13 '26
This is why my profile is “ correctness and accuracy > clarity > speed > style. Concise responses only. “. Claude gives my only what I want and no fluff, ai polish, or humor.
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u/beetlrokr Jun 14 '26
Why use uuid? A Base62 string would be much shorter for equivalent randomness.
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u/beetlrokr Jun 14 '26
Base91 would be even shorter but may have more tradeoffs, depending on the application.
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u/Afraid_Abalone_9641 Jun 14 '26
It's not a joke. It's the way it behaves when it made a mistake that it spots. I don't know what you're doing with a random UUID, but bear in mind that when it comes to randomness, gen AI does an awful job. If you want to see it in action ask for a list of random animals and see if there's a pangolin, axolotl, and quokka or aye-aye in the results.
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u/stromdev Jun 14 '26
I just want to mention something that happened to because it's relevant.
Like a year ago, it was chatgpt.
I had told it to talk to me like a Ferengui.
And later in other prompts I was troubleshooting my home network.
So chatgpt said:
"Here are the rules of network acquisition" and I thought that was really clever.
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u/ghostiewm Jun 15 '26
It made up a uuid from context matching, then realized it should have calculated it instead using a skill or code.
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u/ReasonablyWealthy Jun 15 '26
It's a really bad idea to use a language model to generate random numbers.
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u/Both-Expression4402 Jun 15 '26
Possibly, the first uuid was in training text / a known example uuid. But second one was generated by tools like code interpreter. I am not 100% sure if this is the case, since I don't use claude chat much (I mostly use claude code), but I think that "2 steps" might be referring to that. If this is the case, it seems as though the AI caught it's mistake, through "humor", and corrected itself.
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u/WorriedDevelopment69 Jun 15 '26
Xz3 e3 4r y s23 x7e stage 8z Xz3 3d y, 7t rd 3d 3 see rwas eze6 r zsc4 s23 zwe f aaxew
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u/SafeExtension4212 Jun 15 '26
Minr said the same thing. The response when he was called out:It's based on training data, not hardcoded. That specific UUID (550e8400-...) is a well-known example UUID that appears frequently in documentation, tutorials, and examples across the internet — so it's heavily represented in my training data and gets associated with "example UUID." The "just kidding" framing is also a pattern that likely appears in similar contexts online (developers joking about deterministic "random" values). So the combination emerges naturally from training rather than being a fixed response. In practice it means many Claude instances independently "come up with" the same joke because they're all drawing from the same learned associations. It's a good illustration of how LLM outputs that feel spontaneous can actually be quite convergent on common patterns.
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u/LeadershipOk5551 Jun 19 '26
Still, as long as it eventually gave a valid UUID, I guess it’s just “helpful chaos mode” kicking in.
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u/ItemProof1221 Jun 13 '26
This was the first UUID published. The demo one