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Investigating how prompt politeness affects LLM accuracy (2025)

arxiv.org

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Re: Investigating how prompt politeness affects LLM accuracy (2025)

#31

Earlier quoted context omitted.

Google isn’t conversational.

I searched for "Hey Google" and got this in response: Hey! I'm here and ready to help. What’s on your mind today? Whether you need to look up information, plan a trip, or get things done, just let me know!

That's only because Google is an LLM now.

Re: Investigating how prompt politeness affects LLM accuracy (2025)

#32
post #6
post #2

Interesting. I am wondering why would anyone use a t-test when the experiment is clearly modelled by a binomial distribution: 250 independent questions and each one is either answered correctly or not (the null is that the success rate is the same).

I don't know much about stats, but does "the null is that the success rate is the same" imply that it's a sketchy methodology because they can come up with some findings ("ruder prompts are better/worse!") more often?

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Re: Investigating how prompt politeness affects LLM accuracy (2025)

#33
post #11
post #9

i only say please and thank you such that when the robots finally take over, they will remember i was nice to them.

it seems they will remember that you wasted tokens for no reason and punish you instead.

Do we see someone thanking us as wasting food? Because technically it is.

Re: Investigating how prompt politeness affects LLM accuracy (2025)

#35

Most of the comments here seem to be from people who haven’t even read the abstract, let alone the paper. The main result, mentioned in the abstract, is the opposite of what I would have guessed: > Contrary to expectations, impolite prompts consistently outperformed polite ones, with accuracy ranging from 80.8% for Very Polite prompts to 84.8% for Very Rude prompts. These findings differ from earlier studies that ass…

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Re: Investigating how prompt politeness affects LLM accuracy (2025)

#36
I got downvoted for asking a related question recently, but I also don't think people really understood what I was asking - I'm not trying to anthropomorphise LLMs to that extent.

Basically, if you tell a model "You're an absolute moron, of course that's wrong!", will it give better or worse results? How much of that response will it absorb into its persona (like some humans tend to do)? Will it try to give "safer" responses to avoid negative feedback? How much of the associated behavior can be attributed to RLHF (e.g. like the sycophantic nature of LLMs)? How much can be attributed to training data?

Obviously this will vary by model and training, but I'm trying to get a general understanding.

I recall seeing related outcomes in some of Anthropic's studies, but I'm not sure how much of this particular aspect was studied.

Re: Investigating how prompt politeness affects LLM accuracy (2025)

#37

I have always said please and thank you to LLMs, not to increase accuracy or because I'm stupid. I believe it is more about me than about the LLM, and this is anyway a habit I don't want to lose.

Is it worth getting worse results for that reason? From the article:

"Contrary to expectations, impolite prompts consistently outperformed polite ones, with accuracy ranging from 80.8% for Very Polite prompts to 84.8% for Very Rude prompts. These findings differ from earlier studies that associated rudeness with poorer outcomes, suggesting that newer LLMs may respond differently to tonal variation. "

I am not polite to LLMs because I do not want to anthropomorphise them.

Re: Investigating how prompt politeness affects LLM accuracy (2025)

#38
post #31

Earlier quoted context omitted.

I searched for "Hey Google" and got this in response: Hey! I'm here and ready to help. What’s on your mind today? Whether you need to look up information, plan a trip, or get things done, just let me know!

That's only because Google is an LLM now.

https://en.wikipedia.org/wiki/Roko%27s_basilisk ?

Re: Investigating how prompt politeness affects LLM accuracy (2025)

#39

I got downvoted for asking a related question recently, but I also don't think people really understood what I was asking - I'm not trying to anthropomorphise LLMs to that extent. Basically, if you tell a model "You're an absolute moron, of course that's wrong!", will it give better or worse results? How much of that response will it absorb into its persona (like some humans tend to do)? Will it try to give "safer" r…

Probably quite a lot - if you look at what Anthropic found around persona vectors; https://www.anthropic.com/research/persona-vectors.

I imagine the context will always sway the model to some degree, not only for the task you're trying to get it to do (aka instructions) but also its persona, how accurate it is and the way it acts.

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