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The University of Rhode Island's AI lab estimates that GPT-5 averages just over 18 Wh per query, so putting all of ChatGPT's reported 2.5 billion requests a day through the model could see energy usage as high as 45 GWh.

A daily energy use of 45 GWh is enormous. A typical modern nuclear power plant produces between 1 and 1.6 GW of electricity per reactor per hour, so data centers running OpenAI's GPT-5 at 18 Wh per query could require the power equivalent of two to three nuclear power reactors, an amount that could be enough to power a small country.

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[-] skisnow@lemmy.ca 24 points 2 days ago

There's such a huge gap between what I read about GPT-5 online, versus the overwhelmingly disappointing results I get from it for both coding and general questions.

I'm beginning to think we're in the end stages of Dead Internet, where basically nothing you see online has any connection to reality.

[-] CheeseNoodle@lemmy.world 8 points 1 day ago

People who fawn over generative AI haven't tried to use it for more than 5 seconds. I wish it could run a ttrpg game for me or even just remember the details of its original prompt but its not even close.

[-] ghen@sh.itjust.works 3 points 1 day ago

The stock market is barely connected to reality and that is required to be updated every 3 months by every single company. Just imagine what the internet's going to be like.

[-] ipkpjersi@lemmy.ml 2 points 1 day ago* (last edited 1 day ago)

Well yeah, it's a for-profit company. They exist solely to make money, that's their entire goal.

It's almost all marketing and has been for a while. ChatGPT peaked with 4o (and 4.5 if you used their API), 4.1 was a step backwards despite them calling it an improvement, and 5 was another step backwards.

They are not any closer to AGI, and we're not going to see AGI from LLMs no matter how much they claim just how close we are to seeing AGI.

[-] AgentOrangesicle@lemmy.world 11 points 2 days ago

Isn't this the back plot of the game, Rain World? With the slug cats and the depressed robots stuck on a decaying world when the sapient, organic species all left?

[-] Patches@ttrpg.network 14 points 2 days ago

Spoilers dude.

[-] Hadriscus@jlai.lu 5 points 2 days ago

I didn't know there was such a backstory

[-] jsomae@lemmy.ml 16 points 2 days ago* (last edited 2 days ago)

For reference, this is roughly equivalent to playing a PS5 game for 4 minutes (based on their estimate) to 10 minutes (their upper bound)

calulationsource https://www.ecoenergygeek.com/ps5-power-consumption/

Typical PS5 usage: 200 W

TV: 27 W - 134 W → call it 60 W

URI's estimate: 18 Wh / 260 W → 4 minutes

URI's upper bound: 48 Wh / 260 W →10 minutes

[-] bier@feddit.nl 2 points 1 day ago

It is also the equivalent of letting a LED light bulb run for an entire day (depending on bright it is, some LED bulbs use under 2 watts of power).

[-] MangoCats@feddit.it 5 points 2 days ago* (last edited 2 days ago)

I was just thinking, in more affordable electric regions of the US that's about $5 worth of electricity, per thousand requests. You'd tip a concierge $5 for most answers you get from Chat GPT (if they could provide them...) and the concierge is likely going to use that $5 to buy a gallon and a half of gasoline, which generates a whole lot more CO2 than the nuclear / hydro / solar mixed electrical generation, in reasonably priced electric regions of the US...

[-] jsomae@lemmy.ml 2 points 1 day ago* (last edited 13 hours ago)

That doesn't seem right. By my calculations it should be like 5¢. Can you show your work?

Edit: didn't read. You said "per thousand requests."

[-] MangoCats@feddit.it 1 points 17 hours ago

Depends on your electric rates, of course. The gotcha in this statement is "per thousand requests" which cranks up the power usage from 40 watt-hours to 40 kilowatt hours. Say you've got "affordable" electricity at 12.5 cents per kilowatt hour: 40 * .125 = 5.

[-] buttnugget@lemmy.world 4 points 2 days ago

I love playing PS5 games!

[-] A_norny_mousse@feddit.org 140 points 3 days ago

I don't care how rough the estimate is, LLMs are using insane amounts of power, and the message I'm getting here is that the newest incarnation uses even more.

BTW a lot of it seems to be just inefficient coding as Deepseek has shown.

[-] ThePowerOfGeek@lemmy.world 50 points 3 days ago

BTW a lot of it seems to be just inefficient coding as Deepseek has shown.

Kind of? Inefficient coding is definitely a part of it. But a large part is also just the iterative nature of how these algorithms operate. We might be able to improve that via code optimization a little bit. But without radically changing how these engines operates it won't make a big difference.

The scope of the data being used and trained on is probably a bigger issue. Which is why there's been a push by some to move from LLMs to SLMs. We don't need the model to be cluttered with information on geology, ancient history, cooking, software development, sports trivia, etc if it's only going to be used for looking up stuff on music and musicians.

But either way, there's a big 'diminishing returns' factor to this right now that isn't being appreciated. Typical human nature: give me that tiny boost in performance regardless of the cost, because I don't have to deal with. It's the same short-sighted shit that got us into this looming environmental crisis.

[-] kescusay@lemmy.world 16 points 3 days ago

Coordinated SLM governors that can redirect queries to the appropriate SLM seems like a good solution.

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[-] kautau@lemmy.world 25 points 3 days ago* (last edited 3 days ago)

And water usage which will also increase as fires increase and people have trouble getting access to clean water

https://techhq.com/news/ai-water-footprint-suggests-that-large-language-models-are-thirsty/

[-] ThePinkUnicorn@lemdro.id 5 points 2 days ago* (last edited 2 days ago)

For training yes, but during operation by this studies measure Deepseek actually has an even higher power draw, according to the article. Even models with more efficient programming use insane amounts of electricity

This was higher than all other tested models, except for OpenAI's o3 (25.35 Wh) and Deepseek's R1 (20.90 Wh).

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[-] antihumanitarian@lemmy.world 7 points 2 days ago

The last 6 to 12 months of open models has pretty clearly shown you can substantially better results with the same model size or the same results with smaller model size. Eg Llama 3. 1 405B being basically equal to Llama 3.3 70B or R1-0528 being substantially better than R1. The little information available about GPT 5 suggests it uses mixture of experts and dynamic routing to different models, both of which can reduce computation cost dramatically. Additionally, simplifying the model catalogue from 9ish(?) to 3, when combined with their enormous traffic, will mean higher utilization of batch runs. Fuller batches run more efficiently on a per query basis.

Basically they can't know for sure.

[-] Deflated0ne@lemmy.world 23 points 3 days ago

And an LLM that you could run local on a flash drive will do most of what it can do.

[-] EncryptKeeper@lemmy.world 9 points 2 days ago

I mean no not at all, but local LLMs are a less energy reckless way to use AI

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[-] lefixxx@lemmy.world 1 points 1 day ago

Can you give an example?

[-] ckmnstr@lemmy.world 7 points 3 days ago

Probably not a flash drive but you can get decent mileage out of 7b models that run on any old laptop for tasks like text generation, shortening or summarizing.

[-] sp3ctr4l@lemmy.dbzer0.com 29 points 3 days ago

Fucking Doc Brown could power a goddamn time machine with this many jiggawatts, fuck I hate being stuck in this timeline.

[-] yesman@lemmy.world 41 points 3 days ago

I think AI power usage has an upside. No amount of hype can pay the light bill.

AI is either going to be the most valuable tech in history, or it's going to be a giant pile of ash that used to be VC capital.

[-] themurphy@lemmy.ml 20 points 3 days ago

It will not go away at this point. Too many daily users already, who uses it for study, work, chatting, looking things up.

If not OpenAI, it will be another service.

[-] queermunist@lemmy.ml 8 points 3 days ago

Those users are not paying a sustainable price, they're using chatbots because they're kept artificially cheap to increase use rates.

Force them to pay enough to make these bots profitable and I guarantee they'll stop.

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[-] eager_eagle@lemmy.world 38 points 3 days ago

Bit of a clickbait. We can't really say it without more info.

But it's important to point out that the lab's test methodology is far from ideal.

The team measured GPT-5’s power consumption by combining two key factors: how long the model took to respond to a given request, and the estimated average power draw of the hardware running it.

What we do know is that the price went down. So this could be a strong indication the model is, in fact, more energy efficient. At least a stronger indicator than response time.

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[-] plyth@feddit.org 3 points 2 days ago* (last edited 2 days ago)

That are 25 request per kWh. At 10 to 25cents per kWh that's 1cent per request. That doesn't seem to be too expensive.

[-] gens@programming.dev 3 points 2 days ago

Hmmm. Sure. But I find people don't understand how much one kWh really is. A 500W drill can twist your arm. Imagine yourself twisting someones arm with all you got for a whole hour. Or idk. Either way it's a lot of energy.

And then you think about how much more energy a car uses then a human does. And then you find out about hot water...

[-] MangoCats@feddit.it 2 points 2 days ago

Which is why they're giving everybody free access, for now.

[-] nightwatch_admin@feddit.nl 18 points 3 days ago

Of course there are comments doubting the accuracy, which by itself is valid, but they are merely doing it to defend AI. IMHO, even at a fifth of the estimates, we’re talking humongous amounts of power, all for a so-so search engine, half arsed chatbots and dubious nsfw images mostly. And let’s not forget: it may be inaccurate and estimates are TOO LOW. Now wouldn’t that be fun?

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[-] kescusay@lemmy.world 15 points 3 days ago

How the hell are they going to sustain the expense to power that? Setting aside the environmental catastrophe that this kind of "AI" entails, they're just not very profitable.

[-] gdog05@lemmy.world 13 points 3 days ago

Look at all the layoffs they've been able to implement with the mere threat that AI has taken their jobs. It's very profitable, just not in a sustainable way. But sustainability isn't the goal. Feudal state mindset in the populace is.

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[-] Melonpoly@lemmy.world 12 points 3 days ago

It takes less energy to dry a full load of clothes

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[-] pHr34kY@lemmy.world 9 points 3 days ago

Tech hasn't improved that much in the last in the last decade. All that's happened is that more cores have been added. The single-thread speed of a CPU is stagnant.

My home PC consumes more power than my Pentium 3 consumed 25 years ago. All efficiency gains are lost to scaling for more processing power. All improvements in processing power are lost to shitty, bloated code.

We don't have the tech for AI. We're just scaling up to the electrical senand demand of a small country and pretending we have the tech for AI.

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this post was submitted on 15 Aug 2025
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