this post was submitted on 15 Aug 2025
630 points (96.1% liked)

Technology

74143 readers
3675 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots


founded 2 years ago
MODERATORS
 

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.

top 50 comments
sorted by: hot top controversial new old
[–] skisnow@lemmy.ca 22 points 1 day ago (3 children)

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.

[–] ghen@sh.itjust.works 3 points 17 hours 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.

[–] CheeseNoodle@lemmy.world 8 points 23 hours 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.

[–] ipkpjersi@lemmy.ml 2 points 17 hours ago* (last edited 17 hours 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 10 points 1 day ago (2 children)

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?

[–] Hadriscus@jlai.lu 5 points 1 day ago

I didn't know there was such a backstory

[–] Patches@ttrpg.network 14 points 1 day ago

Spoilers dude.

[–] jsomae@lemmy.ml 17 points 1 day ago* (last edited 1 day ago) (3 children)

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).

[–] buttnugget@lemmy.world 5 points 1 day ago

I love playing PS5 games!

[–] MangoCats@feddit.it 3 points 1 day ago* (last edited 1 day ago) (1 children)

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 17 hours ago* (last edited 17 hours ago)

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

[–] antihumanitarian@lemmy.world 7 points 1 day 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.

[–] Sam_Bass@lemmy.world 1 points 23 hours ago (2 children)

And how many milliwatts does an actual brain use?

[–] homesweethomeMrL@lemmy.world 3 points 16 hours ago (1 children)
[–] Sam_Bass@lemmy.world 2 points 16 hours ago

Ahh but you need 8 for a round trip

[–] Warl0k3@lemmy.world 8 points 20 hours ago (1 children)

It's shockingly tricky to answer precisely, but the commonly held value is that a human brain runs on about 20w, regardless of the computational load placed on it.

[–] Sam_Bass@lemmy.world 1 points 20 hours ago

So maybe .5 kwh/d. Still vastly more efficient than a code-based one.

[–] TheGrandNagus@lemmy.world 114 points 2 days ago* (last edited 2 days ago) (3 children)

I have an extreme dislike for OpenAI, Altman, and people like him, but the reasoning behind this article is just stuff some guy has pulled from his backside. There's no facts here, it's just "I believe XYX" with nothing to back it up.

We don't need to make up nonsense about the LLM bubble. There's plenty of valid enough criticisms as is.

By circulating a dumb figure like this, all you're doing is granting OpenAI the power to come out and say "actually, it only uses X amount of power. We're so great!", where X is a figure that on its own would seem bad, but compared to this inflated figure sounds great. Don't hand these shitty companies a marketing win.

[–] gil2455526@lemmy.eco.br 1 points 19 hours ago

Yeah, I saw some people speculating GPT-5 is having worse performance in some tasks than older models but still being forced to everyone because it's a consolidation and cost cutting version, but how could it be cutting costs if it consumes 8 times more power?

[–] MangoCats@feddit.it 3 points 1 day ago* (last edited 1 day ago) (1 children)

This figure is already not bad. 40 watt hours = 0.04kWh - you know kWh? That unit on your electric bill that is around $0.18 per kWh (and data centers tend to be in lower cost electric areas, closer to $0.11/kWh.) Still, 40Wh would register on your home electric bill at $0.0072, less than a penny. For comparison, an average suburban 4 ton AC unit draws 4kW - that 40Wh request? 1/100th of an hour of AC for your home, about 36 seconds of air conditioning. I don't know that this article is making anybody "look bad" in terms of power used.

load more comments (1 replies)
load more comments (1 replies)
[–] A_norny_mousse@feddit.org 136 points 2 days ago (5 children)

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.

[–] ThePinkUnicorn 5 points 1 day ago* (last edited 1 day ago) (2 children)

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).

load more comments (2 replies)
[–] ThePowerOfGeek@lemmy.world 49 points 2 days ago (4 children)

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.

load more comments (4 replies)
[–] kautau@lemmy.world 24 points 2 days ago* (last edited 2 days ago) (8 children)

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/

load more comments (8 replies)
load more comments (2 replies)
[–] Deflated0ne@lemmy.world 23 points 2 days ago (5 children)

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

[–] lefixxx@lemmy.world 1 points 21 hours ago

Can you give an example?

[–] EncryptKeeper@lemmy.world 10 points 1 day ago (6 children)

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

load more comments (6 replies)
load more comments (3 replies)
[–] sp3ctr4l@lemmy.dbzer0.com 27 points 2 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 43 points 2 days ago (13 children)

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.

load more comments (13 replies)
[–] eager_eagle@lemmy.world 34 points 2 days ago (3 children)

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.

load more comments (3 replies)
load more comments
view more: next ›