this post was submitted on 15 Aug 2025
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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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[–] brucethemoose@lemmy.world 5 points 1 day ago (4 children)

Or it might not. It would be a huge short term risk to do so.

As FaceDeer said, that we truly don't know.

[–] dan@upvote.au 5 points 1 day ago (3 children)

OpenAI are not profitable today, and don't estimate they'll be profitable until 2029, so it's almost guaranteed that they're selling their services at a loss. Of course, that's impossible to verify - since they're a private company, they don't have to release financial statements.

[–] brucethemoose@lemmy.world 4 points 1 day ago (1 children)

That’s not what I’m saying. They’ve all but outright said they’re unprofitable.

But revenue is increasing. Now, if it stops increasing like they’ve “leveled out”, that is a problem.

Hence it’s a stretch to assume they would decrease costs for a more expensive model since that would basically pop their bubble well before 2029.

[–] dan@upvote.au 2 points 21 hours ago* (last edited 21 hours ago)

Revenue is increasing, but according to their own estimates, it has to increase 10x in order for them to become profitable.

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