Dr Sasha Luccioni
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sashamtl.bsky.social
Dr Sasha Luccioni
@sashamtl.bsky.social
Climate & AI Lead @HuggingFace, TED speaker, WiML board member, TIME AI 100 (She/her/Dr/🦋)
Well folks, the butterfly's out of the bag -- I'm doing another TED talk! 🦋 🎤

Catch me during NYC Climate Week on September 24th for an evening of talks hosted by TED Countdown -- I will be talking about all things AI and sustainability 🌍
countdown.ted.com/ai-for-clima...
August 8, 2025 at 1:29 PM
Sometimes it's hard to find allies in a big room full of people talking about AI.. thankfully @abeba.bsky.social is always there to kick ass and call for accountability 🦋
July 8, 2025 at 6:38 PM
In it, we discuss how transparency around the environmental impacts of AI has been declining over the years, resulting in a total lack of disclosure about the most popular models that we use now, precluding us from making informed choices. 💻
June 20, 2025 at 2:44 PM
Does a ChatGPT query really use ten times more energy than a Google search? Does training any AI model emit as much CO2 as 5 cars? and can AI help us reduce global GHG emissions by 10%? 🤔

We tracked down the origins of these numbers 🕵‍♀️ and wrote a paper about it!

arxiv.org/abs/2506.15572
June 20, 2025 at 2:44 PM
Your Honor, please let the record reflect that I had a massive crush on Pedro Pascal way before everyone else did ... over 2 years ago.
Check out the evergreen Space I made to find your inner Pedro here! huggingface.co/spaces/sasha...
June 16, 2025 at 9:30 PM
Never thought I'd see my name in a museum exhibit! 🥹
A quote from my TED talk is featured in an exhibit on AI at the Exploratorium in San Francisco -- go check it out if you're in town!
June 13, 2025 at 1:01 PM
People saying "thank you" to ChatGPT is apparently costing OpenAI tens of millions of dollars -- but how does that translate to energy? ⚡

We ran some experiments where we show that the total energy consumed is ~0.245 Wh (roughly equivalent to powering a 5 W LED bulb for approximately 3 minutes).
June 13, 2025 at 9:53 AM
Finally some numbers about ChatGPT's energy and water use? ⚡

Even if this is the true amount of energy used for a query (and that's a big if!), multiplied by the billions of queries a day, this adds up massively.

And that's not counting image generation, which is much more energy-intensive!
June 11, 2025 at 9:44 AM
"𝘐𝘧 𝘵𝘩𝘦 𝘰𝘣𝘴𝘦𝘳𝘷𝘦𝘥 𝘵𝘳𝘦𝘯𝘥𝘴 𝘤𝘰𝘯𝘵𝘪𝘯𝘶𝘦, 𝘵𝘩𝘦 𝘭𝘦𝘢𝘥𝘪𝘯𝘨 𝘈𝘐 𝘴𝘶𝘱𝘦𝘳𝘤𝘰𝘮𝘱𝘶𝘵𝘦𝘳 𝘪𝘯 2030 𝘸𝘪𝘭𝘭 𝘳𝘦𝘲𝘶𝘪𝘳𝘦 9 𝘎𝘞 𝘰𝘧 𝘱𝘰𝘸𝘦𝘳 (𝘦𝘲𝘶𝘪𝘷𝘢𝘭𝘦𝘯𝘵 𝘵𝘰 9 𝘯𝘶𝘤𝘭𝘦𝘢𝘳 𝘳𝘦𝘢𝘤𝘵𝘰𝘳𝘴, 𝙖 𝙨𝙘𝙖𝙡𝙚 𝙗𝙚𝙮𝙤𝙣𝙙 𝙖𝙣𝙮 𝙚𝙭𝙞𝙨𝙩𝙞𝙣𝙜 𝙞𝙣𝙙𝙪𝙨𝙩𝙧𝙞𝙖𝙡 𝙛𝙖𝙘𝙞𝙡𝙞𝙩𝙮)"
And the conclusion: "𝘗𝘰𝘸𝘦𝘳 𝘤𝘰𝘯𝘴𝘵𝘳𝘢𝘪𝘯𝘵𝘴 𝘸𝘪𝘭𝘭 𝘭𝘪𝘬𝘦𝘭𝘺 𝘣𝘦𝘤𝘰𝘮𝘦 𝘵𝘩𝘦 𝘱𝘳𝘪𝘮𝘢𝘳𝘺 𝘣𝘰𝘵𝘵𝘭𝘦𝘯𝘦𝘤𝘬 𝘧𝘰𝘳 𝘈𝘐 𝘴𝘶𝘱𝘦𝘳𝘤𝘰𝘮𝘱𝘶𝘵𝘦𝘳 𝘨𝘳𝘰𝘸𝘵𝘩"
June 9, 2025 at 6:37 PM
Main takeaways from @epochai.bsky.social analysis:
"𝘤𝘰𝘮𝘱𝘶𝘵𝘢𝘵𝘪𝘰𝘯𝘢𝘭 𝘱𝘦𝘳𝘧𝘰𝘳𝘮𝘢𝘯𝘤𝘦 𝘰𝘧 𝘈𝘐 𝘴𝘶𝘱𝘦𝘳𝘤𝘰𝘮𝘱𝘶𝘵𝘦𝘳𝘴 𝘩𝘢𝘴 𝘥𝘰𝘶𝘣𝘭𝘦𝘥 𝘦𝘷𝘦𝘳𝘺 𝘯𝘪𝘯𝘦 𝘮𝘰𝘯𝘵𝘩𝘴, 𝘸𝘩𝘪𝘭𝘦 𝘩𝘢𝘳𝘥𝘸𝘢𝘳𝘦 𝘢𝘤𝘲𝘶𝘪𝘴𝘪𝘵𝘪𝘰𝘯 𝘤𝘰𝘴𝘵 𝘢𝘯𝘥 𝘱𝘰𝘸𝘦𝘳 𝘯𝘦𝘦𝘥𝘴 𝘣𝘰𝘵𝘩 𝘥𝘰𝘶𝘣𝘭𝘦𝘥 𝘦𝘷𝘦𝘳𝘺 𝘺𝘦𝘢𝘳."
June 9, 2025 at 6:37 PM
In it, I describe how some of the biggest models may often be the best performing... at a high cost in compute and energy.
Measuring both on context-specific data is important to measure both real-world performance and efficiency!
May 28, 2025 at 1:25 PM
The irony of writing an op-ed about how we need more numbers about AI's energy usage... and getting publicly attacked by corporate greenwashers about the fact that the numbers I use are inaccurate.
I mean, yes, surely, but... the only way to prove that is by reporting them in the first place? 🤷
May 28, 2025 at 1:06 PM
Can't think of a better way to spend a rainy Saturday than reading @karenhao.bsky.social's new book! 📖
I'm stocking up on popcorn for what's guaranteed to be a wild ride! 🍿 🍿
May 17, 2025 at 8:24 PM
I'm one very happy butterfly at the @hf.co HQ in Brooklyn! 🦋🤗
May 15, 2025 at 2:09 AM
The butterfly has landed in Brooklyn! 🦋🦋
May 13, 2025 at 3:47 PM
Someone used AI to generate an image of me to...illustrate a LinkedIn post about the environmental impacts of AI? Oh, the irony...🤢
(but that creepy AI clone of me is going to haunt my nightmares until the end of time)
May 12, 2025 at 2:53 PM
In the year of our Lord 2025... we are still putting on makeup on women without their consent.
It's truly like feminism never happened 🙅‍♀️
(I have been ranting about this ever since people started using it to demonstrate GANs back in the 2010s, I can't believe it's still an "acceptable" task in AI!)
May 8, 2025 at 3:24 PM
I've been at Hugging Face for almost 4 (!) years and as part of my journey, I've gotten increasingly convinced that open-source AI is a win for sustainability because it lets us 𝗥𝗲𝗱𝘂𝗰𝗲, 𝗥𝗲𝘂𝘀𝗲 and 𝗥𝗲𝗰𝘆𝗰𝗹𝗲 AI models and datasets 🌱
huggingface.co/blog/sasha/r...
May 7, 2025 at 3:18 PM
The "3 Wh per ChatGPT query" estimate is back and haunting my social media feeds! 🧟‍♀️

First of all -- that number is a back of the envelope calculation 𝗯𝗮𝘀𝗲𝗱 𝗼𝗻 𝗹𝗶𝘁𝘁𝗹𝗲 𝗺𝗼𝗿𝗲 𝘁𝗵𝗮𝗻 𝘃𝗶𝗯𝗲𝘀 𝗮𝗻𝗱 𝗴𝘂𝗲𝘀𝘀𝘄𝗼𝗿𝗸.
May 6, 2025 at 2:53 PM
We just integrated the new Qwen3-8B into Chat UI Energy and asked it to do a simple multiplication problem.
What's the energy cost?
→ Without reasoning: wrong (😅), but low energy use
→ With reasoning: correct (!!)… but using 42x more energy!
April 29, 2025 at 7:53 PM
The special International Energy Agency report about Energy and AI is out!
iea.blob.core.windows.net/assets/86ed1...
Hope this will spark a multitude of discussions and debates, and help us collectively come to a better understanding of how AI's energy demands are evolving over time.
April 10, 2025 at 4:03 PM
Discussions around AI ethics and sustainability tend to happen in different circles, with different people and from different perspectives... but what if we had these important conversations together? 🤝
April 2, 2025 at 1:52 PM
This website is amazing 🤖🦄
I'll check it every day to make sure we haven't reached AGI yet 😝
Thank you @yjernite.bsky.social for the share!
gpt-unicorn.adamkdean.co.uk
March 28, 2025 at 7:18 PM
I had such an amazing time repping women in tech and chatting about all things AI, ethics and sustainability at @radiocanadainfo.bsky.social !
In these times of change and social pressure, having safe spaces like this is so important 🦋💖
March 27, 2025 at 10:33 AM
In the plot below, you can see the top datacenters by operational load. Let's focus on Virginia, with the most capacity *by far*. 𝟱𝟱% 𝗼𝗳 𝗶𝘁𝘀 𝗲𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗶𝘁𝘆 𝗰𝗼𝗺𝗲𝘀 𝗳𝗿𝗼𝗺 𝗻𝗮𝘁𝘂𝗿𝗮𝗹 𝗴𝗮𝘀, 𝘄𝗶𝘁𝗵 𝗼𝗻𝗹𝘆 𝟭𝟮% 𝗰𝗼𝗺𝗶𝗻𝗴 𝗳𝗿𝗼𝗺 𝗿𝗲𝗻𝗲𝘄𝗮𝗯𝗹𝗲𝘀.

How about Beijing? Roughly 𝟲𝟭% 𝗼𝗳 𝗶𝘁𝘀 𝗲𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗶𝘁𝘆 𝗰𝗼𝗺𝗲𝘀 𝗳𝗿𝗼𝗺 𝗯𝘂𝗿𝗻𝗶𝗻𝗴 𝗰𝗼𝗮𝗹.
March 19, 2025 at 7:24 PM