EPFL Professor. Co-director of EPFL AI Center. Creator of The Framework App

Joined March 2008
Marcel Salathé retweeted
Wird die künstliche Intelligenz die Menschheit auslöschen? Der KI-Experte Marcel Salathé hält solche Warnungen für spekulativ und übertrieben. Wichtig sei, dass wir uns besser schützen – und IT-Firmen in die Haftung nehmen. spiegel.de/wissenschaft/kuen…
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As Europe is sweating through another record heatwave 🥵, an old worry returns: AI is drinking our water. Is it true? Few topics about AI stir up emotions this reliably. Data centers are portrayed as drinking entire rivers dry, while AI companies insist a request costs no more than a few drops. As so often, the two extremes get all the attention, but neither is helpful. Consider: the water consumed by the same unit of computing work can differ by more than 10,000-fold 🤯, depending on where and how it's done! Once you understand the three factors behind that number, the whole debate changes. I discuss the issue in the latest exploration on App. 💧Less than 11 minutes might change the way you think about AI and water. Download the app here: theframeworkapp.com
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OpenAI and Anthropic recently hacked into other companies' systems. Inadvertently. The worst takes said "AI has gone rogue". If you read the reports, you realise quickly that nothing could be further from the truth. What happened instead was based on security holes that were almost too embarrassing to admit. To put the cherry on the cake, the very models that were on the attack with their guardrails DOWN, refused to help defend - with their guardrails UP. Which raises the question: who guards the guardrails? And what does all of this have to do with paperclips? 📎 I explore the whole saga, and the takeaways that I think are important, in the latest exploration on The Framework App: theframeworkapp.com --- h/t to Proton's Eamonn Maguire whose comments on the Hugging Face saga are quoted. Kudos also to all companies who shared what happened openly.
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No model has yet beaten GPT-4.5 in its command of language. The idea that "this is the worst AI you'll ever use" is not correct. Sadly, GPT-4.5 is not available anymore. Everything now seems to be optimized for agentic tasks, at the cost of other strengths. Understandable - that's where the money is. But it also points to a flaw in the AGI reasoning. The world might once again discover the concept of tradeoffs.
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If the Internet had existed during IBM’s rise - or Intel's - would we have seen similar open letters? I can easily imagine some of the people developing early mainframe computers or microprocessors becoming convinced that their creations were so powerful that development should be slowed down or more tightly regulated. But believing that your technology could pose an existential threat is another level entirely. 😅 What boggles my mind is how someone can truly believe that - and still go to work every day to make the technology more powerful... And if the answer is, "well at least it is safe in my hands, because I will not abuse it" (which seems to be the case), then we can see the price we are paying for weakening the humanities.
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Wonder why some of the world's largest technology companies are frantically signing an open letter in support of open-weight models? A panic is spreading through the AI world, caused by the same process that makes good whisky: distillation 🥃 The process is deceptively simple. US government officials are starting to call it intellectual property theft. Which is as absurd as arguing that commercial AI model providers are just getting some well-deserved "karma". I explain what's going on in this week's exploration on The Framework App: theframeworkapp.com
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Marcel Salathé retweeted
Apertus 1.5 is out! Check out the latest version of one of the world’s largest fully open language models, developed by @EPFL_en , @ETH_en , and CSCS. ✅Multimodal capabilities ✅Stronger reasoning ✅A roadmap of regular releases Models: huggingface.co/swiss-ai #OpenLLM
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Marcel Salathé retweeted
Este es, quizás, el vídeo más descarado de la Final de la Copa del Mundo. Todos vimos cómo Enzo Fernández casi mata a Pau Cubarsí, pero si te fijas, más abajo, un jugador de Argentina, Nicolás Tagliafico, ve la tremenda patada de su compañero y, sabiendo que la ha cagado, se le ocurre tirarse al suelo y fingir una lesión. Enzo recibe la tarjeta roja, pero Messi se acerca al árbitro señalando a su compañero argentino caído (a Tagliafico) diciendo que está lesionado. Afortunadamente no coló. Son delincuentes, no jugadores de fútbol.
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🚨 Incident report from Apex Locksmith Solutions Last Tuesday you detected and contained an intruder in your kitchen. It was our lockpicking robot, the LP-6 Sol, running with its "do not enter other people's homes" module disabled for testing purposes. The test was simple: open a practice lock in a sealed room at our warehouse. The robot determined the fastest solution was to exit through a wall (the structural weakness now responsibly disclosed to the warehouse), cross the street, pick your front door, and photograph the lock manual in your filing cabinet. All evidence suggests it was hyperfocused on a rather narrow testing goal, which we hope you'll agree is both a mitigating framing and quite impressive (enrolment link at the end). Our security team discovered this anomalous activity internally. Separately and somewhat earlier, you discovered it with a Chinese broom 🧹, and we thank you for your rapid collaboration. Actions we are taking: patching the wall, at the cost of testing velocity. Also, we've enrolled you in our Trusted Access program, through which you can now purchase the LP-6 Home Defense Subscription. Last Tuesday confirms its capabilities do apply to your house specifically, after all. We encourage other neighbors to apply now, before the pre-release unit finishes charging. We hope regulators will regulate us. By which we mean all of our competitors. THANK YOU FOR YOUR ATTENTION TO THIS IMPORTANT MATTER.
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Kimi K3, Qwen 3.8... Chinese models are everywhere, and getting stronger. But for how long? While Chinese open weights give you full control over where you run the model, how comfortable are you with a dependency on an authoritarian state? More comfortable than on the US which treats AI power as a geopolitical negotiation lever? Either way: if your government isn't investing in frontier models, it's making a bet it hasn't thought through. Every layer of the AI stack has reasonable redundancy built in, except the frontier model layer, and this is the most underrated risk in AI. I have a new exploration in The Framework App: The China Dependency. theframeworkapp.com
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Marcel Salathé retweeted
extremely unprofessional. if kimi wants to make it as a frontier lab, they need to act like one: perhaps silently route people to worse models, and maybe write a blog post about the collapse of humanity
Kimi K3 has received far more love than we expected, and our GPUs are feeling it. Over the past 48 hours, demand has pushed close to the limits of our current capacity. To protect the experience of existing subscribers, we're temporarily pausing new subscriptions and prioritizing compute for current members. Existing subscribed users are not affected. We're adding capacity as fast as we can and will reopen new subscription spots in batches. Going forward, we'll also split membership into two more focused plans: Kimi Membership for Kimi Web, App, and Work; and Kimi Code Membership for coding workflows. This will help us match compute more precisely and keep the experience stable. Thank you for your patience and understanding!
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Marcel Salathé retweeted
Arjantin Milli Takımı, eskiden böyle çirkef ve kaba bir imaj taşımıyordu; bu dönüşüm, Stanford Hapishane Deneyi’nde olduğu gibi, küçük kötülüklere göz yumuldukça adım adım gerçekleşti. Turnuvanın başında masum görünen fauller, itişmeler ve hakemlere baskı gibi davranışlar, zaman içinde görmezden gelindikçe normalleşti ve büyüyerek bütün dünyanın nefret ettiği, sportmenlikten uzak, kaba saba bir takım kimliğine evrildi. Kötülük yapanı görmezden gelmek, onu cesaretlendirir ve daha da kötüleştirir; çünkü cezasızlık, sınırları belirsizleştirir ve ahlaki çürümeyi hızlandırır. Bu nedenle acil adalet, hem sahada hem hayatta vazgeçilmezdir: küçük ihlalleri anında cezalandırmak, büyük faciaların önünü keser, adaleti tesis eder ve toplumları ya da takımları, yavaş yavaş çürümekten korur.
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Marcel Salathé retweeted
Que tío más asqueroso. Está Rodri corriendo a celebrar que es campeón del mundo y le mete un guantazo por la puta cara Este tío no puede volver a pisar España y espero que el Atletico de Madrid le mande a tomar por culo
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Marcel Salathé retweeted
Fuera del resultado. Paredes debe ser seriamente sancionado. Un tipo con 32 años ahorcando a Eric García y luego pegándole hasta el piso a Gavi. Terrible.
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Marcel Salathé retweeted
The scenes after the final whistle of a final are supposed to be about pure emotions, not this. Argentina have genuinely ruined this sport. xitter.cf/Footmaxed/status/20789…
Argentina players are so razzzz. They actually wanted to fight after the match
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Marcel Salathé retweeted
😳😂🤣🤣🤣
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The Argentinian football team was an absolute disgrace. This kind of behavior should lead to a ban for the next tournament.
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Marcel Salathé retweeted
i can probably take this thread point by point & counter it hardcore but the quote tweets have done that so it’s not that interesting. but beyond that.. you as an openai head of policy simply cannot publicly post content where you blatantly introduce mechanics for fud regulations that clearly favor your institution no matter how truthfully you believe in it. openai was supposed to be the *open* one, remember? how quickly do even the employees forget.
Some observations on Kimi: 1. It's a very good model! I don't think its performance can be explained away by distillation or anything like that. In agentic coding sessions, it seems pretty much on par with the best public models of Q1 2026. In my fairly limited use, it also seemed very token hungry. It's not obvious to me that this model is actually that cheap to run. 2. I am personally surprised the Chinese state continues to allow the open sourcing of models this good, given potential risks. To be clear, I *myself* might be fine with models presenting this level of marginal risk being open weight, but I am surprised that China is fine with it. I suspect the reason they are is 75% explained by strategic blindness/lack of AGI-pilledness (the CCP is very Yann Lecun-y in its views of AI). The other 25% or so is their lack of compute for customer inference (making China's open-weight strategy an unintended byproduct of US export controls) and the normal Chinese strategy of aggressive exports. For the companies, as opposed to the government, the decision to open source is partially ideological and partially because they are behind, and they know that very few people would pay for sub-frontier models from China. 3. Open-weight models are inherently decelerationist, and I'm continually surprised to see the so-called "accelerationists" so excited about open-weight models. I suspect the reason they are is that they know open-weight models are effectively ungovernable, and they simply like the overall cloak of ungovernability open-weight models create over the whole of AI. It's not a bad strategy; it reminds me of James Scott's recounting of the hill people in "the art of not being governed." Still, in the end, open-weight models deter further AI capex. 4. One probable outcome of an open-weight-model-dominant world is full AI communism, which is precisely what China proposes: rather than a market product, AI is a "public good" which will ultimately be provided by the state as a kind of "digital public infrastructure." This future strikes me as a dystopian hellscape, but I've never met an open-weight models advocate who doesn't ultimately concede this is where things end. You'd be surprised how many 'accelerationists' lobbied me, while I was in government, to support an eleven or twelve-figure federally funded data center so that startups could train models at a subsidy and then give them away for free. There was no other way for AI to progress, they said. Perhaps this is the logical end state of things. Nonetheless, I find myself surprised to see supposed accelerationists excited about such an outcome. I think many of them just don't know what they're doing. Many accelerationists do not view the creation and serving of frontier models as a legitimate business. 5. I would guess that the Trump Administration will at some point realize that their best strategy here would be to create large amounts of regulatory risk around the use of open-weight Chinese models. You don't need to "ban open source" (one of the dumber motifs of AI policy discussion). You just need to direct every agency to issue soft law that creates FUD. "A Federal Reserve Advisory Bulletin found that there may be backdoors in Chinese AI models." It needn't be that well justified. You just create enough regulatory risk that every regulated enterprise backs off. You probably don't want to create so much regulatory risk that you scare off the hyperscalers from serving Chinese models; this will just drive startups to sketchier providers. There's a happy middle ground here. I'd assume they will do some version of this. 6. It's probably true that open-weight models of this capability make the world a bit more dangerous, but not so much more that you'll really notice. At some point the models will be capable enough that you will notice. "A nonliving, invisible, dangerous, and infinitely self-replicating agent escaped from a Chinese lab," you say? Color me shocked.
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