Wassim (Wes) Bouaziz

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Wassim (Wes) Bouaziz

Wassim (Wes) Bouaziz

@_Vassim

AI Scientist - Safety & Security @MistralAI | PhD from @MetaAI and @Polytechnique I confront equations and inequalities💡 my tweets reflect my own views only.

Paris' suburb Katılım Aralık 2010
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Ambroise Odonnat @ ICML 2026
Ambroise Odonnat @ ICML 2026@AmbroiseOdonnat·
In the last project, we study transformer training in a controllable and interpretable setting, providing a visual sandbox to monitor tokens during gradient descent. Thanks to @_Vassim and Vivien Cabannes for the really nice collab. 📜openreview.net/pdf?id=eJTS0bh…
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Kunhao Zheng
Kunhao Zheng@KunhaoZ·
🧵 For 2 RL checkpoints trained differently, you can just weight extrapolate them and it works! Bonus: these extrapolated checkpoints are complementary policies -> Get exploration and diversity for free -> Better inference scaling when ensembling Paper: arxiv.org/abs/2605.28751
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Rosinality@rosinality

arxiv.org/abs/2605.28751 Now many studies try to do extrapolation through model merging. arxiv.org/abs/2605.26484

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Wassim (Wes) Bouaziz
Wassim (Wes) Bouaziz@_Vassim·
I'm actually in Rio 🇧🇷☀️ this week for ICLR to present Winter Soldier ❄️! Keen to meet folks working on: AI Security, Reasoning, Memory...😏🤐 We also have open positions at Mistral AI on several topics, including AI Safety! 🛡️ Drop a reply or DM me if you want to chat !
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Wassim (Wes) Bouaziz
Wassim (Wes) Bouaziz@_Vassim·
I'm particularly proud of the Winter Soldier project, being my last PhD project, and it's great to see the broader community engaging with these ideas 🤗 Data are not just passive inputs, and training on them could lead to similar risks as running an untrusted program 🛡️💻
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Wassim (Wes) Bouaziz
Wassim (Wes) Bouaziz@_Vassim·
Excited to see the recent discussions around trait transfer in LLMs! 🦉 It validates the idea of Indirect Data Poisoning we introduced in our Winter Soldier paper (arxiv.org/abs/2506.14913) which predates the Subliminal Learning work. It's important to connect these lines of work.
Owain Evans@OwainEvans_UK

Our paper on Subliminal Learning was just published in Nature! Last July we released our preprint. It showed that LLMs can transmit traits (e.g. liking owls) through data that is unrelated to that trait (numbers that appear meaningless). What’s new?🧵

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Ambroise Odonnat @ ICML 2026
Ambroise Odonnat @ ICML 2026@AmbroiseOdonnat·
✨Vision Transformer finetuning benefits from non-smooth components 🔍Our new paper shows that high-plasticity transformer modules adapt better during finetuning. 🍕 Whether you prefer theory or experiments, we hope you'll find something you like in this work. Details below 🧵
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Basile Terver
Basile Terver@BasileTerv987·
My first PhD paper is out! 🎓 "What Drives Success in Physical Planning with Joint-Embedding Predictive World Models?" tl:dr: JEPA-WMs for robotics: learn dynamics on top of visual encoders, optimize actions towards goal 👇 w/ @JimmyTYYang1, Jean Ponce, @AdrienBardes, @ylecun
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Wassim (Wes) Bouaziz
Wassim (Wes) Bouaziz@_Vassim·
Big milestone 🎓✨ I’ve successfully defended my PhD thesis at @Polytechnique in collaboration with @AIatMeta ! "Towards Secure and Trustworthy Machine Learning: From Data Poisoning to Ownership Verification" Grateful to my advisors, jury, and everyone who supported me 🙏
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Wassim (Wes) Bouaziz@_Vassim·
Open review leak has actual implications... It's safe to assume anonymity is compromised this year for @iclr_conf
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Federico Baldassarre
Federico Baldassarre@BaldassarreFe·
Say hello to DINOv3 🦖🦖🦖 A major release that raises the bar of self-supervised vision foundation models. With stunning high-resolution dense features, it’s a game-changer for vision tasks! We scaled model size and training data, but here's what makes it special 👇
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Belen Alastruey
Belen Alastruey@b_alastruey·
🚀New paper alert! 🚀 In our work @AIatMeta we dive into the struggles of mixing languages in largely multilingual Transformer encoders and use the analysis as a tool to better design multilingual models to obtain optimal performance. 📄: arxiv.org/abs/2508.02256 🧵(1/n)
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Owain Evans
Owain Evans@OwainEvans_UK·
New paper & surprising result. LLMs transmit traits to other models via hidden signals in data. Datasets consisting only of 3-digit numbers can transmit a love for owls, or evil tendencies. 🧵
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