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Tiago Pimentel
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@tpimentelms

Tiago Pimentel

@tpimentelms
Postdoc at @ETH_en. Formerly, PhD student at @Cambridge_Uni.
Brasília, Brazil
tpimentelms.github.io
Joined November 2009
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  • Pinned
    @tpimentelms
    Tiago Pimentel
    @tpimentelms
    Feb 19
    checkout our new paper about the superficial alignment hypothesis :) we use algorithmic information theory to formalise this hypothesis, we unify prior work on the topic, and show how post-training affects it! follow @tvergarabrowne for more great work like this in the future!
    @tvergarabrowne
    tom
    @tvergarabrowne
    Feb 18
    first paper of the phd 🥳 the Superficial Alignment Hypothesis (SAH) argues that pre-training adds most of the knowledge to a model, and post-training merely surfaces it. however, this hypothesis has lacked a precise definition. we fix this.
    Image
  • @tpimentelms
    Tiago Pimentel
    @tpimentelms
    Jul 23
    I'm looking for emergency ACs for some interpretability + reasoning papers in EMNLP :) If you're available and think you qualify, please reach out! 📷 Ideally, you should be a postdoc (or senior PhD) for this! If you don't know if you qualify, feel free to ask me about it :)
  • @tpimentelms
    Tiago Pimentel
    @tpimentelms
    Jul 4
    If you're at #acl2026nlp, come to our talk today at the BigPicture workshop :)
    @yanaiela
    Yanai Elazar
    @yanaiela
    Jul 4
    Replying to @yanaiela
    After a coffee break, we'll resume with the second invited talk by @tpimentelms and @amuuueller (10:50) who prepared you a special co-talk: "Does mechanistic interpretability need interventions?"
    Image
    2
  • @tpimentelms
    Tiago Pimentel
    @tpimentelms
    Jun 27
    Can we normalise lazy reviews for lazy papers? If you didn't take the time to write your paper(and used an LLM for it), why should I take the time to review it? 😓
    6
  • @tpimentelms
    Tiago Pimentel
    @tpimentelms
    Jun 12
    Super cool blog post!
    @unixpickle
    Alex Nichol
    @unixpickle
    Jun 11
    Blog post about my recent optimal tokenizer exploration blog.aqnichol.com/2026/06/10/opt…
    1
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