Matthew Finlayson

@mattf1n

@GoodfireAI fellow, PhD at @nlp_usc | Former predoc at @allen_ai on @ai2_aristo | Harvard 2021 CS & Linguistics

Los Angeles, CA

固定
Matthew Finlayson
@mattf1n
2025年10月17日
We discovered that language models leave a natural "signature" on their API outputs that's extremely hard to fake. Here's how it works 🔍 📄 arxiv.org/abs/2510.14086 1/
arxiv.org
Every Language Model Has a Forgery-Resistant Signature
The ubiquity of closed-weight language models with public-facing APIs has generated interest in forensic methods, both for extracting hidden model details (e.g., parameters) and for identifying...
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Matthew Finlayson
@mattf1n
6月10日
I had the honor of being the TA for this group of students and helping their class project mature into an accepted FAccT paper with mentorship from @jaspreetranjit_ and @swabhz. TLDR; even current LLMs exhibit negative bias toward AAVE despite their extensive safety training!
Kritee
@kkritee05
6月8日
📢 Language models exhibit stereotypical biases toward different English dialects. We find that, despite safety training, comparing texts across dialects side by side AMPLIFIES model bias! Our FAccT’26 paper: 📄arxiv.org/abs/2605.24384 🔗dill-lab.github.io/dialect_bias_l… [1/n]
Matthew Finlayson
@mattf1n
5月4日
Commuting by ferry to my first day of internship at @GoodfireAI. I can get used to this
3
Matthew Finlayson
@mattf1n
4月21日
Headed to #ICLR2026 to present this! Oral: Thurs 10:30 session 15 room 201c Poster: Thurs 3:15 Pavilion 4 #4003 iclr.cc/virtual/2026/p… DM me if you want to chat, especially about language model forensics. Also looking for surf buddies! 🌊🏄‍♂️
Matthew Finlayson
@mattf1n
2025年10月17日
We discovered that language models leave a natural "signature" on their API outputs that's extremely hard to fake. Here's how it works 🔍 📄 arxiv.org/abs/2510.14086 1/
Matthew Finlayson
@mattf1n
2025年6月23日
I didn't believe when I first saw, but: We trained a prompt stealing model that gets >3x SoTA accuracy. The secret is representing LLM outputs *correctly* 🚲 Demo/blog: mattf1n.github.io/pils 📄: arxiv.org/abs/2506.17090 🤖: huggingface.co/dill-lab/pils-… 🧑‍💻: github.com/dill-lab/PILS
Jack Morris さんと他2人
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Matthew Finlayson

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