🚨 Registration is live! 🚨 The New England Mechanistic Interpretability (NEMI) Workshop is happening Aug 22nd 2025 at Northeastern University! A chance for the mech interp community to nerd out on how models really work 🧠🤖 🌐 Info: nemiconf.github.io/summer25/ 📝 Register: forms.gle/v4kJCweE3UUH...

Can we uncover the list of topics a language model is censored on? Refused topics vary strongly among models. Claude-3.5 vs DeepSeek-R1 refusal patterns:

Announcing ARBOR, an open research community for collectively understanding how reasoning models like openai-o3 and deepseek-r1 work. We invite all researchers and enthusiasts to this initiative by @wattenberg.bsky.social's and @davidbau.bsky.social's lab. arborproject.github.io

Addressing key concerns about AI competition. darioamodei.com/on-deepseek-...

The #38c3 Chaos Computer Conference was a blast! 🚀 Find the accompanying code for my intro workshop on activation steering in the thread.

Sparse Autoencoders (SAEs) are popular, with 10+ new approaches proposed in the last year. How do we know if we are making progress? The field has relied on imperfect proxy metrics. We are releasing SAE Bench, a suite of 8 SAE evaluations! Project co-led with Adam Karvonen.

More big news! Applications are open for the NDIF Summer Engineering Fellowship—an opportunity to work on cutting-edge AI research infrastructure this summer in Boston! 🚀

Safe travels to #NeurIPS2025 in Vancouver BC! Join our poster sessions on *Measuring Progress in Dictionary Learning with Board Game Models* and *Evaluating Sparse Autoencoders on Concept Erasure Tasks*. Reach out brainstorm future interpretability benchmarks.