Research

Fundamental interpretability research to understand and intentionally design advanced AI systems

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Fundamental Research

Neural Networks Are Already Clean

Nick CammarataOctober 15, 2026
A city with connected neighborhoods beside a knot woven from the same buildings and streets.
Applied Research

Training and Deploying Production Cyber Monitors on Kimi K3

Lubana et al.October 8, 2026
Three robots with red alerts
Applied Research

Better biosecurity monitors for AI agents via protein embeddings

Dooms et al.October 1, 2026
A grid of biological proteins.
Applied Research

Models know when they’re reward hacking — and we can catch them at scale

Bergen et al.September 17, 2026
Hero illustration for the reward hacking monitors post.
Fundamental Research

Forking Fast: Efficiently Estimating Uncertainty Dynamics in Text Generation

Bigelow et al.August 20, 2026
Fundamental Research

Uncovering Neural Geometry in Vision Models With Block-Sparse Featurizers

Fel et al.July 7, 2026
Uncovering Neural Geometry in Vision Models With Block-Sparse Featurizers
Fundamental Research

Meandering on Manifolds: The Neural Geometry of Stories Over Time

Bigelow et al.June 23, 2026
Applied Research

Predictive Data Debugging: Reveal and Shape What Your Model Learns, Before You Train

Bergen et al.June 11, 2026
Hero illustration: two cluster maps side by side labelled 'Data' and 'Concepts', with annotations like 'Jailbreaks as stories', 'Physics sycophancy', 'Questionable fanfic' on the data side, and 'Promoted concepts' and 'Inhibited concepts' on the concept side, with a scissors icon in the middle labelled 'Interventions'.
Link postApplied Research

Logits as a new monitor for evaluation awareness

Santiago AranguriJune 4, 2026
Fundamental ResearchLink post

Why Larger Models Learn More: Effects of Capacity, Interference, and Rare-Task Retention

Huang et al.June 1, 2026
Fundamental Research

Can SAEs Capture Neural Geometry?

Bhalla et al.May 21, 2026
Fundamental Research

A Geometric Calculator Inside a Neural Network

Feucht et al.May 14, 2026
Link post

Predicting Rare LLM Failures with 30× Fewer Rollouts

Aranguri & PerniceMay 13, 2026
Fundamental Research

Steering Along Manifolds to Control Neural Networks

Wurgaft et al.May 7, 2026
Fundamental Research

The World Inside Neural Networks

Geiger et al.May 7, 2026
The World Inside Neural Networks
Fundamental Research

Paper Summary: Interpreting Language Model Parameters

Bushnaq et al.May 5, 2026
A tangle of wires beside a neatly organized wiring panel
Fundamental Research

Interpreting Language Model Parameters

Bushnaq et al.May 5, 2026
A full model's weight matrices shown as heatmaps, equal to a sum of parameter components that each use only a few of the matrices
Applied Research

Verbalized Eval Awareness Inflates Measured Safety

Aranguri and BloomMay 4, 2026
Applied Research

Probe-Based Data Attribution: Surfacing and Mitigating Undesirable Behaviors in LLM Post-Training

Xiao and AranguriApril 29, 2026
Applied Research

Explaining 4.2 million genetic variants with state-of-the-art, interpretable predictions

Pearce et al.April 14, 2026
EVEE banner image
Fundamental Research

Covariance-based Sequence Pooling

Dooms et al.April 10, 2026
Applied Research

Using Self-Correcting Search to Accelerate Materials Discovery

Hazra et al.April 1, 2026
Applied Research

Reasoning Theater: Probing for Performative Chain-of-Thought

Boppana et al.March 12, 2026
Fundamental Research

Features as Rewards: Using Interpretability to Reduce Hallucinations

Prasad et al.February 11, 2026
A grid of model rollouts with hallucinated claims highlighted, each followed by an inline correction
Applied Research

Using Interpretability to Identify a Novel Class of Alzheimer's Biomarkers

Wang et al.January 28, 2026
A sketch depicting methylated DNA
Fundamental Research

Understanding Memorization via Loss Curvature

Merullo et al.November 6, 2025
The curved surface of the facade of the Museum of Pop Culture in Seattle.
Fundamental ResearchLink post

Priors in Time: Missing Inductive Biases for Language Model Interpretability

Lubana et al.November 3, 2025
Fundamental ResearchLink post

Belief Dynamics Reveal the Dual Nature of In-Context Learning and Activation Steering

Bigelow et al.November 1, 2025
Applied Research

Deploying Interpretability to Production with Rakuten: SAE Probes for PII Detection

Nguyen et al.October 28, 2025
Overall approach diagram
Fundamental ResearchLink post

Mixing Mechanisms: How Language Models Retrieve Bound Entities In-Context

Gur-Arieh et al.October 7, 2025
Fundamental ResearchLink post

Understanding Sparse Autoencoder Scaling in the Presence of Feature Manifolds

Michaud et al.September 4, 2025
Applied Research

Finding the Tree of Life in Evo 2

Pearce et al.August 28, 2025
Fundamental ResearchLink post

Adversarial Examples Are Not Bugs, They Are Superposition

Gorton & LewisAugust 26, 2025
Applied Research

Discovering Undesired Rare Behaviors via Model Diff Amplification

Aranguri & McGrathAugust 21, 2025
Fundamental ResearchLink post

The Circuits Research Landscape: Results and Perspectives

Lindsey et al.August 5, 2025
The Circuits Research Landscape: Results and Perspectives
Fundamental Research

Towards Scalable Parameter Decomposition

Bushnaq et al.June 28, 2025
Jenga tower representing SPD parameter decomposition
Fundamental Research

Replicating Circuit Tracing for a Simple Known Mechanism

Loeffler et al.June 11, 2025
Applied Research

Painting With Concepts Using Diffusion Model Latents

Cammarata et al.May 27, 2025
Paint With Ember launch header image
Fundamental Research

Under the Hood of a Reasoning Model

Hazra et al.April 15, 2025
Applied Research

Interpreting Evo 2: Arc Institute's Next-Generation Genomic Foundation Model

Gorton et al.February 20, 2025
Interpreting Evo 2 header image
Fundamental ResearchLink post

Open Problems in Mechanistic Interpretability

Sharkey et al.January 27, 2025
Applied Research

Mapping the Latent Space of Llama 3.3 70B

McGrath et al.December 23, 2024
Applied Research

Understanding and Steering Llama 3 with Sparse Autoencoders

McGrath et al.September 25, 2024

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