activity
20242026
collaborators

8 papers

cs.CL2026

Goldfish: Monolingual Language Models for 350 Languages

Tyler A. Chang, Catherine Arnett, Zhuowen Tu +1

For many low-resource languages, the only available language models are large multilingual models trained on many languages simultaneously. Despite state-of-the-art performance on…

cs.CL2026

How Open Must Language Models be to Enable Reliable Scientific Inference?

James A. Michaelov, Catherine Arnett, Tyler A. Chang +7

How does the extent to which a model is open or closed impact the scientific inferences that can be drawn from research that involves it? In this paper, we analyze how restrictions…

cs.CL2025

Bigram Subnetworks: Mapping to Next Tokens in Transformer Language Models

Tyler A. Chang, Benjamin K. Bergen

In Transformer language models, activation vectors transform from current token embeddings to next token predictions as they pass through the model. To isolate a minimal form of th…

cs.CL2025

Language Model Behavioral Phases are Consistent Across Architecture, Training Data, and Scale

James A. Michaelov, Roger P. Levy, Benjamin K. Bergen

We show that across architecture (Transformer vs. Mamba vs. RWKV), training dataset (OpenWebText vs. The Pile), and scale (14 million parameters to 12 billion parameters), autoregr…

cs.CL2025

Explaining and Mitigating Crosslingual Tokenizer Inequities

Catherine Arnett, Tyler A. Chang, Stella Biderman +1

The number of tokens it takes to encode parallel text in different languages is known to vary. These disparities are called token premiums. Having high token premiums leads to less…

cs.CL2025

Not quite Sherlock Holmes: Language model predictions do not reliably differentiate impossible from improbable events

James A. Michaelov, Reeka Estacio, Zhien Zhang +1

Can language models reliably predict that possible events are more likely than merely improbable ones? By teasing apart possibility, typicality, and contextual relatedness, we show…