Timeline

Language Model "Shape"

Alex Zhang @a1zhang

Language Model "Shape"

Some short musings on the shape of language models, e.g. what it means to design a language model around a harness, and not the other way around.

51 replies 257 retweets 2,390 likes 58 shares
Speculative Programmatic Tool Calling

Alex Zhang @a1zhang

Speculative Programmatic Tool Calling

Speculative programmatic tool calling pre-launches tool calls from a partially generated REPL program, while the harness is still producing tokens, instead of waiting for the whole generation to finish.

#harnesses #speculation #RLM #tool-calling

57 replies 205 retweets 1,788 likes 89 shares
Language model harnesses are compositional generalizers

Alex Zhang @a1zhang

Language model harnesses are compositional generalizers

Modern post-training brute-forces ever more environments and ever longer horizons, because frontier Transformers are still poor at compositional generalization. A good harness makes every model call locally in-distribution, so what it learns carries across lengths and domains.

#harnesses #compositional #locally #in-distribution

77 replies 414 retweets 2,953 likes 188 shares
A Mini Exercise on the Mismanaged Geniuses Hypothesis (RLMs on LongCoT)

Alex Zhang @a1zhang

A Mini Exercise on the Mismanaged Geniuses Hypothesis (RLMs on LongCoT)

We underestimate how good language models actually are, and they are inhibited by how we use them. On LongCoT, frontier models fall short of compositional reasoning tasks whose pieces they can already solve in isolation.

#mismanaged #longcot

18 replies 64 retweets 482 likes 16 shares
The Mismanaged Geniuses Hypothesis

Alex Zhang @a1zhang

The Mismanaged Geniuses Hypothesis

AI models are already good enough for the next leap in capabilities. The mismanaged geniuses hypothesis says frontier language models are severely underutilized, because each individual call is used poorly.

#mismanaged #scaffolds

9 replies 20 retweets 248 likes 7 shares
Language Models will be Scaffolds

Alex Zhang @a1zhang

Language Models will be Scaffolds

The language models we interact with in the near future will be what we call scaffolds today. Neural models are now so good that they are severely underutilized, and the line between a language model and a scaffold is blurring.

#scaffolds #language #models

17 replies 71 retweets 569 likes 31 shares
Recursive Language Models

Alex Zhang @a1zhang

Recursive Language Models

We explore language models that recursively call themselves or other LLMs before providing a final answer. The aim is essentially unbounded context, and a way through context rot.

#recursive #language #models

134 replies 372 retweets 2,750 likes 214 shares
A Meticulous Guide to Advances in Deep Learning Efficiency over the Years

Alex Zhang @a1zhang

A Meticulous Guide to Advances in Deep Learning Efficiency over the Years

A chronological guide to advances in deep learning from the perspective of efficiency — clusters, hardware, libraries, compilers, and architectural changes. Not a survey, a narrative of why the field moved the way it did.

#efficient

14 replies 88 retweets 672 likes 19 shares
The Annotated Kolmogorov-Arnold Network (KAN)

Alex Zhang @a1zhang

The Annotated Kolmogorov-Arnold Network (KAN)

An annotated guide to Kolmogorov-Arnold Networks, in the spirit of the Annotated Transformer. KANs put learned functions on the edges of a network instead of learned weights.

#annotated #kolmogorov

1 replies 10 likes 1 shares