ByteSized32: A Corpus and Challenge Task for Generating Task-Specific World Models Expressed as Text Games

Abstract

In this work we investigate the capacity of language models to generate explicit, interpretable, and interactive world models of scientific and common-sense reasoning tasks. We operationalize this as a task of generating text games, expressed as hundreds of lines of PYTHON code. To facilitate this task, we introduce BYTESIZED32 1 , a corpus of 32 reasoning-focused text games totalling 20k lines of PYTHON code. We empirically demonstrate that GPT-4 can use these games as templates for single-shot in-context learning, successfully producing runnable games on unseen topics in 28% of cases. When allowed to selfreflect on program errors, game runnability substantially increases to 57%. While evaluating simulation fidelity is labor intensive, we introduce a suite of automated metrics to assess game fidelity, technical validity, adherence to task specifications, and winnability, showing a high-degree of agreement with expert human ratings. We pose this as a challenge task to spur further development at the juncture of world modeling and code generation.