Only GPT-6-Astra discovers altered physical laws, at 16.7%; 11 other models score 0%
LongChang builds simulated worlds where a physical law is changed, such as heavier objects falling more slowly, and lets an LLM explore with no hints about what to investigate. Separate LLM agents generate scenes and check reports against the altered laws. Among 12 LLMs, GPT-6-Astra achieved a discovery rate of 16.7% and the other 11 scored 0%. Exploration records show anomalies left uninvestigated.