AI scientists who see limits in large language model research are moving to develop \"world models\" that understand and respond to physical environments, AP reported on June 25. Such models aim to teach AI the statistical structure of space and time, including how light falls on surfaces and how objects respond to force. Researchers say language models cannot handle complex physical interactions, while others focus on building interactive game worlds.

A debate is growing after the U.S. government recently barred foreigners from using Anthropic’s latest AI models, Mythos and Fable. An analysis reported by the Financial Times found Anthropic stressed AI risks, regulation and safety far more frequently than rival OpenAI. Critics say the messaging may have provided justification for the ban, which was reported to cite national security and cyber risks. The dispute comes amid escalating friction between Washington and Anthropic.