MirroS launches Code-as-World framework for turning video into executable physics simulations

Techub News said AI research group MirroS has released Code-as-World, a framework that treats the physical world as an executable representation. The system turns video scenes into code that can run in the MuJoCo physics engine. MirroS describes the output as a trio made up of object composition, physical evolution, and visual appearance, aimed at representing physical mechanisms more precisely. The framework uses an agent loop that goes through hypothesis, instantiation, execution, rendering, and verification. According to the release, it can recover executable programs from real video material in as many as five iterations. MirroS said the verified world programs can be used as training data with precise physics labels for vision-language models. On that basis, the supervised Code-as-World-VL-9B model scored 55.4 MRA on the QuantiPhy validation set, above Gemini 3.1 Flash at 54.8. The company also said the related code repository and model checkpoints are now open sourced on GitHub.