A curated collection of open-source software tools for nuclear science and engineering, including Monte Carlo transport codes, reactor simulators, nuclear data processing utilities, and multiphysics frameworks used for neutron/photon transport, fuel cycle analysis, and reactor design.
Researchers released an open-source frontier-level world model trained on the Dreamer4 paper using the CoinRun game, featuring a block-causal transformer architecture with a tokenizer and dynamics model. The project demonstrates scaling laws where compute-optimal parameters and data points scale with the square root of compute, and combines world prediction with policy learning through diffusion-based latent state generation.