Unless they’re going to publish their data, AI can’t be meaningfully open source. The code to build and train a ML model is mostly uninteresting. The problems come in the form of data and hyperparameter selection which either intentionally or unintentionally do most of the shaping of the resulting system. When it’s published it’ll just be a Python project with some magic numbers and “put data here” with no indications of what went into data selection or choosing those parameters.