open weights — A model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.
pretraining — The first, biggest phase of building a model: training it on enormous amounts of text so it learns language, facts, and reasoning in general.
Why it matters
Claims that policy quality scales with general web video, which would ease the robot-data bottleneck. An open weightsA model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.Full definition → release is promised in coming months.
