The commercial significance of a foundation model is that it is a substrate, not a product. Everything useful gets built on top: adapters, skills, tool access, retrieval, and the guard rails a client will actually sign off.
For a studio the practical consequence is churn. Models are replaced faster than pipelines are, so anything valuable belongs in the pipeline (the plates, the identity sheets, the gates, the ledger) and not in a particular model’s quirks.
Which AI model is best for video?
The question ages badly. Build the pipeline so the generation stage is swappable, then choose per project on licence terms, motion quality and how the model handles the specific failure your subject invites.