AWS adds P5.4xl support to SageMaker Notebook Instances

This gives SageMaker Notebook users access to a larger instance class for machine learning work, extending the compute options available inside AWS’s managed notebook environment. In practical terms, the update is about capacity inside SageMaker rather than a new workflow or service. For the broader streaming-video AI stack, it adds another AWS option for teams running ML workloads tied to video applications. The concrete signal to watch is whether AWS follows this notebook update with similar instance support across other SageMaker components.