The boundary changes the decision
A model endpoint can produce an answer. A usable business application must also obtain the right context, respect permissions, meet a quality threshold and leave an understandable record of what happened. Comparing only models omits much of the work a team must deliver.
What the official sources show
Microsoft’s current Foundry pages connect model services with agent development and operations. Google’s April 2026 platform announcement brings model and agent work into a shared lifecycle. AWS presents Bedrock, SageMaker and AgentCore as complementary capabilities across applications, data and agent operation. These are vendor descriptions, not independent comparative tests.
A useful next step
Write a capability map for one application. Name the owner and dependency for data, model selection, tool access, evaluation, release and operations. Then identify the unowned layer. That exercise is more actionable than an undifferentiated platform feature checklist.