The choice of model belongs to the client. The engine is independent of it.
The model connects with an Azure managed identity, with no API keys in the configuration. The tenant is your own dedicated part of the Microsoft cloud. Poland Central region, processing within the EU data zone. This is how the agent runs at the first client.
An Anthropic model in your Azure subscription. The aiv engine supports it.
For deployments where data may reach the model vendor on its terms.
Where nothing may leave the company.
The data that reaches the model is described in the data-flow document before the first access. The names Microsoft, Anthropic and OpenAI denote technologies in use, not partner status.