How to Change the Default LLM Model at the Instance Level in Oracle Fusion AI Agent Studio?

Hello Experts,

We are evaluating Oracle Fusion AI Agent Studio and would like to understand whether there is a mechanism to centrally change the LLM model across the entire instance.

Our requirement is not limited to setting a default model for newly created agents. We are looking for a solution that would allow us to:

• Change the LLM model once at the tenant/instance level.
• Automatically apply the new default model to all existing AI agents.
• Ensure all future agents also use the same model by default.
• Avoid manually updating each agent, workflow, node, or agent team individually.

For example, if we decide to move from one model to another (such as an Oracle-provided model, OCI-hosted model, or BYO LLM), we would like the change to be propagated consistently across the environment.