Models and keys
Which model an Agent host agent uses: your own key on Pro, the built-in AI on Premium and Max, and model tiers haiku, sonnet and opus.
Pro. Add your own model key. It is sealed and never shown again. Only your provider's model is called with it, and the deployment's keys are never used for a Pro workspace.
Premium and Max. The built-in AI answers, and the deployment's keys are used. A model step costs credits by tier.
You choose the tier in the agent's setup: haiku, sonnet or opus.