Typed decision, agents and sub-agents: do not confuse everything
DevDay opens several levels of abstraction: a finite response, a managed agent loop, and delegation to sub-agents. The right level depends on the task.
Preview limited / beta
Facts, analysis and limits
Verified facts
- Decisions API focuses Luna on finite-answer questions supplied by the developer, from text or images; the recap describes it as a limited preview.
- Agents API gains computer use in a hosted browser. The changelog separately identifies GPT-6.1 Sol's multi-agent beta in Responses.
- These new features are distinct interfaces and orchestration capabilities, not three new models to compare in the same table.
What changes
To rank, prefer a structured output and a test set. For a long workflow, evaluate recovery, status and permissions. Add sub-agents only if parallelism brings a measurable value.
Practical implication
Watch Decisions availability; test the three components separately.
Availability
Decisions: limited preview; multi-agent: beta. Access and conditions of the hosted browser to check in the API.
Limits and uncertainty
No quality or cost measurements of these APIs were performed in this pilot.