Asynchronous execution allows you to track long-running responses without keeping a connection open. View states, recovery, retention, and operational controls.
Direct answer
The Responses API's background mode allows you to start asynchronous tasks with background=true and query the response object while it remains queued or in_progress. The client connection can drop without interrupting processing, but the architecture needs to handle terminal states, timeout, cancellation, idempotence and temporary retention. For businesses, the feature is suitable for research, analysis and extensive generation that do not require an immediate response.
Asynchronous does not mean invisible
Each execution needs an identifier, status, deadline and person responsible. The application must show that work continues and when it has finished.
Terminal states guide recovery
queued and in_progress request a new query; final states must end polling, record results and trigger fallback when necessary.
Idempotence avoids duplicate work
Customer retries should not initiate two identical analyses. Use a business key and reconcile the already created response.
Retention enters the privacy design
The documentation describes temporary storage required for asynchronous execution; Sensitive data requires minimization and policy evaluation.
Nexus Reading
Model background mode as a governed queue, with SLA, cancellation, audit, notification and cost per completed task.
FAQ
Does the connection need to be open?
No. The task continues in the background and can be queried by the response identifier.
What states require polling?
queued and in_progress; upon exiting them, execution has reached a terminal state.
When to use?
In time-consuming tasks that tolerate later response, such as research, synthesis, and extensive analysis.
Essential guides to delve deeper into the decision
This editorial analysis was produced by Nexus from the official sources below, consulted on October 31, 2026. The text is original and interprets practical implications for companies.
- OpenAI Developers — Background mode: asynchronous execution, polling, states, resumable streaming, and retention handling.
- OpenAI Developers — Responses API: response model, status and continuity of executions.
Date reported by main source: official documentation consulted on October 31, 2026; technical analysis.