input array when you need precise control over exactly what context is sent, for example to summarize, redact, reorder, or omit earlier turns before the follow-up. See Replay conversation turns yourself for the pattern and code examples.
Storage-backed continuity
For most multi-turn conversations, useprevious_response_id to continue from a completed prior response without resending the conversation yourself. See Conversation state for the full guide.
Next steps
Image Attachments
Attach images to a request.
Output Control
Control streaming, background runs, error handling, and structured output.