use_previous_response_id

If True, always pass previous_response_id using the ID of the most recent response. Responses API only.

Input messages up to the most recent response will be dropped from request payloads.

For example, the following two are equivalent:

model = ChatOpenAI(
    model="...",
    use_previous_response_id=True,
)
model.invoke(
    [
        HumanMessage("Hello"),
        AIMessage("Hi there!", response_metadata={"id": "resp_123"}),
        HumanMessage("How are you?"),
    ]
)

model = ChatOpenAI(model="...", use_responses_api=True)
model.invoke([HumanMessage("How are you?")], previous_response_id="resp_123")