Implementation:Openai Openai python Response Compaction Item Param

Knowledge Sources	Openai_Openai_python OpenAI API Reference
Domains	API_Types, Responses_API
Last Updated	2026-02-15 00:00 GMT

Overview

Concrete parameter type for supplying a compaction item as input to the Responses API, provided by the openai-python SDK.

Description

ResponseCompactionItemParam is a Pydantic model used to pass a compaction item (generated by the v1/responses/compact API) back into a subsequent Responses API request. It contains the encrypted_content of the compaction summary, a fixed type of "compaction", and an optional id field. This type is auto-generated from the OpenAI OpenAPI specification by Stainless.

Usage

Import ResponseCompactionItemParam when constructing input items for a Responses API request that should include previously compacted conversation data.

Code Reference

Source Location

• Repository: openai-python
• File: src/openai/types/responses/response_compaction_item_param.py

Signature

class ResponseCompactionItemParam(BaseModel):
    """A compaction item generated by the v1/responses/compact API."""

    encrypted_content: str
    type: Literal["compaction"]
    id: Optional[str] = None

Import

from openai.types.responses import ResponseCompactionItemParam

I/O Contract

Fields

Name	Type	Required	Description
encrypted_content	str	Yes	The encrypted content of the compaction summary.
type	Literal["compaction"]	Yes	The type of the item. Always "compaction".
id	Optional[str]	No	The ID of the compaction item.

Usage Examples

from openai.types.responses import ResponseCompactionItemParam

# Pass a compacted summary back into a new request
compaction_input = ResponseCompactionItemParam(
    encrypted_content="encrypted_abc123...",
    type="compaction",
)

response = client.responses.create(
    model="gpt-4o",
    input=[compaction_input],
)

Related Pages

• Environment:Openai_Openai_python_Python_3_9_Plus