---
title: "Changes to POST /openai/v1/responses"
method: POST
path: "/openai/v1/responses"
---

# Changes to POST /openai/v1/responses

`POST /openai/v1/responses`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 10 revisions.

- **2026-10-19** `59cfbdb27561`: 1 breaking, 4 info
- **2026-09-20** `152f3d51b20a`: 1 info
- **2026-09-11** `6c6ee580b219`: 2 info

## Changes

- **2026-10-19** `59cfbdb27561`: 1 breaking, 4 info
  - removed `subschema #1` from the `tools/items/` request property `anyOf` list
  - added the new optional request property `input/items/anyOf[subschema #2]/caller`
  - added `subschema #1, subschema #5` to the `tools/items/` request property `anyOf` list
  - added `subschema #1, subschema #7, subschema #8` to the `output/items/` response property `anyOf` list for the response status `200`
  - removed `subschema #1` from the `output/items/` response property `anyOf` list for the response status `200`
- **2026-09-20** `152f3d51b20a`: 1 info
  - added the new optional request property `parallel_tool_calls`
- **2026-09-11** `6c6ee580b219`: 2 info
  - added the new optional request property `service_tier`
  - added the optional property `service_tier` to the response with the `200` status

---

[Operation](https://skmtc.dev/routine/apis/routine-co/docs/openai/v1/responses/post.md) - [API](https://skmtc.dev/routine/apis/routine-co.md) - [Page](https://skmtc.dev/routine/apis/routine-co/changes/openai/v1/responses/post)