---
title: "Changes to Get a model response"
method: GET
path: "/responses/{response_id}?beta=true"
---

# Changes to Get a model response

`GET /responses/{response_id}?beta=true`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 4 of 31 revisions.

- **2026-07-30** `26e845904dd2` — 1 warning
- **2026-07-23** `0514a733c82d` — 3 breaking, 1 warning
- **2026-07-17** `241fb501b372` — 1 breaking, 1 info
- **2026-07-09** `e0508a503b84` — 1 info

## Changes

- **2026-07-30** `26e845904dd2` — 1 warning
  - added the new `fast` enum value to the `allOf[#/components/schemas/BetaModelResponseProperties]/service_tier/anyOf[subschema #1]/` response property for the response status `200`
- **2026-07-23** `0514a733c82d` — 3 breaking, 1 warning
  - response property `allOf[#/components/schemas/BetaModelResponseProperties]/prompt_cache_key` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
  - response property `allOf[#/components/schemas/BetaModelResponseProperties]/safety_identifier` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
  - the `allOf[#/components/schemas/BetaModelResponseProperties]/safety_identifier` response property's maxLength was unset from `64` for the response status `200`
  - added the new `data_residency_mismatch` enum value to the `allOf[subschema #3]/error/anyOf[subschema #1]/code` response property for the response status `200`
- **2026-07-17** `241fb501b372` — 1 breaking, 1 info
  - the `allOf[subschema #3]/instructions/anyOf[subschema #1]/anyOf[subschema #2: Input item list]/items/anyOf[subschema #2: Item]/anyOf[#/components/schemas/BetaMultiAgentCallOutputItemParam]/output/items/annotations` response's property type/format changed from ``/`` to `array`/`` for status `200`
  - removed `subschema #1, subschema #2, subschema #3` from the `allOf[subschema #3]/instructions/anyOf[subschema #1]/anyOf[subschema #2: Input item list]/items/anyOf[subschema #2: Item]/anyOf[#/components/schemas/BetaMultiAgentCallOutputItemParam]/output/items/annotations` response property `anyOf` list for the response status `200`
- **2026-07-09** `e0508a503b84` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/openai/apis/openai-api/docs/responses/:response_id?beta=true/get.md) · [API](https://skmtc.dev/openai/apis/openai-api.md) · [Page](https://skmtc.dev/openai/apis/openai-api/changes/responses/:response_id?beta=true/get)