# OpenAI Python SDK changelog

> The official Python library for the OpenAI API.

- Vendor: OpenAI
- Category: AI
- Official site: https://github.com/openai/openai-python
- Tracked by: What's New (https://whatsnew.fyi/product/openai-python)
- Harvested from: GitHub (openai/openai-python)
- Entries below: 10 (newest first)

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

## Releases

### v2.53.0

- Date: 2026-08-03
- Version: v2.53.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.53.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.53.0

- **added** — Add gpt-5.5 and tool name/namespace to Responses types
- **fixed** — Avoid NumPy source builds and duplicate HTTPX coverage in CI

##### [2.53.0](https://github.com/openai/openai-python/compare/v2.52.1...v2.53.0) (2026-08-03)


###### Features

* **api:** Add gpt-5.5 and tool name/namespace to Responses types ([#3569](https://github.com/openai/openai-python/issues/3569)) ([dd1202d](https://github.com/openai/openai-python/commit/dd1202d5dacff985861289c1d9c46996ded2d2a5))


###### Bug Fixes

* **ci:** avoid NumPy source builds and duplicate HTTPX coverage ([#3573](https://github.com/openai/openai-python/issues/3573)) ([b58332f](https://github.com/openai/openai-python/commit/b58332f8a0717f7b1effb1788a594011cee6e02f))

### v2.52.1

- Date: 2026-08-03
- Version: v2.52.1
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.52.1
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.52.1

##### 2.52.1 (2026-07-31)

Full Changelog: [v2.52.0...v2.52.1](https://github.com/openai/openai-python/compare/v2.52.0...v2.52.1)

###### Chores

* **ci:** pin setup-uv v5 to its underlying commit ([#3560](https://github.com/openai/openai-python/issues/3560)) ([cbdc98b](https://github.com/openai/openai-python/commit/cbdc98b6c1e21df7ee43d13b5de7243c6ed1ee7f))

### v2.52.0

- Date: 2026-07-31
- Version: v2.52.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.52.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.52.0

- **added** — Add content provenance checks to the API
- **fixed** — Honor Retry-After delays up to two minutes in the client

##### 2.52.0 (2026-07-31)

Full Changelog: [v2.51.0...v2.52.0](https://github.com/openai/openai-python/compare/v2.51.0...v2.52.0)

###### Features

* **api:** content provenance checks ([1d6c118](https://github.com/openai/openai-python/commit/1d6c1180f8eaa71bfd45cae67360987b2bea3656))


###### Bug Fixes

* **client:** honor Retry-After delays up to two minutes ([#3555](https://github.com/openai/openai-python/issues/3555)) ([7fa7946](https://github.com/openai/openai-python/commit/7fa7946485b5ecbadd0ebf8624c574e2c9e3370c))


###### Documentation

* add API-key mTLS HTTP client recipes ([#3552](https://github.com/openai/openai-python/issues/3552)) ([7a3d5e4](https://github.com/openai/openai-python/commit/7a3d5e46b61cb36109dc4e7fd6d4ab70cc6d6c0f))

### v2.51.0

- Date: 2026-07-30
- Version: v2.51.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.51.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.51.0

- **added** — Add support for fast tier
- **fixed** — Add fast tier to helper methods

##### 2.51.0 (2026-07-30)

Full Changelog: [v2.50.0...v2.51.0](https://github.com/openai/openai-python/compare/v2.50.0...v2.51.0)

###### Features

* **api:** fast tier ([8808ed2](https://github.com/openai/openai-python/commit/8808ed27952dae13fb8761f045376af5b3e5bec2))


###### Bug Fixes

* **api:** add fast tier to helper methods ([6064126](https://github.com/openai/openai-python/commit/60641266ff4b296044a81fe1717c17a70ceadbf1))

### v2.50.0

- Date: 2026-07-28
- Version: v2.50.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.50.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.50.0

- **added** — Add support for transcription model updates
- **fixed** — Restore transcription keyword overload in audio module

##### 2.50.0 (2026-07-28)

Full Changelog: [v2.49.0...v2.50.0](https://github.com/openai/openai-python/compare/v2.49.0...v2.50.0)

###### Features

* **api:** transcription model updates ([fd57393](https://github.com/openai/openai-python/commit/fd57393389eac75af08c2e887cb188590448be20))


###### Bug Fixes

* **audio:** restore transcription keyword overload ([713a262](https://github.com/openai/openai-python/commit/713a2624966c40f4e5b0c20436b8a79aa8383b08))

### v2.49.0

- Date: 2026-07-27
- Version: v2.49.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.49.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.49.0

- **changed** — Require Python 3.10 as minimum version

##### 2.49.0 (2026-07-27)

Full Changelog: [v2.48.0...v2.49.0](https://github.com/openai/openai-python/compare/v2.48.0...v2.49.0)

###### Features

* require Python 3.10 and automate version reviews ([#3537](https://github.com/openai/openai-python/issues/3537)) ([d4c151d](https://github.com/openai/openai-python/commit/d4c151d92ba713e56518a4483d3b7918dd1be838))

### v2.48.0

- Date: 2026-07-23
- Version: v2.48.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.48.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.48.0

- **added** — Add support for spend_limit admin APIs
- **changed** — Accept None for prompt_cache_key and safety_identifier parameters

##### 2.48.0 (2026-07-23)

Full Changelog: [v2.47.0...v2.48.0](https://github.com/openai/openai-python/compare/v2.47.0...v2.48.0)

###### Features

* **api:** accept `None` for prompt_cache_key/safety_identifier ([36820e6](https://github.com/openai/openai-python/commit/36820e69ba6cf1dc3f8d411e48a36e56084fbbc4))
* **api:** add support for `spend_limit` admin apis ([1ff13af](https://github.com/openai/openai-python/commit/1ff13afb6e831394036686a1c352bbec6d704c68))

### v2.47.0

- Date: 2026-07-22
- Version: v2.47.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.47.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.47.0

- **added** — Add experimental runtime support for HTTPX2 clients
- **fixed** — Require patched aiohttp on Python 3.10+

##### 2.47.0 (2026-07-21)

Full Changelog: [v2.46.0...v2.47.0](https://github.com/openai/openai-python/compare/v2.46.0...v2.47.0)

###### Features

* **client:** Add experimental runtime support for HTTPX2 clients ([#3524](https://github.com/openai/openai-python/issues/3524)) ([317260c](https://github.com/openai/openai-python/commit/317260cd16395b2338bcdaacd7daa0b179c90105))
* **stlc:** configurable CI runner and private-production-repo support in workflow templates ([4303e97](https://github.com/openai/openai-python/commit/4303e974f08394789c6075b6745357b2f1c36e21))


###### Bug Fixes

* **deps:** require patched aiohttp on Python 3.10+ ([#3515](https://github.com/openai/openai-python/issues/3515)) ([d4dceb2](https://github.com/openai/openai-python/commit/d4dceb221b9a92c55c232d5b330ae89beb539415))

### v2.46.0

- Date: 2026-07-17
- Version: v2.46.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.46.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.46.0

- **added** — Add /organization/projects/{project_id}/service_accounts/{service_account_id}/api_keys endpoint
- **added** — Add owner_project_access to APIKeyListParams
- **fixed** — Preserve generated type compatibility
- **changed** — Remove beta annotation compatibility aliases

##### 2.46.0 (2026-07-17)

Full Changelog: [v2.45.0...v2.46.0](https://github.com/openai/openai-python/compare/v2.45.0...v2.46.0)

###### Features

* **api:** /organization/projects/{project_id}/service_accounts/{service_account_id}/api_keys" endpoint ([5a00941](https://github.com/openai/openai-python/commit/5a0094194eac9c605c8ca84d47d1c5518f8e2131))
* **api:** add owner_project_access to APIKeyListParams ([f589d04](https://github.com/openai/openai-python/commit/f589d04bf9f377ecb1f54335ab3ab9d825b5dfee))
* **api:** manual updates ([980f176](https://github.com/openai/openai-python/commit/980f176e83ee5d991bf9e8e4def80d9905ade5ec))
* **api:** manual updates ([2eae984](https://github.com/openai/openai-python/commit/2eae984315580cdbf9ceb14d6cb568c581baa768))


###### Bug Fixes

* **api:** preserve generated type compatibility ([00bd72a](https://github.com/openai/openai-python/commit/00bd72adbe03f4b5c4b89d91b8d317f11b58bbdf))
* **api:** remove beta annotation compatibility aliases ([99dbd15](https://github.com/openai/openai-python/commit/99dbd15ff3ad1628b94a729a6b688212d4655908))

### v2.45.0

- Date: 2026-07-09
- Version: v2.45.0
- Original notes: https://github.com/openai/openai-python/releases/tag/v2.45.0
- Permalink: https://whatsnew.fyi/product/openai-python/releases/v2.45.0

- **added** — Add gpt-5.6-sol model updates
- **fixed** — Restore beta resource accessors

##### 2.45.0 (2026-07-09)

Full Changelog: [v2.44.0...v2.45.0](https://github.com/openai/openai-python/compare/v2.44.0...v2.45.0)

###### Features

* **api:** gpt-5.6-sol updates ([039d1fe](https://github.com/openai/openai-python/commit/039d1feb264a2dca7195ba5028e9fb47a5e04987))


###### Bug Fixes

* **api:** restore beta resource accessors ([2dfc130](https://github.com/openai/openai-python/commit/2dfc130b8f0fdb0049e075aac21aaef29482b4e3))


###### Chores

* retrigger release automation ([7b61351](https://github.com/openai/openai-python/commit/7b61351b014bb6ca4623ff6cce7f32f45038a92e))