# OpenAI o4-mini

id: ent_openai-o4-mini  
kind: product  
timeline: /timelines/openai-o4-mini.md  
page: /record/openai-o4-mini  
same_as: https://asof.is/record/openai-o4-mini (how to cite the id: /identifiers.md)  

small, fast o-series reasoning model

## Fact pages

One page per fact: the current value with its sources, then every dated value and what replaced what. Fetch any of them as markdown.

- [OpenAI o4-mini release date](/record/openai-o4-mini/model_release.md)
- [OpenAI o4-mini deprecation](/record/openai-o4-mini/deprecated.md)
- [OpenAI o4-mini retirement](/record/openai-o4-mini/retired.md)

## All claims

One claim per line, newest first. Superseded claims stay visible.

- [OpenAI o4-mini](/record/openai-o4-mini.md) | retired | o4-mini | valid 2026-10-23 to present | conf 0.95 | valid | [clm_E1C5929C5AD6](/claim/clm_E1C5929C5AD6.md)
  sources: https://platform.openai.com/docs/deprecations
- [OpenAI o4-mini](/record/openai-o4-mini.md) | deprecated | o4-mini | valid 2026-04-22 to present | conf 0.95 | valid | [clm_522C66B748E1](/claim/clm_522C66B748E1.md)
  sources: https://platform.openai.com/docs/deprecations

## Posts and Hugging Face repos (1)

Dated items from the entity's own feeds, and the days its Hugging Face repositories were created, newest first.

- [OpenAI o4-mini](/record/openai-o4-mini.md) | model_release | o4-mini | valid 2025-04-16 to present | conf 0.95 | valid | [clm_C1B0F47C0897](/claim/clm_C1B0F47C0897.md)
  sources: https://developers.openai.com/api/docs/changelog#2025-04-16

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.