🪦 Dead

OpenAI o1-mini

Model deprecation · Model Deprecation · shut down October 27, 2025

Born: September 12, 2024
Died: October 27, 2025
Lifespan: 1y 1m
Cause of death: Model Deprecation
Killed by: OpenAI
Type: Model

A smaller, faster, cheaper version of OpenAI's o1 reasoning model designed for coding and STEM tasks. Deprecated and replaced by o4-mini, which offered better reasoning at lower cost.

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Questions about OpenAI o1-mini

Is OpenAI o1-mini dead?

Yes. OpenAI o1-mini was shut down on October 27, 2025, 1y 1m after its launch on September 12, 2024. The cause of death was model deprecation; it was killed by OpenAI. Classification: model deprecation. Details and the source are above.

OpenAI o1-mini

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