# OpenAI — Addendum to OpenAI o3 and o4-mini system card: OpenAI o3 Operator

- Company: OpenAI (openai.com)
- Announced: 2025-05-23T00:00:00+00:00
- Category: model-update
- Subject: GPT / ChatGPT / API
- Models affected: GPT-4o, OpenAI o3
- Source: https://openai.com/index/o3-o4-mini-system-card-addendum-operator-o3
- Record: https://forck.live/items/555-addendum-to-openai-o3-and-o4-mini-system-card-openai-o3-operator

OpenAI is replacing the GPT-4o based model for Operator with a version based on o3, while the API version remains based on 4o.

## Evidence

Verbatim from https://openai.com/index/o3-o4-mini-system-card-addendum-operator-o3:

> We are replacing the existing GPT-4o-based model for Operator with a version based on OpenAI o3. The API version will remain based on 4o.

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Record: https://forck.live/items/555-addendum-to-openai-o3-and-o4-mini-system-card-openai-o3-operator
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