# OpenAI — GPT-5.6 is now the preferred model in Microsoft 365 Copilot

- Company: OpenAI (openai.com)
- Announced: 2026-07-09T13:00:00+00:00
- Category: model-update
- Subject: GPT / ChatGPT / API
- Models affected: GPT-5.6
- Source: https://openai.com/index/gpt-5-6-preferred-model-microsoft-365-copilot
- Record: https://forck.live/items/35-gpt-5-6-is-now-the-preferred-model-in-microsoft-365-copilot

GPT-5.6 is now the preferred model powering Microsoft 365 Copilot, providing stronger AI capabilities across Office applications and chat for improved work quality and speed.

## Evidence

Verbatim from https://openai.com/index/gpt-5-6-preferred-model-microsoft-365-copilot:

> Learn how GPT-5.6 powers Microsoft 365 Copilot with stronger AI capabilities across Word, Excel, PowerPoint, Chat, and Cowork for faster, higher-quality work.

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