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

9 July 2026·1 min read
Read original on OpenAI

Source: OpenAI

What was announced

OpenAI announced that GPT-5.6 is now the preferred model in Microsoft 365 Copilot, enhancing AI capabilities across Word, Excel, PowerPoint, Chat, and Cowork for faster and higher-quality work.

Why it matters

Developers using AI tools in Microsoft 365 Copilot can now leverage the improved capabilities of GPT-5.6, leading to more efficient and accurate workflows. This update compares favorably to previous models, offering better performance and integration. Developers should update their integrations and test the new capabilities to ensure optimal performance.

Key takeaways

  • GPT-5.6 offers 50% faster response times compared to previous models.
  • Developers can expect improved accuracy and efficiency in AI-assisted tasks within Microsoft 365 Copilot.
  • Immediate action: Update integrations and test the new capabilities to ensure optimal performance.
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