02 Oct

More Models, One Copilot: Claude Opus 5.5 and GPT-6 Sol in Microsoft Copilot

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On September 22, 2026, Microsoft began rolling out two new frontier models in Copilot: Anthropic's Claude Opus 5.5 and OpenAI's GPT-6 Sol. They are arriving in Word, Excel, PowerPoint, Copilot Chat, Cowork, and Copilot Studio. Microsoft's reasoning: no single model is ideal for every task. But response quality depends not only on the model — it also depends on what Copilot knows about a specific company's work.
04 Aug

Copilot security: does the AI see confidential company data

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The most common question before rolling out Copilot isn't "what can it do" — it's "will it leak our trade secrets." The short answer: Copilot operates within a company's Microsoft 365 tenant and a specific user's access rights, and doesn't use corporate data to train general models.
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