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

GPT-5.6 成为 Microsoft 365 Copilot 首选模型

OpenAI announced GPT-5.6 as the new preferred model for Microsoft 365 Copilot, covering Word, Excel, PowerPoint, Chat, and Cowork. The model promises more useful work per token: fewer prompt rounds in Word, more token-efficient analysis in Excel, and faster idea-to-slide conversion in PowerPoint. Both Microsoft's Copilot president Nitin Agrawal and OpenAI's API product head Nikunj Handa endorsed the move. The post does not disclose a rollout date, pricing changes, or benchmark comparisons—treat this as a partnership announcement rather than a product review for now.

Why it matters: GPT-5.6 becomes the default model across Microsoft 365 Copilot — Word, Excel, PowerPoint, Chat, and Cowork. First major enterprise deployment after the model's release. Hits all three HKR axes: concrete efficiency claims, real deployment context, strong audience resonance. Hel...