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OpenAI Stays Microsoft's 'Preferred Model' After Cost-Cut Worry

TechCrunch AI · Jul 10, 2026 · 1 min read · Read original article →

Curated by the Inblix editorial team


Bloomberg recently reported that Microsoft was swapping some OpenAI software for its own in-house MAI models in Word and Excel to save cash, sparking breakup rumors between the two frenemies. But OpenAI just fired back with a commitment: its new GPT 5.6 will be the “preferred model” powering Microsoft 365 Copilot across Word, Excel, PowerPoint, and Cowork. The language is vague—it doesn’t nix those cost-cutting moves—but the message is clear: OpenAI isn’t getting booted from the house. This drama highlights a delicate dance: Microsoft wants cheaper AI, but still relies on OpenAI’s top-tier tech. Why it matters: This power shift shows even tight tech partnerships get messy when money talks, but branding still matters more than back-end changes for keeping users loyal.

💡 Key Takeaways

  1. OpenAI announced GPT 5.6 will be Microsoft's 'preferred model' for 365 Copilot, pushing back against breakup rumors.
  2. Bloomberg reported Microsoft had been replacing OpenAI models with cheaper in-house MAI software in apps like Word and Excel.
  3. The 'preferred model' label doesn't contradict previous reports of Microsoft's cost-cutting, but signals a continued partnership.

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