OpenAI Says GPT-5.6 Stays the 'Preferred Model' for Microsoft Copilot 365

In one line: OpenAI said its new GPT-5.6 family will keep serving as the "preferred model" behind Microsoft's Copilot 365 workplace and productivity apps.

Key points

• OpenAI confirmed the GPT-5.6 family will continue to power Microsoft's suite of workplace and productivity apps.
• The "preferred model" framing signals GPT-5.6's default status inside Copilot 365.
• The statement lands amid recent "breakup chatter" about the two companies' partnership.

Why it matters

Microsoft has reportedly been weighing its own and third-party models alongside OpenAI's. A public confirmation of GPT-5.6's default role reads as an effort to defend OpenAI's largest distribution channel.

Read more

• OpenAI says GPT 5.6 is the 'preferred model' for Microsoft Copilot 365 amid breakup chatter — TechCrunch