# OpenAI designates GPT 5.6 as top model for Microsoft Copilot 365 amid split rumors

OpenAI has announced that its GPT 5.6 model will be the preferred choice for Microsoft’s Copilot 365 productivity suite. This decision comes as speculation grows about a potential rift between the two companies. The move signals continued collaboration in the AI space, reassuring enterprise customers relying on integrated AI tools.

**Importance:** 3/5

## Sources

### Technology
- [TechCrunch](https://techcrunch.com/2026/07/09/openai-says-gpt-5-6-is-the-preferred-model-for-microsoft-copilot-amid-breakup-chatter/) — Fri, 10 Jul 2026 00:16:54 +0000