OpenAI names GPT‑5.6 as preferred model for Microsoft Copilot amid breakup rumors

OpenAI announced that its GPT‑5.6 model will serve as the preferred engine for Microsoft Copilot. The designation comes as speculation grows about a possible split between the two firms. Microsoft Copilot is a suite of AI‑assisted tools integrated across the company's products. GPT‑5.6 is positioned to enhance Copilot’s capabilities with the latest language model improvements. The announcement underscores OpenAI’s continued partnership with Microsoft despite rumors. Industry observers note that the preferred‑model label may influence future product roadmaps. The accompanying illustration shows the Copilot logo alongside a person using a notebook. Stakeholders will watch for any further statements that clarify the partnership’s direction.