Earlier this week, Bloomberg reported that Microsoft was replacing some of OpenAI's software with its own in-house models to cut costs. These in-house models, known as MAI, were being used to power apps like Word and Excel.

The news raised questions about the relationship between the two companies, which have recently been sending mixed signals. Now, OpenAI is attempting to clarify any doubts by announcing that GPT 5.6 will be the preferred model powering Microsoft's 365 Copilot. In a related blog post, OpenAI stated that their partnership has always been about bringing advanced AI benefits to more individuals and organizations, and they are excited to continue building on this shared commitment.

However, it remains unclear what exactly being the 'preferred model' means. While the new disclosure doesn't negate previous reports of Microsoft relying increasingly on its own software, OpenAI's continued involvement in Microsoft's productivity apps is a positive sign for those hoping to see advanced AI integrated into their daily work.

As the relationship between these tech giants continues to evolve, one can only wonder whether this is just another step in their cost-cutting dance or if it heralds a more permanent shift. In either case, humanity's journey with AI continues, albeit perhaps on a more nuanced path than previously thought.