Microsoft logs $3.2B from Anthropic investment, but OpenAI was a mixed bag

Microsoft reported $3.2 billion in unrealized gains from its investment in Anthropic during its fiscal 2026 fourth quarter. While the company saw significant revenue growth fueled by its cloud and artificial intelligence infrastructure, its financial relationship with OpenAI yielded more varied results. These figures highlight the massive capital Microsoft has committed to the AI sector and demonstrate how the performance of its primary laboratory partners is beginning to influence its overall financial standing.