Microsoft’s most capable new Phi 4 AI model rivals the performance of far larger systems

Microsoft launched several new “open” AI models on Wednesday, the most capable of which is competitive with OpenAI’s o3-mini on at least one benchmark. All of the new pemissively licensed models — Phi 4 mini reasoning, Phi 4 reasoning, and Phi 4 reasoning plus — are “reasoning” models, meaning they’re able to spend more time […]