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A new week, a new AI model. Joining the rush is Microsoft, launching 3 new models under the “Phi-4” range. These include Phi-4 reasoning, Phi-4-reasoning plus, and Phi-4-mini reasoning. Apart from showing their commitment to the weird naming schemes found in the AI world,

Microsoft has expanded its Phi AI model family with the release of two new models, Phi-4-reasoning and Phi-4-reasoning-plus.

The smallest of the models, Phi-4-mini-reasoning, is designed to be loaded onto mobile and small-footprint devices. It is only a 3.8-billion parameter open-weight model and was optimized for mathematical reasoning with an eye for educational applications.

Microsoft has launched Phi 4 reasoning AI models, trained on 14B and 3.8B parameters, and they rival larger models like DeepSeek R1.

Microsoft has released Phi-4-reasoning, Phi-4-reasoning-plus (14B), and Phi-4-mini-reasoning (3.8B) AI models, showing strong reasoning performance.