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Phi-4 Reasoning

Big reasoning power, small models

Open Source
Artificial Intelligence
Development

Small open-weight models (3.8B/14B) delivering powerful reasoning for math/science/code, rivaling larger LLMs. Available on Azure AI Foundry & HF.

Top comment

Hi everyone!

I keep a close eye on Microsoft's Phi models and test them out for my own projects, because I really believe on-device AI is the next big thing.

The new Phi-4 Reasoning models (mini, reasoning, and reasoning-plus) are now out. For small models, their reasoning ability is genuinely top-tier right now.

That combination of efficiency and real reasoning power is why the Phi-4 family (maybe alongside models like Gemma) is so promising for actually getting powerful AI running locally on our devices soon.

The open-weight models are available now on Hugging Face and Azure AI Foundry.

Comment highlights

Seems like all new models are being so focused on coding, science, math which basically just means anything related to reasoning. AI improving AI

Whoa, Phi-4 is seriously impressive! The reasoning capabilities are next-level — love how it balances speed, accuracy, and efficiency. Definitely a big step forward for AI models. Excited to see how devs and product builders will integrate this into real-world applications!