Today, Microsoft announced Phi 4 reasoning, a 14B parameter small reasoning model that is said to deliver strong performance on complex reasoning tasks. Microsoft trained this new model via supervised fine tuning of Phi 4 on a curated set of teachable prompts generated using o3 mini. Microsoft also introduced Phi 4 reasoning plus, a 14B parameter variant of Phi 4 reasoning that delivers even better performance by generating longer reasoning traces. According to Microsoft whitepaper, these new...
