Microsoft Releases Phi-4: A 14B Parameter Open-Source Language Model

Microsoft has unveiled Phi-4, a new 14-billion parameter open-source language model. Built using a blend of synthetic data, filtered public domain websites, and academic books and Q&A datasets, Phi-4 boasts a rigorous enhancement and alignment process, ensuring accurate instruction following and robust safety. With a context length of 16k tokens, it's designed for general-purpose AI systems and applications (primarily English) needing memory/compute constrained environments, low latency, and strong reasoning and logic capabilities. Microsoft emphasizes that developers should consider the limitations of language models and mitigate for accuracy, safety, and fairness, especially in high-risk scenarios.