Phi-4-mini-instruct is a lightweight, open-source language model from Microsoft, belonging to the Phi-4 model family. Trained on synthetic data and curated data from publicly available websites, it focuses on high-quality, inference-intensive data. The model supports 128K token context length and enhances instruction following capabilities and safety through supervised fine-tuning and direct preference optimization. Phi-4-mini-instruct excels in multilingual support, inference capabilities (especially mathematical and logical reasoning), and low-latency scenarios, making it suitable for resource-constrained environments. Released in February 2025, it supports multiple languages including English, Chinese, and Japanese.