Microsoft Phi Models

Small model series for efficient local inference and edge scenarios.

Latest: Phi‑4-reasoning-plus

Phi‑4-reasoning-plus is a small (14B) open-weight reasoning model trained on curated reasoning traces, competitive with much larger models on math and PhD-level science benchmarks — available on Azure AI Foundry and Hugging Face.

Strengths

  • Small models
  • Efficient inference
  • Edge deployment

Best For

  • On‑device assistants
  • Local tools
  • Resource‑constrained workloads

Quick Tips

  • Use quantized variants for mobile and edge devices.
  • Stream responses to improve perceived latency.
  • Pair with lightweight RAG for grounded outputs.