Phi-3 Medium (14B)

Phi-3 Medium (14B) is Microsoft’s open instruction model for substantial capability under constrained compute and latency budgets. The model card distinguishes 4K and 128K variants. The long-context 128K checkpoint uses synthetic and filtered public data followed by SFT and DPO, described as targeting code, mathematics, logic, and instruction following.

The large window distinguishes the 128K variant from the short Phi-3 configuration. The model card describes this instruction-tuned checkpoint for broad English commercial and research use.