Cyberax AI Playbook
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Model · Microsoft · Text

Phi-4

Microsoft's small model trained heavily on synthetic data. Punches above its 14B weight on reasoning and math; MIT-licensed and runs locally.

Modality
Text
License
MIT (Open)
Parameter size
14B
Context window
16,384 tokens
Released
December 12, 2024
Last verified
October 28, 2026
Runs locally
Yes

What you need to run it

Mac
Yes. Any Apple Silicon Mac (M1 or newer) with at least 16 GB (24 GB recommended) of memory. Newer chips are faster, but memory is what decides whether it runs.
Windows / Linux PC
NVIDIA works best. A graphics card with at least 12 GB (16 GB recommended) of video memory.
No graphics card
Not practical. Too slow without a graphics card or Apple Silicon.

Runs on a 16 GB Mac in Ollama, LM Studio or MLX; it only handles a short context (about 16K tokens), so memory use stays low.

Numbers are for: 4-bit build of the 14B (about 9 GB). Our estimate from the model’s size — the maker publishes no figure.

Strengths

  • MIT license — fully open
  • Strong reasoning and math for a 14B model
  • Runs on a single 24GB GPU

Weaknesses

  • 16k context is small
  • Less general-purpose than larger open models

Try it

WhereTypeNotes
Hugging Face weights MIT
Ollama local ollama run phi4

Change log

  • — Added hardware requirements (Mac support, memory, NVIDIA). Source: estimate from size; Ollama phi4 page (9.1 GB); mlx-community/phi-4-4bit.
  • — Not deprecated: Microsoft has released no Phi-5, only Phi-4 variants (reasoning, mini, multimodal, and Phi-4-reasoning-vision-15B in January 2026). For local use it is now outclassed by Gemma 4 E4B / 12B and Qwen3.5 9B, which offer 128K-262K context against Phi-4's 16K, plus image input.
  • — Verified current against the model card — 14B, 16K context, MIT, no deprecation notice. Phi-5 does not exist.
  • — Initial entry.