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Microsoft - Dense - verified

Run Phi-4-reasoning-plus locally

Phi-4-reasoning-plus is a 14.7B dense model from Microsoft with a 33K-token context window, released under MIT (commercial use is allowed); the smallest listed download is 9.1 GB, the Q4_K_M GGUF build from unsloth/Phi-4-reasoning-plus-GGUF.

Official weights: microsoft/Phi-4-reasoning-plus

Total params
14.7B
Architecture
Dense
Context
33K
Smallest download
9.1 GB

Fits in

Smallest download at most 85% of memory

Downloads

The official weights and every quantization listed for this model, with file sizes from Hugging Face.

Phi-4-reasoning-plus downloads and file sizes
DownloadFormatSizeRepo
Official weightsBF1629.3 GBmicrosoft/Phi-4-reasoning-plus
Q4_K_MSmallest listedGGUF9.1 GBunsloth/Phi-4-reasoning-plus-GGUF
Q8_0GGUF15.6 GBunsloth/Phi-4-reasoning-plus-GGUF
4bitMLX9.2 GBmlx-community/Phi-4-reasoning-plus-4bit

GB is decimal: 1 GB = 10^9 bytes. Add memory for the context and the operating system on top of the file size.

Run it

Copied verbatim from the page linked under each command. Server commands from model cards often assume a multi-GPU node; check the flags before you run them.

Ollama

Terminal
ollama run phi4-reasoning:plus

Source: ollama.com/library/phi4-reasoning

vLLM

Terminal
vllm serve microsoft/Phi-4-reasoning-plus --enable-reasoning --reasoning-parser deepseek_r1

Source: huggingface.co/microsoft/Phi-4-reasoning-plus

Not sure which runtime to use? Compare local LLM runtimes by platform, API and features.

License

License
MITmit
Commercial use
Commercial use: YesCommercial use is allowed.
Gated download
No. The files download directly.

Worth knowing

Reasoning fine-tune of the Phi-4 base with a 32k context, and the card's vLLM command uses the deepseek_r1 reasoning parser.

Released (per the model card).

FAQ

How big is the Phi-4-reasoning-plus download?

The official BF16 weights in microsoft/Phi-4-reasoning-plus are 29.3 GB. The smallest listed download is 9.1 GB, the Q4_K_M GGUF build from unsloth/Phi-4-reasoning-plus-GGUF. Plan for more memory than the file size: the context (KV cache) and the operating system need room too.

Can I use Phi-4-reasoning-plus commercially?

Phi-4-reasoning-plus is released under MIT, and commercial use is allowed. The license text is at https://huggingface.co/microsoft/Phi-4-reasoning-plus/blob/main/LICENSE.

How much memory do I need for Phi-4-reasoning-plus?

By this directory's rule of thumb it fits in 16 GB and up: the smallest listed download, 9.1 GB, is at most 85% of 16 GB, which leaves room for the context and the operating system.

How do I run Phi-4-reasoning-plus with Ollama?

Run "ollama run phi4-reasoning:plus", as shown at https://ollama.com/library/phi4-reasoning. The Ollama library lists the phi4-reasoning:plus tag at 11GB.

What is the context length of Phi-4-reasoning-plus?

32,768 tokens. A longer context needs more memory for the KV cache, so you can run with a shorter one when memory is tight.

Sources

Last verified from the pages below.

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