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URL: https://willitrunai.com/can-run/phi-4-reasoning-plus-14b-on-m4-max-64gb

⇱ Phi-4-reasoning-plus 14B on MacBook Pro M4 Max 64GB? YES

Can Phi-4-reasoning-plus 14B run on MacBook Pro M4 Max 64GB?

YES — Runs Great

S88Excellent
○Estimated from fit model

Phi-4-reasoning-plus 14B needs ~19.8 GB VRAM. MacBook Pro M4 Max 64GB has 46.1 GB. With Q4_K_M quantization, expect ~38 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: MediumStack: StandardBottleneck: Balanced
Share:

Operating mode

Choose the run profile you care about

Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.

Current mode

Balanced

Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 19.8 GB, 37.6 tok/s, Runs well
19.8 GB required46.1 GB available
43% VRAM used

Fit status

Runs well

Decode

37.6 tok/s

TTFT

5155 ms

Safe context

33K

Memory

19.8 GB / 46.1 GB

Memory breakdown

Weights9.0 GB
KV Cache3.1 GB
Runtime0.9 GB
Headroom6.9 GB

See how fast it feels

See how fast it feelsPhi-4-reasoning-plus 14B on MacBook Pro M4 Max 64GB
1st promptCold start — includes initialization
>Solve: If a train travels at 60 mph for 2.5 hours, how far does it go?
Let me work through this step by step. Given information: - Speed = 60 mph (miles per hour) - Time = 2.5 hours Formula: Distance = Speed x Time Calculation: Distance = 60 mph x 2.5 h = 150 miles The train travels 150 miles. Double-check: at 60 mph the train covers 60 miles each hour. In half an hour it covers 30 miles. So in 2.5 hours: 60 + 60 + 30 = 150 miles. Confirmed.
2nd promptWarm — model ready, no init overhead
>What if the train stops for 20 minutes halfway?
The stop doesn't change the total distance covered while moving, but it affects total trip time. Breakdown: - First half: 1.25 hours at 60 mph = 75 miles - Stop: 20 minutes (no distance) - Second half: 1.25 hours at 60 mph = 75 miles Total distance: 150 miles (same) Total time: 2.5 h + 0.33 h = 2.83 hours Average speed: 150 / 2.83 = 53 mph The distance stays the same but average speed drops to 53 mph because of the stop.
Estimated: 37.6 tok/s decode · 5.2s TTFT (warm) · 94 tok/s prefill

What limits this setup

This setup is broadly balanced for this model.

Shared-memory contention still exists

The OS, browser, and inference runtime all compete for the same physical memory pool, so real-world headroom is less forgiving than raw capacity suggests.

Best improvement path

Performance by workload

WorkloadGradeFitDecodeTTFTContext
ChatSRuns well37.6 tok/s2812 ms33K
CodingSRuns well37.6 tok/s5155 ms33K
Agentic CodingSRuns well37.6 tok/s7497 ms33K
ReasoningSRuns well37.6 tok/s6092 ms33K
RAGSRuns well37.6 tok/s9372 ms33K

Quantization options

How Phi-4-reasoning-plus 14B (14.699999809265137B params) fits at each quantization level on MacBook Pro M4 Max 64GB (46.1 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
5.7 GB
LowA82
Q3_K_S
3
7.2 GB
LowA82
NVFP4
4
8.2 GB
MediumA82
Q4_K_M
4
9.0 GB
MediumA83
Q5_K_M
5
10.6 GB
HighA83
Q6_K
6
12.1 GB
HighA83
Q8_0
8
15.7 GB
Very HighA85
F16Best for your GPU
16
30.1 GB
MaximumS88

Get started

Copy-paste commands to run Phi-4-reasoning-plus 14B on your machine.

Run

ollama run phi4-reasoning

Your hardware

More models your MacBook Pro M4 Max 64GB can run

ModelParamsGradeDecodeCapabilities
👁 Alibaba
Qwen3-Coder 30B A3B Instruct		30.5BS52 tok/s
👁 Alibaba
Qwen 3.5 27B		27BS36.1 tok/s
👁 Alibaba
Qwen 3.6 27B		27BS27.4 tok/s
👁 Alibaba
Qwen 3.6 35B A3B		35BS43.7 tok/s
👁 Alibaba
Qwen3-VL 30B A3B Instruct		30BS53.8 tok/s

Frequently asked questions

See all results for MacBook Pro M4 Max 64GBSee all hardware for Phi-4-reasoning-plus 14B