Will It Run AI

Can Command R+ 104B run on MacBook Pro M4 Max 128GB?

YES — Tight Fit

B64Good
Estimated from fit model

Command R+ 104B needs ~81.6 GB VRAM. MacBook Pro M4 Max 128GB has 92.2 GB. With Q4_K_M quantization, expect ~10 tok/s.

Runtime: llama.cppCapacity: TightBandwidth: 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) 81.6 GB, 10.3 tok/s, Tight fit
81.6 GB required92.2 GB available
89% VRAM used

Fit status

Tight fit

Decode

10.3 tok/s

TTFT

18805 ms

Safe context

66K

Memory

81.6 GB / 92.2 GB

Memory breakdown

Weights63.4 GB
KV Cache3.4 GB
Runtime0.9 GB
Headroom13.8 GB

See how fast it feels

See how fast it feelsCommand R+ 104B on MacBook Pro M4 Max 128GB
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: 10.3 tok/s decode · 18.8s TTFT (warm) · 26 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
ChatBTight fit10.3 tok/s10257 ms66K
CodingBTight fit10.3 tok/s18805 ms66K
Agentic CodingBTight fit10.3 tok/s27352 ms66K
ReasoningBTight fit10.3 tok/s22224 ms66K
RAGBTight fit10.3 tok/s34190 ms66K

Quantization options

How Command R+ 104B (104B params) fits at each quantization level on MacBook Pro M4 Max 128GB (92.2 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
40.6 GB
LowB63
Q3_K_S
3
51.0 GB
LowB65
NVFP4
4
58.2 GB
MediumB65
Q4_K_M
4
63.4 GB
MediumB65
Q5_K_MBest for your GPU
5
74.9 GB
HighB65
Q6_K
6
85.3 GB
HighF0
Q8_0
8
111.3 GB
Very HighF0
F16
16
213.2 GB
MaximumF0

Get started

Copy-paste commands to run Command R+ 104B on your machine.

Run

ollama run command-r-plus

升级选项

能流畅运行 Command R+ 104B 的硬件

Frequently asked questions

Can MacBook Pro M4 Max 128GB run Command R+ 104B?

Yes, MacBook Pro M4 Max 128GB can run Command R+ 104B with a B grade (Tight fit). Expected decode speed: 10.3 tok/s.

How much VRAM does Command R+ 104B need?

Command R+ 104B (104B parameters) requires approximately 81.6 GB of memory with Q4_K_M quantization.

What is the best quantization for Command R+ 104B?

The recommended quantization for Command R+ 104B is Q4_K_M, which balances quality and memory efficiency.

What speed will Command R+ 104B run at on MacBook Pro M4 Max 128GB?

On MacBook Pro M4 Max 128GB, Command R+ 104B achieves approximately 10.3 tokens per second decode speed with a time-to-first-token of 18805ms using Q4_K_M quantization.

Can MacBook Pro M4 Max 128GB run Command R+ 104B for coding?

For coding workloads, Command R+ 104B on MacBook Pro M4 Max 128GB receives a B grade with 10.3 tok/s and 66K context.

What context window can Command R+ 104B use on MacBook Pro M4 Max 128GB?

On MacBook Pro M4 Max 128GB, Command R+ 104B can safely use up to 66K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

Is unified memory on MacBook Pro M4 Max 128GB as fast as VRAM for Command R+ 104B?

Not always. MacBook Pro M4 Max 128GB can often fit larger models thanks to unified memory, but a discrete GPU with dedicated high-bandwidth VRAM may still decode faster once the model fits. For this combination, the important distinction is capacity versus sustained throughput.

See all results for MacBook Pro M4 Max 128GBSee all hardware for Command R+ 104B
Embed this result

Paste this snippet into any page to show a live fit card.

<iframe src="https://willitrunai.com/embed/command-r-plus-104b-on-m4-max-128gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>

Preview: