Will It Run AI

Can Nous Hermes 1.0 run on Mac Studio M3 Ultra 256GB?

YES — Runs Great

B68Good
Estimated from fit model

Nous Hermes 1.0 needs ~46.2 GB VRAM. Mac Studio M3 Ultra 256GB has 184.3 GB. With Q4_K_M quantization, expect ~101 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced
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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) — 46.2 GB, 101.4 tok/s, Runs well
46.2 GB required184.3 GB available
25% VRAM used

Fit status

Runs well

Decode

101.4 tok/s

TTFT

1908 ms

Safe context

16K

Memory

46.2 GB / 184.3 GB

Memory breakdown

Weights5.5 GB
KV Cache12.2 GB
Runtime0.9 GB
Headroom27.6 GB

See how fast it feels

See how fast it feelsNous Hermes 1.0 on Mac Studio M3 Ultra 256GB
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: 101.4 tok/s decode · 1.9s TTFT (warm) · 254 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
ChatBRuns well101.4 tok/s1041 ms16K
CodingBRuns well101.4 tok/s1908 ms16K
Agentic CodingBRuns well101.4 tok/s2776 ms16K
ReasoningBRuns well101.4 tok/s2255 ms16K
RAGBRuns well101.4 tok/s3470 ms16K

Quantization options

How Nous Hermes 1.0 (9B params) fits at each quantization level on Mac Studio M3 Ultra 256GB (184.3 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
3.5 GB
LowB58
Q3_K_S
3
4.4 GB
LowB58
NVFP4
4
5.0 GB
MediumB58
Q4_K_M
4
5.5 GB
MediumB58
Q5_K_M
5
6.5 GB
HighB58
Q6_K
6
7.4 GB
HighB58
Q8_0
8
9.6 GB
Very HighB58
F16Best for your GPU
16
18.5 GB
MaximumB58

Get started

Copy-paste commands to run Nous Hermes 1.0 on your machine.

Run

lms load Nous-Hermes-1.0 && lms server start

Frequently asked questions

Can Mac Studio M3 Ultra 256GB run Nous Hermes 1.0?

Yes, Mac Studio M3 Ultra 256GB can run Nous Hermes 1.0 with a B grade (Runs well). Expected decode speed: 101.4 tok/s.

How much VRAM does Nous Hermes 1.0 need?

Nous Hermes 1.0 (9B parameters) requires approximately 46.2 GB of memory with Q4_K_M quantization.

What is the best quantization for Nous Hermes 1.0?

The recommended quantization for Nous Hermes 1.0 is Q4_K_M, which balances quality and memory efficiency.

What speed will Nous Hermes 1.0 run at on Mac Studio M3 Ultra 256GB?

On Mac Studio M3 Ultra 256GB, Nous Hermes 1.0 achieves approximately 101.4 tokens per second decode speed with a time-to-first-token of 1908ms using Q4_K_M quantization.

Can Mac Studio M3 Ultra 256GB run Nous Hermes 1.0 for coding?

For coding workloads, Nous Hermes 1.0 on Mac Studio M3 Ultra 256GB receives a B grade with 101.4 tok/s and 16K context.

What context window can Nous Hermes 1.0 use on Mac Studio M3 Ultra 256GB?

On Mac Studio M3 Ultra 256GB, Nous Hermes 1.0 can safely use up to 16K tokens of context. The model's official context limit is 16K, but available memory constrains the safe maximum.

Is unified memory on Mac Studio M3 Ultra 256GB as fast as VRAM for Nous Hermes 1.0?

Not always. Mac Studio M3 Ultra 256GB 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 Mac Studio M3 Ultra 256GBSee all hardware for Nous Hermes 1.0
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