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text model · Mistral · macOS

Can I run Mistral Small 3.1 24B on Apple M4 Pro (24GB)?

Compatibility verdict VRAM threshold engine
Yes, but tight GPU accelerated ~16 tok/s est.

Yes. Mistral Small 3.1 24B runs on Apple M4 Pro (24GB) at Q4_K_M (~15.4 GB of ~16 GB usable).

Needs ~15.4 GB Device usable ~16 GB

Fits at Q4_K_M (~15.4 GB of ~16 GB usable) but with little headroom. Close other apps, or drop to a 2k context to free about a gigabyte.

That figure is at a 4k context and moves about ±15% as context length changes. Apple M4 Pro (24GB) leaves ~0.6 GB of headroom.

Q4_K_M needed
~15.4 GB
Usable on device
~16 GB
Device memory
24 GB
Best quant
Q4_K_M
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Which quant fits

Quant ladder vs ~16 GB usable
Q2_K
~12.1 GB
Q3_K_M
~13.7 GB
Q4_K_M
~15.4 GB
Q5_K_M
~19.1 GB
Q6_K
~21.7 GB
Q8_0
~25.3 GB
FP16
~49.2 GB
The line marks Apple M4 Pro (24GB)'s ~16 GB budget; rungs past it are too large.

Running cost · estimate

Power & economics est.
Power draw
~140 W
Electricity / 1M tokens
~$0.36
Pays for itself after
~14,279M tok

At ~$0.15/kWh and the estimated ~16 tok/s, a million generated tokens costs about $0.36 in electricity. Versus a hosted API at ~$0.5 per million tokens, the ~$1,999 Apple M4 Pro (24GB) pays for itself after roughly 14,279 million tokens, so local hardware is mostly a fixed cost, not a per-token one. TDP is the peak draw, so this is an upper bound. Assumptions.

Run it

Install commands macOS

Pick your tool. All 3 load the same Q4_K_M weights.

Ollama
$ ollama run mistral-small3.1:24b
llama.cpp
$ llama-cli -hf bartowski/mistralai_Mistral-Small-3.1-24B-Instruct-2503-GGUF:Q4_K_M
LM Studio
$ lms get bartowski/mistralai_Mistral-Small-3.1-24B-Instruct-2503-GGUF
Model Mistral
Parameters
24B
Q4_K_M size
13.35 GB
Q8_0 size
23.33 GB
Context
128k
Ollama tag
mistral-small3.1:24b
Full Mistral Small 3.1 24B requirements →
Device macOS
Memory
24 GB unified
Usable for weights
~16 GB
Power draw
~140 W
Best runtime
Ollama (MLX backend, preview) / MLX direct
Best models for Apple M4 Pro (24GB) →

You could also run

Run Mistral Small 3.1 24B on other hardware

FAQ

Can Apple M4 Pro (24GB) run Mistral Small 3.1 24B?

Yes. Mistral Small 3.1 24B runs on Apple M4 Pro (24GB) at Q4_K_M (~15.4 GB of ~16 GB usable).

How much memory does Mistral Small 3.1 24B need?

It is a tight fit on Apple M4 Pro (24GB). At Q4_K_M the weights are ~13.35 GB; with KV cache and runtime overhead, budget ~15.4 GB at a 4k context.

What is the best tool to run Mistral Small 3.1 24B on macOS?

LM Studio for a simple setup; mlx-lm for the most speed. vLLM is NOT a Mac tool, it is a CUDA/Linux serving engine. Unified memory is not a fixed VRAM slice; ~70% is usable for weights.

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Sources

Weights are measured from GGUF files; KV cache and overhead are computed, so totals can vary ~15% with context and runtime. Any tok/s is a bandwidth estimate. See methodology.