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text model · DeepSeek-V4 · macOS

Can I run DeepSeek-V4-Flash on Apple M2 (16GB)?

Compatibility verdict VRAM threshold engine
No, not enough memory would not load

No. DeepSeek-V4-Flash needs ~179.7 GB even at Q4_K_M, but Apple M2 (16GB) only has ~10.5 GB usable.

Needs ~179.7 GB Device usable ~10.5 GB

Needs ~179.7 GB even at Q4_K_M, but only ~10.5 GB is usable.

That figure is at a 4k context and moves about ±15% as context length changes.

The gap is about 169.2 GB: DeepSeek-V4-Flash needs roughly 179.7 GB at Q4_K_M and Apple M2 (16GB) leaves only about 10.5 GB usable for a model. The lightest tracked hardware that runs DeepSeek-V4-Flash is the Apple M3 Ultra (256GB) at 256 GB. See DeepSeek-V4-Flash on Apple M3 Ultra (256GB).

Q4_K_M needed
~179.7 GB
Usable on device
~10.5 GB
Device memory
16 GB
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Which quant fits

Quant ladder vs ~10.5 GB usable
Q2_K
~123.7 GB
Q3_K_M
~143.6 GB
Q4_K_M
~179.7 GB
Q5_K_M
~207.2 GB
Q6_K
~237.7 GB
Q8_0
~307.1 GB
FP16
~572.8 GB
The line marks Apple M2 (16GB)'s ~10.5 GB budget; rungs past it are too large.

How to run it

On macOS use LM Studio (Polished GUI, ships MLX on Apple Silicon, one-click model downloads.).

Model DeepSeek-V4
Parameters
284B (MoE, 13B active)
Q4_K_M size
174.87 GB
Q8_0 size
302.27 GB
Context
1000k
Full DeepSeek-V4-Flash requirements →
Device macOS
Memory
16 GB unified
Usable for weights
~10.5 GB
Power draw
~50 W
Best runtime
Ollama (llama.cpp Metal backend) / MLX
Best models for Apple M2 (16GB) →

What you can run instead

Run DeepSeek-V4-Flash on other hardware

FAQ

Can Apple M2 (16GB) run DeepSeek-V4-Flash?

No. DeepSeek-V4-Flash needs ~179.7 GB even at Q4_K_M, but Apple M2 (16GB) only has ~10.5 GB usable.

How much memory does DeepSeek-V4-Flash need?

Apple M2 (16GB) does not have enough memory. At Q4_K_M the weights are ~174.87 GB; with KV cache and runtime overhead, budget ~179.7 GB at a 4k context. It is a Mixture-of-Experts model (284B total / 13B active), so all experts must stay in memory; memory tracks total params, not active params.

What is the best tool to run DeepSeek-V4-Flash 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.