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text model · Phi-4 · Android

Can I run Phi-4-reasoning on Generic Android Phone (12GB RAM)?

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

No. Phi-4-reasoning needs ~10.1 GB even at Q4_K_M, but Generic Android Phone (12GB RAM) only has ~8.5 GB usable.

Needs ~10.1 GB Device usable ~8.5 GB

Needs ~10.1 GB even at Q4_K_M, but only ~8.5 GB is usable.

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

The gap is about 1.6 GB: Phi-4-reasoning needs roughly 10.1 GB at Q4_K_M and Generic Android Phone (12GB RAM) leaves only about 8.5 GB usable for a model. The lightest tracked hardware that runs Phi-4-reasoning is the Nvidia GeForce RTX 3060 (12GB) at 12 GB. See Phi-4-reasoning on Nvidia GeForce RTX 3060 (12GB).

Q4_K_M needed
~10.1 GB
Usable on device
~8.5 GB
Device memory
12 GB
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Which quant fits

Quant ladder vs ~8.5 GB usable
Q2_K
~7.6 GB
Q3_K_M
~8.5 GB
Q4_K_M
~10.1 GB
Q5_K_M
~11.7 GB
Q6_K
~13.2 GB
Q8_0
~16.2 GB
FP16
~31 GB
The line marks Generic Android Phone (12GB RAM)'s ~8.5 GB budget; rungs past it are too large.

How to run it

On Android use PocketPal AI (Polished app, download GGUF and run offline.).

Model Phi-4
Parameters
14B
Q4_K_M size
8.43 GB
Q8_0 size
14.51 GB
Context
32k
Ollama tag
phi4-reasoning:14b
Full Phi-4-reasoning requirements →
Device Android
Memory
12 GB ram
Usable for weights
~8.5 GB
Best runtime
llama.cpp (PocketPal) or MLC-LLM
Best models for Generic Android Phone (12GB RAM) →

What you can run instead

Run Phi-4-reasoning on other hardware

FAQ

Can Generic Android Phone (12GB RAM) run Phi-4-reasoning?

No. Phi-4-reasoning needs ~10.1 GB even at Q4_K_M, but Generic Android Phone (12GB RAM) only has ~8.5 GB usable.

How much memory does Phi-4-reasoning need?

Generic Android Phone (12GB RAM) does not have enough memory. At Q4_K_M the weights are ~8.43 GB; with KV cache and runtime overhead, budget ~10.1 GB at a 4k context.

What is the best tool to run Phi-4-reasoning on Android?

On Android, PocketPal AI (Polished app, download GGUF and run offline.) is the go-to option. NPU acceleration is limited and chip-specific; most apps run on CPU. Expect 1B-4B class.

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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.