Can Agents-A1 4B run on Galaxy Z Fold8 Ultra?

YESRuns great
Formula estimate

What this means

Our estimate says Agents-A1 4B should fit comfortably on your Galaxy Z Fold8 Ultra.

Download the Q4_K_M version, which is about 2.7 GB. We expect it to use about 3.7 GB of the roughly 12 GB available to a model on this phone.

At the estimated speed, a roughly 300-word answer may take about 28 seconds to finish.

This result is calculated from the phone and model specifications. It has not been measured on this exact phone and setup.

14.1tokens/s
estimated · faster than you read
3.7GB
needed at Q4_K_M
Q4_K_M
quant checked
needs 3.7 GBusable 12 GB
Snapdragon 8 Elite Gen 516 GB RAMCPU / GPUAlso sold with 12 GB

See how fast it feels

Estimated at 14.1 tokens/s — faster than you read. A ~300-word reply takes about 28 seconds on this phone.

Live demo · 14.1 tokens/s

Where the memory goes

ComponentDetailGB
Model weightsQ4_K_M GGUF (2.7 GB) + mmap overhead2.8
KV cache4K context window0.3
Runtimellama.cpp + app overhead0.6
Total neededat Q4_K_M, 4K context3.7
Working budget16 GB RAM Android system reserve12
Headroomremaining inside the working budget8.3

Pick your quant

QuantDownloadVerdictSpeed
Q4_K_M BEST HERE2.7 GB Runs great~14.1 tokens/s

Use the right workflow for this model

The model fits in memory, but it is not an ordinary chat model.

This model is designed to run long-horizon research, tool-calling, and agent workflows. PocketPal does not provide the required a compatible tool harness that can execute calls and return their results to the model, so the tracked file is not a beginner phone-chat path.

Read the publisher workflow ↗

If you only want a normal private chat, use this simpler model instead:

Check Llama 3.2 3B

Related checks

More on Galaxy Z Fold8 Ultra
Qwen3 0.6BQwen3 1.7BQwen3 4BLlama 3.2 1BLlama 3.2 3B
Agents-A1 4B on other phones
OPPO Find X8 Provivo X200 ProGalaxy S26Galaxy S26+Galaxy S26 Ultra