Run Nanbeige4.2 3B locally on iPhone, iPad & Mac
New looped-transformer architecture, chat + reasoning + tool-use template. IQ4_XS (not Q4_K_M — the default quant misses our size cap by 184 MB, this one doesn't).
In privateSLM, Nanbeige4.2 3B is an everyday assistant for chat, writing, summarising and quick questions. You download the model once, and from then on every conversation runs entirely on your device — no cloud, no account, no tracking, and it keeps working with the radio off.
At a glance
| Model | Nanbeige4.2 3B |
|---|---|
| Category | Generalists |
| Download size | 2.44 GB (one time) |
| Quantization | Q4_XS (GGUF) |
| Minimum device RAM | 4 GB |
| Runs offline | Yes — fully on-device after download |
| Source | Hugging Face |
Will it run on my device?
Nanbeige4.2 3B needs a device with at least 4 GB of RAM — that means iPhone 13 Pro / iPhone 14 and later, M-series iPads, and any Apple Silicon Mac. The privateSLM catalog states the RAM requirement for every model up front, so you know before you download.
How to run Nanbeige4.2 3B in privateSLM
- Get privateSLM on the App Store — one-time purchase, no subscription.
- Open Models, pick Nanbeige4.2 3B, and tap Download (2.44 GB, once).
- Select it as your active model and chat — airplane mode included.
On iPhones, iPads and Macs with Apple Intelligence, privateSLM can also answer instantly with the built-in system model — zero downloads. A catalog model like Nanbeige4.2 3B is for when you want this particular specialist, offline, under your control.
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- Llama 3.2 3B Instruct — 2.02 GB, needs 4 GB RAM
- Browse the full catalog →
FAQ
Does Nanbeige4.2 3B run offline on iPhone?
Yes. After a one-time 2.44 GB download inside privateSLM, Nanbeige4.2 3B runs entirely on-device via llama.cpp. Airplane mode works — nothing is ever sent to a server.
How much RAM does Nanbeige4.2 3B need?
A device with at least 4 GB of RAM — in practice iPhone 13 Pro / iPhone 14 and later, M-series iPads, and any Apple Silicon Mac.
Is Nanbeige4.2 3B free to use in privateSLM?
The model itself is open-weights (Q4_XS GGUF) and the download is free. privateSLM is a one-time purchase — no subscription, no per-message fees.