Model guide

How to run DeepSeek on iPhone

You cannot fit the largest DeepSeek models on a phone, but you can run a small distilled version locally and offline. Here is how to do it on iPhone or iPad without sending prompts to a cloud server.

Updated June 20, 20267 min readModels
DeepSeek local model running on an iPhone.

Quick answer: The full DeepSeek models are far too large for a phone. To run DeepSeek on iPhone, use a small distilled or quantized version in a compatible GGUF format inside a local LLM app like Local AI Chat. Import the file, start a chat, and confirm it answers in airplane mode so you know it is running on device.

What "DeepSeek on iPhone" really means

When people search for DeepSeek on iPhone, they usually mean one of two things: using the hosted DeepSeek service through an app, or running a DeepSeek model on the device itself. Those are very different. The hosted service sends your prompt to a remote server. Running the model locally keeps supported processing on your phone.

This guide is about the local path. The catch is size: flagship DeepSeek models are huge, so on a phone you use a small distilled variant. These smaller models keep much of the style and usefulness while fitting in mobile memory and storage.

Pick a size that fits your phone

Distilled 1.5BLightest option. Good for older iPhones and quick everyday writing and summaries.
Distilled 7B (quantized)Stronger answers, but heavier. Best on newer iPhones with free storage and RAM.
4-bit GGUFUse Q4 quantization to shrink the file and memory use with little quality loss.
StorageLeave several gigabytes free. Larger models need more space and more memory to load.

Steps to run DeepSeek locally

  1. Install a local LLM app. Download a local LLM app for iPhone from the App Store. This needs internet once.
  2. Import a compatible DeepSeek GGUF. Use a small distilled model and import the GGUF file by URL.
  3. Run a first chat. Send a short prompt and confirm the model responds on device.
  4. Confirm it is offline. Switch to airplane mode and ask again to verify it works with no connection.

Is local DeepSeek private?

Running a model locally changes the privacy picture. When supported chat is processed on your device, prompts do not need to leave the phone. That is the main reason people run open models like DeepSeek on iPhone instead of using a hosted service for sensitive notes, drafts, or ideas. For a deeper look, see our private AI chat vs cloud AI comparison.

Rule of thumb: Use a small distilled DeepSeek model, prefer a 4-bit GGUF, and verify offline behavior in airplane mode before you rely on it.

Where Local AI Chat fits

Local AI Chat runs supported local models on iPhone and iPad and lets you import compatible GGUF files, including small DeepSeek variants. It is built for private, offline mobile AI with image understanding and text-to-speech, and no account is required for supported local features.

Related guides

Run Qwen on iPhoneAnother strong small model on device. Best local LLM models for iPhoneCompare sizes and trade-offs. Run Llama on iPhoneImport and test a Llama GGUF.