Can AI work without the internet?

Some can. Apple's on-device model, Google's Gemini Nano and open-source models in apps like PocketPal or LM Studio run on your own device with no connection, as long as the model was downloaded beforehand. The big cloud assistants stop when the network does.

What is an offline AI survival device?

A device or app that stores an AI model, and often offline maps and Wikipedia, so it works with no internet. Sellers' claims vary and few have been independently tested. A phone with a downloaded model and offline Wikipedia does much the same.

Should I rely on AI for first aid in an emergency?

No. A 2026 Oxford trial found people using AI made no better medical decisions than those who didn't. Keep a printed first aid manual and the British Red Cross First Aid app, which works offline, and take a course.

How big is offline Wikipedia?

About 119 GB with images, 49 GB without, or 13 GB for article introductions only, through the free Kiwix app. The medical subset is 1.7 GB.

Offline AI Survival Kit: What Works Without the Internet (UK)

Most AI stops when the internet does

The assistants most people use run in data centres. Lose your broadband and mobile signal, as households do in long power cuts, and they stop answering. Our guide to what happens if the internet goes down covers what else stops with them. The good news is that a growing amount of AI can now run on your own device, with no connection at all, as long as you set it up before you need it.

AI that runs on your own phone or laptop

iPhone, iPad and Mac. Apple says its on-device model is "available even when users are offline" (Apple, June 2025). It needs an iPhone 15 Pro or newer, or an iPad or Mac with an M1 chip or later, and up to 8 GB of storage. Some features still use Apple's servers, so they need a connection (Apple Support).
Android. Google's Gemini Nano runs on supported phones "without needing a network connection", although apps can fall back to the cloud (Android Developers).
Open-source models on a phone. Apps such as PocketPal run downloaded models with no internet required. A small model such as Llama 3.2 is a 1.3 to 2 GB download (Ollama).
On a laptop. LM Studio can run entirely offline once a model is downloaded, and recommends 16 GB of memory or more.

The catch is the same for all of them: the model has to be on the device before the network goes down. Download it now, and test it in flight mode.

The "offline AI survival" products

A small industry now sells offline knowledge for emergencies. What follows are the sellers' own claims, as we found them in October 2026.

Prepper Disk sells a 512 GB offline Wi-Fi hotspot with maps, Wikipedia and more than 1,000 survival guides for $297. It lists no AI features (Prepper Disk).
Off-Grid AI from Mountain Ready runs from a USB stick and was announced in February 2026 as "zero hallucination". One critique points out that the company hasn't published an independent evaluation, and that no such system can inspect an injury (remio.ai).
Project N.O.M.A.D. is free, open-source software that bundles a local AI model, offline Wikipedia and maps. For the AI part it suggests 32 GB of memory, a gaming-class graphics card and 250 GB of storage (GitHub).
"The Ark." People search for an "Ark AI survival device". We couldn't find a hardware device sold under that name. The closest match was an iPhone app, Ark AI!, which needs a large model download and says it "is not a substitute for professional medical" or emergency services (App Store).

Offline knowledge that needs no AI

Much of what an offline AI would tell you is better kept in its original form, which doesn't make things up.

What	How	Size
Wikipedia, offline	The free Kiwix app and its downloadable files	119 GB with images, 49 GB without, 13 GB for article introductions only
Medical Wikipedia	Kiwix's medical subset	1.7 GB
Maps	Google Maps offline areas (driving directions only, and they expire unless updated), OS Maps or the free Organic Maps	Varies by area
First aid	The British Red Cross First Aid app, which "works without internet" (British Red Cross)	Small

The limits

In an Oxford randomised trial of nearly 1,300 people, published in Nature Medicine in February 2026, people who used AI models to help with medical scenarios made no better decisions than people who didn't, and one of the researchers warned that asking an AI about symptoms "can be dangerous" (University of Oxford). The patient-safety organisation ECRI ranked the misuse of AI chatbots as the top health-technology hazard of 2026 (Fierce Healthcare). Offline models are smaller than the cloud ones, not smarter.

Running a model also uses battery. One study estimated about 20 mAh per question and answer on a high-end tablet, which is hundreds of questions on a full battery (arXiv). That's fine for a few days, if you can recharge.

A sensible offline kit

A small offline AI model on one phone or laptop, downloaded and tested in flight mode.
Offline Wikipedia, or at least its medical subset, and offline maps of where you live.
The British Red Cross First Aid app, and a printed first aid manual, because a phone can break.
Power to keep it all running: a power bank at least, and a solar-charged power station for anything longer than a weekend.
A wind-up radio, because the BBC still reaches you when nothing else does.

Every T-⁠MINUS kit includes the printed T-⁠MINUS Field Manual, an Ordnance Survey map centred on your home, a 20,000 mAh power bank and a wind-up radio. From T+7 there's a solar-charged power station, and T+30 adds a two-way satellite messenger that works with no mobile signal at all.

The offline AI survival kit: what still works when the internet doesn't