Skip to content
Insights ·

On-device AI: why your next model may run on a laptop

By Ramesh Emandi, Co-Founder and CTO · Last updated

Quantana cover for an article on on-device AI: a processor chip outline with a lime neural network at its core, representing a language model running locally on a laptop.

In short: On-device AI runs a language model on the laptop or phone itself, not a cloud server. In 2026 it became practical: laptop chips ship with 40 to 80 TOPS neural processors, capable small open-weight models run offline, and Apple, Google and Microsoft all ship tools for local models. Running costs fall and data stays put.

This article explains what changed, what local models are good for, and how to decide what should run on a device, on your own servers or in the cloud. External facts link to numbered primary sources at the end, all published within the last 12 months unless marked as accessed.

What is on-device AI?

On-device AI, sometimes called local AI or edge AI, means the model runs on the hardware in front of you. Your prompt, documents and the model's answer never leave the machine. A local LLM is the same idea applied to large language models: you download the model weights once and run them on a laptop, desktop or phone.

That is different from the way most people use AI today, where every request travels to a provider's data centre and is billed per token. Cloud AI is still the right choice for the hardest tasks. But a growing share of everyday work no longer needs a frontier model in a data centre.

Why does cloud AI get expensive for always-on tasks?

Cloud pricing works well for occasional, heavy tasks. It works badly for tools that watch and assist all day.

We learnt this first-hand. We built an internal assistant that followed what our designers and testers were doing and gave live advice: an alignment that was off, a spelling mistake in a mock-up, a variation worth trying, a bug a tester had missed. It was genuinely useful. It also cost about US$40 per user per day, because everything it saw was sent to the cloud for analysis. Over 20 working days that is roughly US$800 per person per month, for one assistant.

The economics only change when the model runs locally. Our expectation, which we shared in a recent client session, is that these models will become efficient enough to run on your phone and laptop, and that when that happens AI will handle the simple work while people apply their thinking one level above. In 2026 that shift became visible.

Cost of an always-on assistant
Our internal assistant watched designers and testers at work and sent everything it saw to the cloud. A local model removes the per-request bill. Illustrative, excludes hardware. Cloud figure from our own assistant, as described in this article.
Bar chart: an always-on assistant run in the cloud cost about US$40 per user per day, roughly US$800 per person per month over 20 working days. Run on the device, the marginal cost is near zero, excluding hardware.
Where the model runsPer user per dayPer person per month (20 working days)
Cloud toolAbout US$40About US$800
On the deviceNear-zero marginal costNear-zero marginal cost, excluding hardware

What changed in on-device AI in 2026?

Four developments made local models practical for business use.

Laptop chips with serious neural processors

Microsoft's Copilot+ PC standard requires a neural processing unit (NPU) capable of 40+ TOPS (trillion operations per second), along with 16 GB of RAM and 256 GB of storage. Qualifying chips include AMD Ryzen AI 300 and 400 series, Intel Core Ultra 200V and 300V series and Snapdragon X series processors. [1] In January 2026, Qualcomm announced the mainstream Snapdragon X2 Plus with a Hexagon NPU rated at 80 TOPS, with devices from leading manufacturers due in the first half of 2026. [2] Neural processors are moving from premium machines into ordinary business laptops.

Small open-weight models that run offline

Google released Gemma 4 on 2 April 2026 under the commercially permissive Apache 2.0 licence. Its two edge models, E2B and E4B, are built to "run completely offline with near-zero latency across edge devices like phones", feature native audio input for speech recognition and have a 128K token context window. Larger versions in the family target laptop GPUs. [3] Open weights mean a business can run the model on its own hardware without per-token fees.

Apple opened its on-device model to developers

At WWDC 2026, Apple said its on-device model is gaining vision capabilities and that the Foundation Models framework is going open source. Apple's server model, running on Private Cloud Compute, is available "with no cloud API costs to developers who have less than 2 million first time downloads". [4] Apple also introduced Core AI for running custom models on its devices, with "no server to manage, no cost per token, and no latency to the cloud". [5]

Microsoft made local models a supported product

Microsoft made Foundry Local generally available on 9 April 2026. It runs on Windows, macOS on Apple Silicon and Linux, picks the GPU, NPU or CPU automatically, caches models on the device, "works offline" and has "no per-token costs". Its curated catalogue includes GPT OSS, Qwen, Whisper, DeepSeek, Mistral and Phi models. [6] Running a local model on a company laptop is now a supported path, not a hobbyist project.

What can a local LLM do well today?

Small local models are not frontier models, and pretending otherwise leads to disappointment. They are very good at narrow, repetitive work where the input is in front of them:

  • Checking and proofreading. Spelling, consistency and simple layout rules, the kind of always-on assistance that is uneconomic in the cloud.
  • Transcription. Speech-to-text for meetings, field visits and voice notes, now built into small models such as Gemma 4's edge versions. [3] Our article on voice ordering for field sales shows why that matters for cost.
  • Summarising and extracting. Pulling fields from invoices, forms and emails into structured data.
  • Classifying and routing. Tagging tickets, documents or messages before a person or a larger model handles them.
  • Working offline. Sites with poor connectivity, travel, and secure environments where internet access is restricted.

Complex reasoning, long multi-step analysis and the hardest coding tasks still favour large hosted models. The skill is knowing which is which.

Is on-device AI more private and secure?

It removes one big risk: the data never leaves the device, so there is no third-party processing to assess for that task. That helps with privacy obligations and with client confidentiality.

It does not remove every risk. A laptop running a local model still needs device encryption, managed updates and control over which models staff can install. Open-weight models should come from trusted publishers and be tested before use. Logging and oversight are harder when AI runs on hundreds of separate machines, so decide what must be recorded centrally.

For regulated organisations, local models sit alongside private AI on your own servers. Quantana runs open models on its own Nvidia-powered pods or on a client's existing infrastructure, and SecGPT Vault is our private AI that runs on-premises with no internet connection. Our private AI guide covers deployment options and APRA's expectations in detail.

Should your next model run on a laptop or in the cloud?

Most organisations will use all three: device, private servers and cloud. A simple way to decide per use case:

  • Run on the device when the task is narrow, frequent, latency-sensitive or must work offline, and when sending the data out is undesirable.
  • Run on private servers when many users share the workload, the data is sensitive and you need central logging and control.
  • Use the cloud when the task needs the strongest reasoning available, demand is occasional, or speed to launch matters more than unit cost.

Route between them. A small local model can handle the first pass and hand only the hard cases to a hosted model, which is one of the levers in our guide to reducing AI running costs. That guide also covers the break-even point between hosted and self-hosted models.

We continually benchmark new releases, and we choose each model per use case after evaluations for quality, speed, cost and integration effort. If you want to know which of your AI workloads could move off the cloud, get your AI roadmap.

FAQ

Frequently asked questions

What is on-device AI?

On-device AI runs an AI model directly on a laptop, phone or other device rather than on a cloud server. Prompts and data stay on the device, the model can work offline, and there are no per-request cloud fees, though the device needs enough memory and processing power.

Can I run an LLM locally on a laptop?

Yes. Small open-weight models such as Google's Gemma 4 edge models run offline on phones and laptops, and tools such as Microsoft Foundry Local download, optimise and run models on Windows, macOS and Linux using the GPU, NPU or CPU. [3] [6] Larger models need more memory or a dedicated GPU.

What is an NPU and do I need one?

A neural processing unit is a chip designed to run AI models efficiently with low power use. Microsoft's Copilot+ PCs require an NPU of 40+ TOPS, and Qualcomm's Snapdragon X2 Plus offers 80 TOPS. [1] [2] Local models can also run on a GPU or CPU, but usually less efficiently.

Is a local LLM as good as ChatGPT or Claude?

Not for the hardest tasks. Small local models handle narrow work such as proofreading, transcription, extraction and classification well, but complex reasoning and long analysis still favour large hosted models. Many teams combine both, running simple tasks locally and sending hard cases to the cloud.

Does on-device AI reduce AI costs?

For frequent, always-on tasks, usually yes, because there are no per-token fees once the model is on the device. Microsoft describes Foundry Local as having no per-token costs. [6] You still pay for capable hardware, model testing and device management, so compare total cost per use case.

Sources

  1. Microsoft, "Windows 11 Specs and System Requirements", Copilot+ PC requirements (accessed 8 November 2026).
  2. Qualcomm, "Empowering Professionals and Aspiring Creators, Snapdragon X2 Plus Delivers Multi-day Battery Life, Fast Performance and Advanced AI", 6 January 2026.
  3. Google, "Gemma 4: Byte for byte, the most capable open models", 2 April 2026.
  4. Apple Developer, "What's new in the Foundation Models framework", WWDC26 session 241, June 2026.
  5. Apple Developer, "Integrate on-device AI models into your app using Core AI", WWDC26 session 326, June 2026.
  6. Microsoft Foundry Blog, "Foundry Local is now Generally Available", 9 April 2026.
All insights
From ambition to action

Ready to see where AI will pay off?

Get a practical roadmap: where AI will make a real difference in your business, and what it takes to get there responsibly.

Contact Global Offices
What clients say
“I commend Quantana for their outstanding role in developing our software; their expertise and commitment have been invaluable.”
Toby Carrigan · PX4 Software
“Whatever was on our mind was very nicely and rapidly captured through the design sessions we have had and they also have the right engineering teams to get it all to life and rapidly to life.”
Praveen Garimella · Indian School of Business