BUILT · OPEN SOURCE · SIDE PROJECT

Pocket LLM: A Private AI That Fits in Your Pocket.

An 8-billion-parameter AI chat that runs straight from a USB thumb drive, on Mac, Windows, or Linux. No internet. No cloud account. No subscription. Plug it in, click start, and chat. Nothing you type ever leaves the machine.

Model

8B parameters

On the drive

~5.3 GB

Internet needed

None

GPU needed

None

SEE IT RUNNING

Real Screenshots. Real Answers.

Captured on a 2019 Intel laptop with no GPU. Every reply below was generated locally, on the machine.

Chrome window at localhost:8081 showing the Pocket LLM chat screen, Hello there, running the dolphin-2.9.4-llama3.1 8B model
01 · Plug in the drive, click start, and a private chat opens in your browser. Note the address: localhost. It is all running on this machine.
Prompt: In 3 short sentences, explain Revenue Operations like a pirate captain. Reply: Arr matey! Revenue Operations be the treasure map leadin' us to more loot.
02 · Occupational hazard: I asked it to explain Revenue Operations like a pirate captain. 77 tokens in 15 seconds.
Prompt: Write a haiku about running an AI on a thumb drive with no internet. Reply: On tiny flash, data flows without net, mind's own machine.
03 · A haiku about itself. The syllable count is creative. The privacy is not.
Pocket LLM answering a question about Dolphin and Llama with a confident but incorrect answer, 249 tokens in 46 seconds
04 · Honest moment: asked about itself, it confidently credits Hugging Face for Llama (Meta built it) and gets the architecture wrong. Small offline models trade some accuracy for privacy. Knowing where that line sits is the whole job.

WHY I BUILT IT

AI You Own, Not AI You Rent.

Private by design

No prompts sent to a cloud. Sensitive notes, drafts, and data stay on the machine you are sitting at.

Works offline

On a plane, in a secure facility, or anywhere the Wi-Fi gives up. Once it is set up, it needs nothing else.

Portable

One drive, three operating systems. Your settings and chat history travel with the drive.

No subscription

Open-source model, open-source runtime. The only cost is the thumb drive.

It is the same thinking I bring to AI inside revenue organizations: understand what runs where, keep control of your data, and do not lock yourself into a single vendor.

HOW IT WORKS

Three Files and a Click.

01

The runtime

Mozilla's llamafile: a single program that runs the model and serves a chat page, on any OS.

02

The model

Dolphin 2.9.4 on Llama 3.1 8B, quantized to about 4.9 GB so it runs on an everyday laptop CPU.

03

The launchers

My one-click start and stop scripts for Mac, Windows, and Linux. They wait for the model, open the chat, and shut down cleanly.

The GitHub repo has the scripts plus a step-by-step guide: which files to download, how to pick a model size for your hardware, and fixes for the common snags.

Build your own

ABOUT THE BUILDER

By Day, I Build Revenue Engines.

I am James Hahn. I lead Revenue Operations and go-to-market for B2B technology companies, from early stage through IPO. I build things like this because hands-on work keeps my AI strategy grounded in what actually runs.