NEURALVAULT
Download

An agent harness that runs on your own machine, keeps what it learns as Markdown you can open, and answers on a model you chose.

One installer for all three editions. Which one it becomes is decided by the account you sign in with, so the choice below is about what happens after you install, not about which file to fetch.

your vault
  • clients/acme/brief.md
  • meetings/2026-09-08-standup.md
  • research/pricing-notes.md
cortex wants to write
append to clients/acme/brief.md
  ## Next steps
+ Confirm scope with Acme before Friday
+ Send the revised estimate, £4,800
model llama3.1 · on this machinenetwork idlecheckpoint taken, rewind available
Nothing is written until you approve it, and every approved write is snapshotted first so it can be put back. Running a local model, as shown, nothing you type leaves the machine. An illustration of the approval flow rather than a screenshot.
Which edition

Same file. Three ways it ends up.

What you download is identical. What differs is the account you sign into afterwards, and that is what each of these pages is about.

Still deciding? Compare the editions, where every capability is marked with whether it works in this build, is partly built, or is granted by your plan and not written yet. Or read what NeuralVault actually does first.

Before you download

What it needs to run

Free, Personal and Business are the same application with a subscription between them, so the machine needs the same things whichever one you end up on.

Windows

Windows 10 or 11, 64-bit. There is no macOS build, no Linux build and no ARM build.

The download

About 115 MB, and it installs for your user account only, so Windows never asks you for an administrator password.

On your own API key

The light way to run it. The model does its thinking on your provider’s hardware, so your machine only has to run the app.

On a local model

Much heavier, and worth knowing before you start. Ollama holds the whole model in memory for as long as it stays loaded.

The one local-model number worth having in advance: the model our getting-started guide suggests, qwen3.5:9b, is a 6.6 GB download, and a smaller model costs you proportionally less. We do not publish a minimum memory figure, because with a cloud provider the app is the only thing running on your machine and with a local model it is the model that decides, not us. The app carries its own browser engine, so setup fetches nothing else, and the first run needs a connection only to sign in.