Silo — private, local-first AI

Your AI. Your machine.
Your data stays put.

Silo builds an AI assistant and the full stack beneath it — inference, models, security, sync — engineered to run entirely on hardware you own. Not privacy-by-policy. Privacy by architecture.

See the products How it works

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Two rules. No exceptions.

Local-first

Everything runs on your device. The assistant, the language model, the document index, the database — all of it lives and computes on hardware you control. No cloud dependency, no account requirement, works offline.

Privacy-first

No data leaves the device. Your conversations, files, and keys never touch our servers — we don't have servers that could hold them. When data must cross machines, it travels end-to-end encrypted with keys only you hold.

The product line

Five components, one guarantee. Each piece is useful alone; together they are a complete private AI stack.

  • Silo Assistant

    A personal AI assistant for your documents, browser, and tools — running against a model on your own machine, never anyone else's.

  • Silo Inference

    A local LLM server with an OpenAI-compatible API. Your applications get modern AI; your prompts stay on your hardware.

  • Silo Model

    Signed, verifiable model distribution. Cryptographically attested manifests and delta updates, so you always know exactly what weights you run.

  • Silo Security

    The trust layer: hardware-backed key storage, encrypted databases, and audited crypto primitives shared by every Silo component.

  • Silo Sync

    Zero-knowledge sync between your devices. End-to-end encrypted with your keys — the relay sees ciphertext and nothing else.

How it works

A silo holds what you put in it. Ours does the same — the boundary is your device, and nothing inside crosses it.

  1. Install on your hardware

    One install puts the assistant, a local model, and encrypted storage on your laptop. First run downloads the model once — after that, it works offline.

  2. Everything computes locally

    Questions, documents, and answers flow between processes on your machine. Inference happens on your CPU and GPU; storage is encrypted at rest with keys in your device's secure hardware.

  3. Sync without surrendering

    Add a second device and Silo Sync moves your data as ciphertext, end-to-end encrypted. No one in the middle — including us — can read it.

Talk to us

Questions, early access, or partnership — write to hello@silodev.net. A person reads it on a machine they own.