A chat assistant that runs on your own machine.

Licensed per device to businesses: one model, nothing to configure, no accounts to manage.

Everything runs on your computer

Your work stays on your machine.

The model runs on the computer in front of you, so conversations and the documents you open are answered where they already are.

Runs locally

No queue, no shared capacity, no per-message cost.

Works offline

Once installed, Fenrir answers with no internet connection at all.

Nothing collected

We hold your licence and your seats. Your conversations never reach us.

Web lookup is the one feature that reaches outside the machine, and only for the messages you turn it on for.

What it does

Chat, locally

A single model, chosen and configured for you, running on your machine.

Read your files

Attach PDF, Word, Excel, PowerPoint, RTF, HTML, CSV, text and code, up to 60 MB each. The text is extracted on your machine.

Work in a folder

Attach a folder to a chat and Fenrir works inside it — listing files, reading them, writing them, and saving documents it produces.

Produce documents

Turn an answer into a CSV, Excel, Word, PowerPoint or PDF file, built on your machine with no external converter.

Long documents

A document too big to read at once is cut into parts and read in order, with a card ticking the parts off. You get one answer at the end.

Web lookup, when you want it

Turn it on for a message and Fenrir searches and reads pages. It stays off the rest of the time, and you can see every lookup it made.

Projects

Instructions and knowledge files that apply to every chat in the project.

Skills

Instructions for a recurring job. Type / at the start of a message and the installed skills appear.

Memory

Facts filed under Who I am, How I work, What I'm on and Context. All of it can be viewed, edited, deleted and exported.

Effort

Balanced, Thorough or Max. All three give a complete answer; the setting changes how much reasoning happens first.

Connectors

Reach your own systems through remote MCP servers over HTTPS. Nothing installs on your computer, and anything that changes the outside world asks you first.

Work account

Microsoft Entra ID sign-in, with Outlook calendar and mail, once IT has created the app registration.

For IT

Requirements

Operating system
macOS, on an Apple silicon Mac
Disk
Several gigabytes for the model, downloaded once per machine on first launch
Network
Needed twice on first launch: to activate the licence key, and to download the model
Licence
Required before the application will open. There is no trial or unlicensed mode.

Licences and support

Licensing, invoices, and anything about the software: support@fenrirent.com

Privacy

We are the controller of the data described here. We process it to supply and support software the customer has bought, which is the performance of that contract.

What we hold. For each customer company: its name, its country, and one contact email address. For each licence: the seats, the plan, the expiry date, and the last six characters of the key. For each device holding a seat: an identifier derived from the machine, the platform, the application version, and the time it last checked in.

What we do not hold. No conversation content, no files, no prompts, no keystrokes — none of it reaches us, because the model runs on the device. We do not record the IP address or the browser agent of any request our service receives.

What the application sends us. Once a day it asks whether the licence is still valid. That check carries the licence, an identifier for the machine, and the version of the application. It carries nothing else.

How it is kept. Contact addresses are encrypted with a key held in AWS Key Management Service, separately for each company. The service runs in the European Union (Stockholm).

Email. We send licensing email only — the key you bought, a warning before a licence expires, and a notice when a seat is stopped. We send no marketing. Delivery failures and spam complaints are recorded against the company and acted on; tell us to stop and we stop.

Your rights. Ask us for a copy of what we hold about you, ask us to correct it, or ask us to erase it, at support@fenrirent.com. Erasing a company destroys its encryption key, so everything stored under it becomes unreadable. Backups taken before that point are deleted on their normal retention schedule.