Platform overview
One model, agents inside, running work on the machines you own.
Sentinel is a model for the work chat assistants hand back: its agents read your files, run your tools, control your devices and keep going after you close the laptop. Built on open-weight models. Your rules are enforced, your data stays on hardware you own, and the pricing is on the page.
User
Sentinel
Merged 1,284 rows into master.xlsx. What changed since last week:
- 37 new customers, 4 closed accounts
- Two duplicate invoices removed (INV-2291, INV-2304)
- Revenue up 6.2 % week on week
How it fits together
Three pieces, one platform
A model with agents inside, rules it cannot move, and a runtime you already own.
The model
One call in, finished work out. Inside it, agents plan the job, call tools, check their own work and report back with the result. When a step fails they retry, compact or reroute on their own.
The rules
Allowed tools, paths and devices, a daily spend cap and an audit log of every action. The rules live outside the model, so no prompt can talk it past them.
The runtime
Runs on your Mac, a server you own or a private container. Sessions, memory and keys stay there. Open it from the web, the Mac app or your phone.
Capabilities
What you get
Self-healing turns
Every failure is classified and cured in order: retry, compact, reroute to another model. One line of notice, then the work continues.
Plans you can resume
Long jobs keep a plan. Close the laptop, lose the network, restart the server: the turn resumes from the last finished step.
Memory that learns
After a mistake it writes a lesson so the same mistake does not happen twice. Documents, screens and short videos become knowledge it cites and playbooks it can follow.
Tools and MCP
Files, shell, browser, screenshots and any MCP server. Servers that crash come back on their own with backoff.
Rules and audit
Per-device permissions, path limits, spend caps and a log of every call, so a team can run it without losing control.
Every device
The same model on your laptop, your always-on mini and your phone, with sessions that run side by side without blocking each other.
Live view
Measured, not promised
Numbers from our own test runs against the production setup, with the test that produced each one.
Share of turns in the ten-turn smoothness run that ended with a real answer and no error, with a median first output of 1.3 s (tests/test_smoothness.py, 12 Oct 2026).
Private by construction
We keep this much of your work:
A design choice, not a policy line. Sentinel runs on hardware that belongs to you, so there is nothing on our side to log, leak or train on.
- Sessions
- never stored
- Files and outputs
- never uploaded
- Model keys
- never seen
- Your work
- never trained on
Built for real workflows
Turn a folder of exports into a dataset
Point it at the mess: exports, PDFs, inboxes. Sentinel writes clean, schema-checked rows to the format your pipeline expects, flags the rows it could not read, and keeps the steps so next week is one command.
Describe the output
invoices-2026.parquet
0 / 5 parts · writing…
FAQ
Questions, answered
What is Sentinel for?
Work that needs more than a chat window: reading and writing your files, running commands, deploying, researching with sources kept, controlling your own devices, and jobs that take hours.
What will it not do?
It follows your rules: tools, paths and devices you have not allowed are off, and spend caps are enforced outside the model. You stay responsible for what you ask it to do, and our terms rule out using it to harm people or to break into systems you do not own.
Do you store my work?
No. Sentinel runs on your machine or a container that belongs only to you. Sessions, memory and keys live there. Delete everything with one command.
Which models does it use?
Local open models on your own hardware by default, with optional hosted models on paid plans. Sessions keep the same model settings so the prompt cache holds and turns stay fast.
How is it priced?
Free to start, then $20 or $50 a month for more usage. Every plan and limit is on the pricing page, with no sales call.
See how Sentinel handles your workflow.
Free to start, no card needed. Bring a real task and watch it finish.