ARCUS One interviews you once, builds a private profile of how you work, and prepends it to every conversation. Stop re-explaining your practice to a chatbot.
7-day free trial. No credit card required.
What ARCUS does
ARCUS One is built around the small, persistent frictions that make every other tool feel like a toy.
Personalization
On signup, ARCUS runs a short conversational interview about your role, specialty, the work you do every day, and how you like things written. The result is a private profile that gets attached to every conversation, so you stop re-explaining your practice to a chatbot.
Prompt improvement
Every message you send is passed through a prompt-improvement step that adds the missing context, structure, and instructions a strong prompt would have included. You write naturally. ARCUS turns it into something the model can answer well on the first try.
Workflows
Create a workflow for a recurring task, a project, or a specific kind of work. Each workflow has its own context, its own chat history, and its own colored tag in the sidebar. No cross-talk between cases, no prompt pollution.
Documents
Drop in a PDF, DOCX, TXT, image, or audio file and ask ARCUS to work with it. Documents are parsed, transcribed when needed, and fed into the conversation as context. No more pasting walls of text into a chat window.
How it works
A conversational onboarding builds your profile from the way you describe your work. No checkboxes, no taxonomy to memorize.
Use the global chat for one-off questions. Spin up a workflow when a piece of work has its own rules, its own format, or its own history.
Your profile, your workflow context, and any documents you've uploaded all get prepended to every message. You write the question. ARCUS handles the setup.
Pricing
Every plan starts with a 7-day free trial. No credit card required to begin.
Starter
For occasional support with small tasks.
200,000 tokens / month
Professional
For daily clinical work.
1,000,000 tokens / month
Maximum
For a true AI assistant across your whole workflow.
2,500,000 tokens / month
All plans include a 7-day free trial with 50,000 tokens. No credit card required.
Security and HIPAA
ARCUS One is built on infrastructure that supports HIPAA compliance from the ground up. A BAA is available before you store any ePHI.
TLS 1.2+ on every connection. AES-256 at rest, with keys managed by your cloud provider's KMS.
Authentication, data access, document uploads, and admin actions all land in an append-only audit log retained for six years.
Sign a Business Associate Agreement before you store any ePHI. BAA acceptance is built into the paid signup flow.
Identifiers and hashes only. No names, no DOBs, no medical content in application logs or error messages.
Sessions expire after 30 minutes of inactivity. Identity is managed by Clerk, with role-based access on every route.
Before the first file upload, you confirm BAA coverage and authorization. The acceptance is timestamped in your account.
50,000 tokens. No credit card. Five minutes to set up.
