Artemii
A calm, capable assistant that writes, researches and builds with you, and works across your Mayfair apps. Run on infrastructure Mayfair controls.
Four models. One for every kind of task.
Choose how much thinking you want before an answer. Switch at any time, even in the middle of a chat.
Arlo 3.2
The default.
Our fastest, friendliest model. It answers straight away with light thinking, which suits chat, short questions, rewrites and everyday help.
Lucian 3.5
For hard problems.
Our deepest thinker. It takes longer to answer, but works through difficult maths, logic, planning and multi-step problems with more care.
Orion 3.0
For research and analysis.
Our research and analysis model. It is built for analysing the sources, documents and data you give it, structuring findings and keeping track of what is known and what is not. With web search switched on, it can also search the web, read pages and run deep research reports.
Curzon 3.1
For design and coding.
Our design and coding model. It builds web pages, apps, scripts and interface designs, and fixes and explains code.
More than a chat window.
Artemii keeps the things you make, remembers what you ask it to, and stays out of your way.
Artifacts beside the chat
Documents, web pages, designs, code and sheets open in tabs next to the conversation, with version history.
Projects
Group chats with files and standing instructions, so the AI starts every conversation already briefed.
Memory you control
One memory shared with your Mayfair apps. Read it, edit it, delete it or switch it off.
Search and research
Answers with numbered sources, and deep research reports. Available on request
Images
Describe a picture and get one. Kept privately, deleted after a while. Available on request
Voice
Talk to Artemii out loud in a full-screen voice call, in your browser.
Connectors
Connect your own services, such as GitHub or any MCP server. Changes ask first. Available on request
Incognito and permissions
Chats that are not saved, and a screen where you decide what each service may do.
Sharing links
Share a chat or one artifact read-only, and revoke it whenever you want.
Ask for it. Watch it appear.
Ask for a landing page, a design, a script or a budget. It opens beside the chat, ready to preview, edit, copy, download or share.
- Live preview of web pages and designs, with desktop, tablet and phone views
- Every change is a new version you can go back to
- Ask the AI to change it, or edit it yourself
Like a copilot for every Mayfair app.
The same assistant, the same memory and the same plan, inside the apps you already use. Mayfair apps can show Artemii in a side panel, tell it what you are looking at, and let it act for you, with your approval.
- One script tag adds the assistant to an app
- Shared memory across apps, with a switch for each one
- Actions inside an app run as you and ask before they change anything
An API that speaks OpenAI.
Point an OpenAI client at the Artemii base URL and use Arlo, Lucian, Orion or Curzon. Stream answers, call your own functions, and use Mayfair ID tokens in the browser.
curl https://mayfair-ai.crelloo.workers.dev/v1/chat/completions \
-H "Authorization: Bearer $ARTEMII_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"arlo","messages":[{"role":"system","content":"Answer in one sentence."},{"role":"user","content":"What is Mayfair?"}]}'Artemii in Chrome.
A side panel that can read the page you are on and act on it, only on sites you allow. It never types passwords or card details, asks before anything risky, and has a Stop button.
You decide what it can see and do.
Artemii runs on rented GPU servers that Mayfair controls, and your chats are stored in Mayfair's own database, not sent to a third-party AI service to be answered.
- Incognito chats that are not saved to memory or history
- A permissions screen and an activity log for every connected service
- Export or delete your data, or revoke everything in one go
- No advertising trackers, no third-party scripts
Your own AI
Open-weight models, adapted and configured by Mayfair.
Your data
Stored in Mayfair's database. Not used to advertise to you.
Plans are coming soon.
Starter, Plus, Pro, Max, Business and Enterprise are on the way. Every plan shows one daily and one weekly percentage meter.
Starter
Try Artemii
Plus
Everyday use
Pro
For heavy users
Max
For heavy daily work
Business
For teams
Enterprise
For organisations
Quick answers.
What is Artemii?
How do I sign in?
What is the difference between Arlo, Lucian, Orion and Curzon?
Why did my first message take a while?
How old do I need to be?
Artemii is made by Mayfair, the company behind Mayfair ID and the infrastructure it runs on. About Mayfair.
Start with Artemii
Sign in with your Mayfair ID and ask your first question.