Use GPT, Claude, Gemini or an AI on your computer, in a browser tab; your history, files and memory stay on your device.
You shouldn’t need one app to chat, another for pictures, another for slides and another to read a PDF.
With the AI you choose, in your language.
sales.csv Which product grew the most over the year? Show it as a chart.
A lullaby in D major for Léa’s bedtime.
A quiz on the planets for my son, ten questions.
Sunday’s bike ride: 40 km around Annecy.
Five slides on our third quarter for Monday’s team meeting.
Calculate my savings over 10 years: 200 a month at 4% a year. Show it as a chart.
Our family tree, from Grandma Rose to the grandchildren.
Dinners for the week: four of us, vegetarian, under €60.
Minutes of today’s meeting as I tell it, with who does what.
An invitation to Léa’s 8th birthday, with a unicorn.
A watercolour of our street in spring.
A plan for the office move in March: who does what, and by when.
sales.csvWhich product grew the most over the year? Show it as a chart.
Juice grew the most: +169%
A chartDone in the cloudSent to gateway.aiCertificate ✓
A lullaby in D major for Léa’s bedtime.
A lullaby to play, print or keep
A scoreDone in the cloudSent to gateway.aiCertificate ✓
A quiz on the planets for my son, ten questions.
A quiz to play right there, with his score
A small appDone in the cloudSent to gateway.aiCertificate ✓
Sunday’s bike ride: 40 km around Annecy.
A route to follow, with its length
A mapDone in the cloudSent to gateway.aiCertificate ✓
Five slides on our third quarter for Monday’s team meeting.
Five slides, ready for Monday
Q3 results.pptxDone in the cloudSent to gateway.aiCertificate ✓
Calculate my savings over 10 years: 200 a month at 4% a year. Show it as a chart.
About 29,450 after ten years, 24,000 of it put in
A chartDone in the cloudSent to gateway.aiCertificate ✓
Our family tree, from Grandma Rose to the grandchildren.
A family tree to complete and print
A diagramDone in the cloudSent to gateway.aiCertificate ✓
Dinners for the week: four of us, vegetarian, under €60.
A week of dinners and its shopping list
A tableDone in the cloudSent to gateway.aiCertificate ✓
Minutes of today’s meeting as I tell it, with who does what.
Minutes, and the tasks they set
Minutes.docxDone in the cloudSent to gateway.aiCertificate ✓
An invitation to Léa’s 8th birthday, with a unicorn.
An invitation to print or send
Invitation.docxDone in the cloudSent to gateway.aiCertificate ✓
A watercolour of our street in spring.
A picture of your street in spring
A pictureDone in the cloudSent to gateway.aiCertificate ✓
A plan for the office move in March: who does what, and by when.
A plan to share with the team
Office move.xlsxDone in the cloudSent to gateway.aiCertificate ✓
Nothing to install. Any AI, ChatGPT included. Your history stays with you.
Export it, drop the file in a browser tab, and carry on any conversation with the AI you choose: a free one, one on your computer, or your own Claude or Gemini. Keep ChatGPT or cancel it. Your history no longer ties you down.
Your conversations, their titles and dates, and the files you shared come across. Pictures ChatGPT made, what its tools did, canvases and saved memories stay behind.
Every assistant calls itself personal now.
Theirs are personal because they read your chats, mail and photos on their servers. Jean is personal because what it holds stays with you.
| In most AI apps | With Jean | |
|---|---|---|
| Your history | On their servers, in your account with them. | On your device, encrypted, with no Jean account. |
| What it knows of you | What it gathers from your chats, and from the mail and photos you connect. | A memory page you read and change, in plain words. |
| When you leave | Your history stays in their app. | Bring your history from other assistants, and take everything with you as plain files. |
The AI you choose reads what each request sends it, and nothing else.
Each promise starts with why it matters. Open any of them for the whole story.
Confidential
What you most need help with is often what you’d rather keep to yourself: a payslip, a medical letter, a contract.
Turn off Wi-Fi and it still answers, on a computer with 12 GB of memory.
Your AI
AI changes every month, and you may already pay for one.
Ready for a family
Over half of US teens use AI for help with schoolwork, yet only about half of parents say their teen uses it at all.
Pew Research Center, 2026
Simple
Most AI apps make you learn them first.
Shareable
A shared conversation is usually a copy the company can read.
A password if you like · 30 days or a year
Open
Apps change their rules, or close.
MIT licence, about 40,000 lines. Open standards, any AI, plain files.
The catch
Every tool has one. Here’s Jean’s.
With the AI on this computer, yes. Start for free asks for a free OpenRouter account.
Yes, and with Word, PowerPoint, photos and whole folders. It hands back finished files too: a chart, a table, a document in Word.
On a phone, yes, in the browser. Offline, with the AI on this computer, which needs 12 GB of memory and a recent graphics chip: not on phones.
Yes, and Copilot’s: Jean uses the plan you already pay for, through this computer. No second subscription.
Yes. Numbers are calculated rather than guessed, and under every answer it says where it was done. Check the words, as you would a colleague’s.
If your company gives you no AI, it works as it is. If your computer is managed, ask your IT: Jean is deployed like a web page, behind your company’s gateway and sign-in.