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Say it your way
Type or talk in English, Arabic, German, Spanish, Ukrainian or Russian. Add a photo, a PDF or your screen when words are not enough.
LEX AI OS
Your AI that remembers you — and gets things done.
One personal AI for your browser, Windows, Android and Linux. It keeps a memory you control, understands your files and photos, and turns what you ask into reminders, research and finished work.
Plans from €14.99/monthCancel anytimeSix languages
Available on
Browser
Windows
Android
Linux
Smart glasses
Coming soonmacOS·iPhone & iPad
How it works
Ask once. LEX takes it from there.
No commands to learn. Speak or type the way you would to a person.
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It remembers what matters
Preferences, people and decisions go into your personal memory — and you can review, edit or delete any of it.
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It gets it done
Reminders, research with sources, translations, summaries and plans — delivered in the same conversation.
Memory
It knows the context, so you don't repeat yourself.
LEX keeps a private memory of what you tell it and brings it back when it helps. Everything it keeps is visible to you.
- Remembers preferences, people and plans
- Recalls earlier conversations on any of your devices
- Review, edit or delete any memory
Real work
From a question to a finished result.
Answers with their sources
LEX searches the web, compares what it finds and shows where each fact comes from.
An interpreter in the conversation
Speak in one language and LEX answers in another — for a conversation across a table or a document you need to understand.
It sees what you see
Share a photo, a PDF or your screen. LEX reads it, explains it and pulls out what you need.
Plans that keep track of themselves
Break a goal into steps with dates. LEX keeps the list and reminds you before each one.
Specialists
When a task needs an expert, LEX brings one in.
Behind LEX is a network of specialists for real work — from financial analysis to market research. LEX picks the right one and checks the answer before you see it.
11,000+specialists, each tested before it went live
Financial analystInterpreterMarket researcherTravel agentParalegalNutritionistProject manager
Included in every plan, within its monthly allowance for research and agent tasks.
Every device
Start on one screen. Finish on another.
One account and one memory on every device you sign in to. Your conversations come with you.
- The same LEX in the browser, on Windows, Android, Linux and smart glasses
- Pick up any conversation where you left off
- 3, 4 or 6 devices, depending on your plan
Privacy and control
Your memory belongs to you.
LEX is built around one rule: you decide what it keeps and where it lives.
You choose where it lives
Cloud, local or hybrid — and you can change it at any time.
Nothing hidden
See everything LEX remembers. Edit it, export it or delete it.
Never sold
Your personal data is never sold and never used for advertising.
Every device in view
See each device signed in to your account and remove any of them.
Plans
Choose how much LEX you need.
Every plan includes memory, voice, vision, translation and specialists, each with a monthly allowance. Prices in euros. Cancel anytime.
LEX Personal€14.99/month
Priced to maximize access — everything you need to meet LEX and make it part of your day.
Get startedMost popularLEX Pro€29.99/month
The flagship LEX — for everyday life across all your devices.
Choose ProLEX Enterprisefrom €149.99/month
For organizations — scales with seats, with shared knowledge and commercial support.
Contact sales
Meet the AI that actually knows you.
Download LEX and start building a companion that remembers, understands and grows with you.