Founders and business owners
Investors, hiring, customers and product, all in the same week.
Proactive personal AI assistant
Every model. All your tools. One assistant that runs your day.
You don't have to keep track of everything. Sezio reads the Gmail, Outlook, calendar, Drive, OneDrive and Jira accounts you connect, notices what needs you at work and outside it, and puts the model best suited to each job on it. Talk to it like any chat model. It already knows your day. Nothing goes out without your approval.
Founding member offerJoin before launch and your first three months on any paid plan are half price.
- GmailThornbury asks for a revised proposal
- Google CalendarThursday 2:00 PM · Thornbury review
- JiraSEZ-142 · stuck for 7 days
- NotesAug 12 call · 10% discount agreed
- DriveProposal_v2.pdf · last edited by you
One topicThornbury proposal, before Thursday
Five sources, one thread. The reply is drafted with the discount you agreed and the ticket that is blocking it.
Reply drafted · sends when you approve
ApproveEditNot now
Nothing goes out without your yes.The work around the work
Your tools remember everything. None of them put it together.
A client emails asking for a revised proposal. You're meeting them on Thursday. The related ticket has been stuck in Jira for a week, and last month you agreed on a discount during a call nobody wrote down. Every piece is saved somewhere. Putting them together is still your job, usually at 11 p.m.
Sezio takes that job off your plate.
A day with Sezio
One Thursday, morning to evening.
Four moments from one Thursday, and one request. The same people, meetings and tickets run through this whole site, because it is one day, not a feature list.
See the whole dayDaily Brief
Your day, sorted before you open it.
Every morning Sezio hands you the day: what matters most, who you're meeting and what to prepare, the emails waiting on your reply, what's late or at risk, the people you should follow up with, and the one step that moves a bigger goal forward. When something changes at noon, the brief changes with it.
It doesn't buzz all day. It brings you the things that actually need you.
See what's in your briefThursday · 7:30 AM
Six things. Two are meetings you haven’t prepared for.
Prepare the Thornbury review2:00 PM · last decision and open questions attached
Client call has no agenda11:00 AM · three points suggested from last week’s notes
Reply to DanielOwed since Tuesday · draft ready
SEZ-142 is lateStuck for 7 days · ask Mark or reassign
Follow up with LauraQuiet for 6 weeks · you owe her an intro
One step on the Q4 plan45 min · focus block at 3:30 PM
Rebuilds itself when the day changes.
Planning
A plan that survives contact with your day.
Sezio plans your day the way you would if you had the time: deadlines, how long things really take, the meetings already on your calendar, when you focus best, what you promised someone, and what you keep pushing to tomorrow. A meeting gets canceled, an urgent request lands, a task runs long, and it rebuilds the rest of the day around what's left.
It tells you what to finish first, what to hand off, what to postpone and what to let go.
See how planning worksRebuilt at 11:04 AM · client call canceled
Before
Focus block
Client call
Thornbury review
Q4 plan
After 11:04 AM
Focus block
Q4 plan
Thornbury review
Kept free
DoDeferDelegateDrop
Asked before touching the Thornbury promise.
Follow-through
What you promised. What you're owed.
Say “I'll send it Friday” in a conversation and it's on your list, with the reason attached. Sezio pulls decisions and tasks out of your meetings, watches what's overdue, keeps what you're waiting on from other people in its own place, and reminds you before it turns into an apology.
“I’ll send it Friday.”You, on Tuesday’s call
Send the Thornbury proposalFriday · reason: promised on the call
Today 4:00 PM · due tomorrowDraft attached, discount included
Waiting on others
Contract from legal4 days · nudge drafted
Outside work
Not everything that matters is work.
Maya's birthday is nine days away and there is no gift yet. Sezio remembers that in March she said she missed pottery, knows last year's present went back, and brings three ideas that fit what you usually spend. Say yes and the class is booked. Renewals, appointments, trips and the people you care about get the same attention as your inbox.
It asks before it books, buys or sends anything.
See Sezio outside workThursday · 7:40 PM · outside work
Maya’s birthday is in 9 days. No gift yet.
“I miss doing pottery.”Maya, in March · last year’s gift went back
Three ideas
Pottery class for twoSaturday morning · ten minutes from home · within what you usually spend
The ceramics book you noted in JuneFrom your notes · arrives in two days
Dinner where you had your anniversaryA table for two is free that evening
Book the pottery class?
ApproveEditNot now
Also this month: the car insurance renews on the 30th.
When you askActions
You approve. Sezio does the legwork.
Ask for a meeting with Adam next week and Sezio finds the time, drafts the invite, sends it once you approve, digs through your past conversations and hands you a short brief before the call. It writes the emails, creates the tasks, pushes what came out of a meeting into the tools you use, runs the research, and checks afterward that it actually happened.
Every step that leaves Sezio waits for your yes.
See what Sezio can do for youYou
Set up a meeting with Adam next week and get me ready.
Sezio
Found Adam · Thornbury, last met in June
Three open slots · Tuesday 10:00 AM fits both
Invite drafted
Brief ready · two open questions
Send the invite to Adam?
ApproveEditNot now
Afterwards it checks the meeting happened, and asks what’s next.
Also in Sezio
The rest of what it keeps straight.
Six more parts of the same assistant. Each one has its own page.
Chat
Ask anything the way you would ask any AI chat. It answers from your calendar, inbox and notes, and turns what you say into work.
See the pageConnected context
The email, the meeting, the ticket and last month's decision arrive as one topic, with the next step already drafted.
See the pageMemory
Goals, people, preferences and promises, kept with your permission. You can see, correct or delete every item.
See the pagePeople & meetings
Before a conversation: when you last spoke, what was decided, what you promised and what is still open.
See the pageWriting & research
Emails, summaries, reports and sourced research, written from the context Sezio already has, by the model that suits the job.
See the pagePersonal life
Birthdays, renewals, appointments and trips, remembered in time and never booked without your yes.
See the pageThe system
Five parts, one loop.
This is what sits between your tools and your day.
- 01
Context
Sezio reads what you connect and links the pieces that belong together: the email, the meeting, the ticket, the decision.
- 02
Memory
It keeps what matters about you, goals, people, promises, how you like things done, and shows you all of it. Change it, delete it, tell it to forget.
- 03
Judgment
It works out what needs you today, what can wait, and what you owe someone else.
- 04
Action
It drafts the email, finds the slot, files the task. Nothing leaves without your yes.
- 05
Follow-through
It checks that what started actually finished, and says so when it didn't.
Why Sezio, when ChatGPT, Claude and Gemini exist
The assistant that runs your work. The models just do the thinking.
The answers got good. The follow-through didn't. AI now does five hours of work in thirty minutes, yet the day is no lighter: we produce more and lose sight of what matters. ChatGPT, Claude and Gemini are remarkable at answering what you ask. They are not built to know your Thursday, to remember what you promised in June, or to notice that a client has gone quiet. Sezio is. It holds the context, the memory and the permission to act, and puts the right model on each job. You talk to Sezio, and it decides which model does the work.
- Starts when you type.
- Starts with your day.
- Knows what you paste in.
- Knows what you've connected.
- Forgets between chats, or remembers loosely.
- Remembers what matters. You edit it.
- Gives you an answer.
- Gives you the next move, does it with your approval, and checks the result.
- One model.
- The right model for the job, including that one.
- A chat window.
- Your work and your life, tracked end to end.
- Helps you do more.
- Keeps you on what matters, and steers you back when you drift.
Sezio runs on its own models, trained to read a situation and strong in languages like Turkish. When a job needs a frontier model, Sezio picks the one that suits it. You never have to think about which model to use.
Sezio
GPT
Claude
Gemini
Grok
Kimi
GLM
MiniMax
DeepSeek
Qwen
Xiaomi MiMo
Mistral
NVIDIA Nemotron
Meta Muse
Gemma
Works with
The tools you already use.
One assistant across Google and Microsoft, and the tools in between. Connect what you want. Nothing connects quietly.
Connected today
Gmail
Outlook
Google Calendar- Outlook Calendar
Google Drive
OneDrive
Jira
Google Contacts- Outlook Contacts
Next
WhatsApp
Telegram
Slack
Notion
Microsoft Teams
Zoom
Google Meet
Confluence
Asana
ClickUp
Dropbox
Box
Today, Sezio lives in its own panel. Telegram and Slack are next, and email is an option.
Trust & control
Nothing happens without your yes.
You choose which tools Sezio can read, and you can disconnect any of them. Every suggestion tells you why it was made and where it came from. Everything Sezio remembers can be seen, corrected or deleted, and sensitive topics stay behind a separate door.
- You choose which tools are connected.
- Every suggestion shows its source and reason.
- Memory is visible, editable and deletable.
- Anything that leaves Sezio waits for your approval.
Who it's for
For people who hold a lot of threads at once.
Six kinds of people, one situation: many obligations, many people, scattered tools. At work and outside it.
Executives and team leads
Back-to-back meetings, and decisions that need last month's context.
Consultants and freelancers
Several clients, several inboxes, one of you.
Professionals in busy teams
A full calendar, a ticket queue and an inbox that never quite empties.
Researchers, academics and students
Sources, notes, supervisors and deadlines that need to come together.
Writers and creators
Research, drafts and ideas that stop getting lost between chats.
Where this goes
One person. Then a team. Then a company.
Sezio starts as one person's chief of staff: it knows your priorities, keeps your agenda, gets you ready, closes things out. Shared briefs and shared memory come next, with a clear line between what's yours and what the team sees. After that, what a company needs to run it on its own terms: admin, roles, its own setup, data residency, an audit trail.
The models will keep changing. The context you build in Sezio won't start over.See Sezio for organizations
Let Sezio keep track.
Join the waitlist and we'll email you when access opens. No account, no payment.
Founding member offerJoin before launch and your first three months on any paid plan are half price.
- A brief every morning at 7:30 AM
- Follow-through on what you promised
- Nothing sent without your yes