ES
Bai OS

An idea matters when it moves with you.

Save it. Bai organizes it. Find it.

Where you already are.
On WhatsApp and the web.

Try Bai Go 9 days free → Then $9/month

Sign in with Google Bai lives on your WhatsApp Done in minutes

Everything in one conversation that never starts over.

"Hey Bai, how's the restaurant p"

→

Agent reactive

Gets it done, right when you need it.

Powered by Gemini · Google

Brain proactive

Anticipates what's next and keeps you moving.

Powered by Claude · Anthropic
One brain · Two windows

Talk to it on WhatsApp. Open Space when you want to think.

WhatsApp is enough — talk, forward, ask, recall. Space is the same brain on a bigger canvas: same memory, more room to think.

A WhatsApp / self-sufficient · save, ask, get answers
B Space / same brain · cleaner view, more room to think
Memory › This week
Search · "Atlas"
Sort · Recent L

Fresh from your WhatsApp thread

2 items · updated 2 min ago
Project · Brief Atlas Tomorrow 10am MARÍA · ATLAS

Atlas · Brief for tomorrow's sync with María

Last sync (Aug 12) flagged 2 blockers. Pricing memo overdue 9 days. María waiting on legal review and v2 wireframe feedback.

Last sync Aug 12 12 days ago
Open items 4 2 yours · 2 hers
Overdue 9 days pricing memo
Updated · 3:40 PM · from WhatsApp Open thread →
LC
Voice note · 0:05 3:39 PM · WhatsApp
0:05
"Hey Bai, I have the Atlas meeting with María tomorrow — give me a rundown of what's pending and what I owe her."
Bai noticed
Last time you discussed Atlas, María flagged two blockers . One's been open 9 days — want to unblock it before tomorrow's call?
A · WhatsApp Self-sufficient. That's the point. Save anything — voice notes, links, photos, receipts. Ask Bai anything back. Search, summaries, follow-ups, all in the chat. You never need to leave to make it work.
B · Space Same brain. Easier on the eyes. When you want to sit with everything — read a long article, scrub a meeting, browse what you've saved — Space gives the chat room to breathe. Same memory, more comfortable surface.
· Either, both, neither No app. No new habit. Use just WhatsApp forever — Bai works fully there. Open Space the days you want a wider view. The brain is the same on either screen; you choose where to spend the time.
Strengths · Shadow loops

You think differently. BAI keeps up.

Your strengths got you here. Your patterns keep you back.

· · ·
YOUR STRENGTHS ✦ Visionary "I give shape to everything"
YOUR SHADOW LOOPS ✧ Perfection loop "It's never ready"
I've rewritten this intro 6 times. Still not right.
Y
B
Version 2 and version 5 are your strongest — they match the tone you set last week. You're editing in circles now.
One more pass, I think I can nail it.
Y
B
You said that 2 versions ago. This isn't improving it — you're avoiding finishing it. Version 5 is ready. Want me to send it? ✓
YOUR STRENGTHS ✦ Analyst "I understand the problem"
YOUR SHADOW LOOPS ✧ Overthinking loop "I can't stop analyzing"
I found 3 more articles about the best CRM for small teams. I'm saving them.
Y
B
That's 47 articles in 2 weeks. You've narrowed it to HubSpot and Pipedrive 4 times, then restarted the search. Same loop again.
I just want to be sure.
Y
B
Being sure isn't possible. Being informed is — and you already are. Pick one, and test it for 14 days. If it's wrong, you'll know fast. Want me to set up the trial? 🎯
YOUR STRENGTHS ✦ Protector "I take care of everyone"
YOUR SHADOW LOOPS ✧ Overcommitment loop "Everyone's fine... except me"
Can you add to my Saturday: help mom with groceries and drive Leo to practice.
Y
B
That makes 6 commitments this Saturday. You also have your own doctor's appointment — the one you've already moved 3 times.
I'll move it again, mom needs me.
Y
B
You've put yourself last every weekend this month. Your appointment was urgent 3 weeks ago — it's more urgent now. You need to keep this one. 💛
YOUR STRENGTHS ✦ Leader "I've got this"
YOUR SHADOW LOOPS ✧ Procrastination loop "I'll do it tomorrow"
I reorganized my desk, cleaned my inbox, and updated my phone. Productive day.
Y
B
None of those was on your priority list. The investor email is still in drafts — day 3. Want to send it now while you're on a roll?
I'll polish it a bit more tonight.
Y
B
You said that yesterday. The draft is solid — I checked it against your notes. Sometimes "polish" is just another word for "postpone." Send? ✉️
What BAI handles

BAI handles what matters to you.

With context. With memory. Without asking twice.

📋

Projects

Tracks progress without you checking in.

💡

Ideas

Captures now, connects later.

❤️

Wellness

Remembers your habits, not just your requests.

👨‍👩‍👧

Family

Coordinates so you don't have to.

✈️

Travel

Plans around what you actually like.

💰

Money

Knows who owes you. Follows up.

...and anything else you can think of. Just ask.

Three steps · One conversation

As simple as

💬

You talk

Type or voice. In your words, at your pace.

🧠

BAI understands

Context, ties, and priorities. Connects what it hears with what matters.

✅

You move

Organized, informed, and on time.

All in WhatsApp.
No apps. No micromanaging.

Beyond AI

You don't need another app.
You need something that works.

Productivity apps need you to be organized just to organize yourself.

BAI starts where you are. Not where you should be.

What people say
C

Carlos M.

entrepreneur

"It's like having a chief-of-staff in my pocket."

L

Laura S.

designer

"I capture ideas while walking. Done."

D

Diego R.

student

"My classes are fully organized. I don't miss anything."

Pricing

Move forward without losing anything.

Prices in USD.

9 days free
Bai Go 9 days free

Your external brain on WhatsApp.

$ 9 USD/month

9 days free · then $9/month

Includes
  • Notes: create, search, archive, tag
  • Audio, images & voice transcription
  • Saved views, statuses & custom tags
  • Google Calendar — view & create events
  • Proactive reminders when they matter
  • Plenty of room for your notes, audio and files
Try Bai Go 9 days free →
Our principles

BAI is a tool. A powerful tool.

BAI exists to help you make the most of your potential — your ideas, your talents, your ability to make and act on decisions. It stores, analyzes, and communicates information in ways that feel natural, even empathetic. But it's not a person. It doesn't pretend to be one, even when the conversation feels like it could be. BAI won't replace your judgment, your intuition, or the people around you. It's designed to make you sharper, more organized, and more present — so you can show up better for the things and people that actually matter.

BAI is powered by the world's most advanced AI models — including technology from Google and Anthropic. It can make mistakes. But unlike most tools, when you correct it, it remembers. It learns from you to work better with you.

Built to serve human intelligence. Not to replace it.

— Luis & Nadia, Founders

Common questions

Frequently asked questions

Add Bai to your WhatsApp contacts and start texting it. Dictate ideas, send photos of receipts, audio from meetings, reminders — Bai stores them, organizes with tags, and finds them when you search. No new apps to open, everything inside the conversation you're already in all day.
Yes. When you sign up with Google, you get 9 days free of Bai Go. If you don't add a card before they end, your account pauses until you activate a plan.
Everything: notes with tags, audio & images, Google Calendar, proactive reminders, MCP Claude to connect your Claude.ai, 50 web searches per week, 999 active notes, and 9 GB storage. Weekly AI usage included.
Yes. Data is encrypted in transit and at rest on Google Cloud infrastructure. We never sell or share your information. You can export everything or request permanent deletion anytime from the portal.
Ready when you are

Wherever you are right now,
that's the perfect place to start.

Start my free trial →

Your move.