Your guides keep working
Same product, same account, same database — only the name on the door changed.
- Every guide link and QR code stays live
- Nothing to re-print, re-share or re-send
- Your login and saved content are unchanged
Serenia Labs is now CohostAIAI guest guide for Airbnb, Vrbo & vacation rentalsSee a real guest guide
Turn your Airbnb listing into a guest guide in minutes.
Paste your listing link. Guests get check-in, Wi-Fi, parking and local picks on one page — and answers to their questions, 24/7, from the details you confirm.
Works with Airbnb, Vrbo and Booking.com listing links.
Serenia Labs is now CohostAI
We started by writing arrival guides for you. Hosts kept telling us the guide was only half the job — guests still text. So the guide grew into an AI cohost that answers them, from your property's own verified details. This is that product. Everything you built on Serenia Labs is already here, and paying hosts keep the price they signed up at.
Your guide became a cohost
It no longer just shows guests information — it answers them, and shows its work.
- Property Brain: every answer carries its source
- Guest Q&A, with a handoff to you when unsure
- Reply drafts in your voice, ready to send
- Set up a property straight from its listing link
Your plan, upgraded free
Paid Serenia Labs hosts move onto the CohostAI plan automatically.
- Every CohostAI feature unlocked — no new tier
- You keep the price you pay today
- The same subscription — nothing to cancel
- No re-subscribing, no action needed
Do I need to send my guests a new link?
No. Guide links and QR codes are unchanged, including ones already printed or sitting in a booking message. Anything you have shared keeps resolving to the same guide.
Will my price go up?
No. Existing paid subscriptions are grandfathered: you stay on the price you signed up at, and every CohostAI feature is included at that price.
Do I have to move anything across?
No. Serenia Labs and CohostAI are the same service — one account, one database. Your properties, guides and settings are already there; sign in the way you always have.
One guide, every day of the stayOpen the real sample guide
It knows what day it is.
The first screen changes with the stay — the same guide, without the scrolling.
Door code, parking and Wi-Fi first. Everything else waits its turn.
Bird LaneArrival day
Welcome, David.
Everything for arrival, in the order you’ll need it.
First up
Get inside
From Stanley
“The deck is the best seat in town — the rocks glow about twenty minutes before sunset.”
The house
How things work
Explore
Stanley’s picks nearby
Leaving
Checkout 11:00 AM
How It Works
From your listing to their guide in minutes.
Bring the listing
Paste the link. CohostAI reads the photos, amenities, rules and area and drafts the guest companion.
Confirm what matters
Access, Wi-Fi, parking and checkout. Only the details a guest would be stuck without.
Preview the real guest view
See exactly what a guest sees on their phone before anything goes live.
Publish and share
One link and QR code. Guests get answers; you hear only about what needs you.
Built by a Sedona Superhost
Built on my own Sedona Airbnb first
CohostAI runs on my own Sedona Airbnb — real guests, real 11pm questions.Every feature exists because it saved me time as a host or made a real guest’s stay better.If it doesn't work on my own property, it doesn't ship.
— Stanley, Founder & Sedona Superhost
SuperhostGuest favoriteTop 1% of listings
This home is in the top 1% of eligible listings based on ratings, reviews, and reliability
Simple Pricing
One AI guest guide. $9/month per property.
No credit card to build or test. Choose monthly—or save with annual—only when you publish for guests.
Build & preview free
CohostAI
$9/month per property
One AI guest guide that prepares guests before arrival and helps throughout the stay.
- Property Brain for one property
- Guest Q&A with source-backed answers
- Guest guide link + QR code
- Reply drafts you copy or send
- AI-ranked local recommendations + host picks
- Personal day & multi-day trip plans
- Multi-language support + guest analytics
Pay annually: $79/year per property (save $29). Add or remove guest guides anytime.
Need a custom plan? Contact us.
For property managers
For property managers →Running a portfolio of 2+ properties?
Bring your whole portfolio in from a spreadsheet — every property gets its own cohost, plus a private branded guide with a link and QR code you share however you already message guests.
FAQ
Questions hosts ask before signing up
Straight answers from a fellow superhost — no marketing fluff.
Does this comply with Airbnb’s terms of service?
Yes. Airbnb’s policy explicitly permits optional apps that facilitate a guest’s stay — concierge apps are their own example. You share your guest guide link through Airbnb messages, SMS, email, or a QR code, the same way you share arrival info today.
Will my guests know it’s AI — and is that a problem?
Yes. Guests see a clearly identified assistant in their guest guide. It answers from your property information and leaves sensitive or unconfirmed questions for you. It does not impersonate you in Airbnb, Vrbo or Booking.com message threads.
Does it message guests on Airbnb or reply as me?
No. CohostAI answers questions 24/7 on your guest page. The current Hospitable Connect integration cannot read Airbnb messages, receive inbound message events or send conversational replies; it supports template delivery only. Share the guide link with guests so they can ask questions there.
Can I edit or customize what the AI says?
Yes. Add favorites, write host tips, remove anything you don’t love, and pin your top picks with a Host Pick badge. Your guest guide only answers from what you’ve saved and confirmed.
What if the guest guide doesn’t know an answer — will it make something up?
No. It answers only from your Property Brain, so it won’t invent details. If something’s missing, it says so, points the guest to you, and you can add the answer in a tap.
Still have questions? Email our team — we reply within a day.
Give guests one page with reliable answers, 24/7.
Start with your listing, confirm the private details, and preview the complete guest experience.