AI-enabled websites
Websites with intelligence built in: site-wide answers from the client's own content, personalised pages, lead qualification and booking without a human in the loop.
For agencies
White-label by default
UK-briefed · India-built
We become your agency's AI & automation backbone.
Your clients are asking for chatbots, voice agents, AI-enabled websites and “can we automate this?”. We're the production team that builds all of it — scoped by our UK business analysts, engineered by our team in India, and delivered under your brand.
- Innovate UK grant winner
- One UK point of contact
- Packages from $1,000 · AI tokens included
“Can our site answer questions about the menu?”
“We need WhatsApp support that actually helps”
“A voice agent for after-hours bookings”
“Automate the monthly reporting”
“Personalise the homepage per visitor”
“A lead-qualifying bot for the property listings”
“Turn the brochure library into an AI concierge”
“Push HubSpot leads to sales in Slack”
“Can our site answer questions about the menu?”
“We need WhatsApp support that actually helps”
“A voice agent for after-hours bookings”
“Automate the monthly reporting”
“Personalise the homepage per visitor”
“A lead-qualifying bot for the property listings”
“Turn the brochure library into an AI concierge”
“Push HubSpot leads to sales in Slack”
Why agencies come to us
Same team.
On a freelance platform every project means a new stranger — new standards, new habits, new onboarding. With Sonti it's the same team every time. The analyst who scoped your last build scopes the next one, and the engineers already know your clients.
UK-based.
You contract with a UK business, and the team understands what UK, US and European clients actually need — GDPR and data residency, accessibility, the tone that lands in each market. Your client's requirements never get lost in translation.
Tech-led.
We build with the latest tools and models, chosen for the job rather than by habit. That makes every build efficient twice over: fewer hours to ship it, and fewer tokens to run it once it's live.
What we build for your clients
Almost every request an agency forwards us fits one of these six. Bring the ask however rough it is — we'll tell you which one it is, and what it takes.
Chatbots & AI assistants
Assistants trained on the client's products, policies and FAQs — on the website, WhatsApp or Messenger — that hand off to a person the moment it matters.
Voice agents
Phone agents that answer, book, reschedule and qualify — on UK numbers, in natural voices, logging every call to the client's CRM. Inbound, outbound or both.
Workflow & marketing automation
The unglamorous work that eats agency hours: lead routing, CRM hygiene, reporting, onboarding sequences, approvals — automated across the tools the client already pays for.
AI content & data pipelines
Content at scale with guardrails — product descriptions, localisation, briefs — plus the data plumbing behind it: feeds, enrichment, deduplication and dashboards.
Custom AI integrations
When the ask doesn't fit a box: internal copilots, document processing, models wired into the client's own systems. Scoped properly, built once, documented for whoever comes next.
What it looks like when it's live
Eight things we've built, as their customers meet them. Not one of these is a mock-up — hover to pause the strip and look further down any page, click to open the live site.
KairooA screen-time deal a parent and child sign together, kept by the app. Both apps, the backend and the website.App + backend + websiteOpen ↗
Leonardo PowerWebsites that answer the phone, remember who called and book the job. Eleven live.AI-enabled websiteOpen ↗
SignalA white-label AI receptionist an agency resells as its own. Live in twelve minutes.Voice agentOpen ↗
NexusPortalA branded CRM front end over GoHighLevel — SMS, email and WhatsApp in one thread.White-label CRMOpen ↗
ViYu HubBookings, guest messaging, payments and a voice receptionist for serviced accommodation.AutomationOpen ↗
Oliver EmbroideryA 3,350-product workwear store with artwork upload, and a staff console behind it.Ecommerce + consoleOpen ↗
Knotie AIOne-click AI products — voice, chat, APIs, CRM — a partner sells and bills on their own domain.White-label AI platformOpen ↗
OpenFlowFree, private voice-to-text for macOS and Windows. Transcription runs on the machine and never leaves it.On-device voice AIOpen ↗
Hover to pause
The app, the backend and the website
Kairoo is a screen-time agreement a parent and child write and sign together, and an app that keeps it, so nobody has to be the bad cop. We designed both apps, built the backend they share and made the website families join from.
Screen-time rules a family agrees on, and an app that keeps them
Built for Kairoo · for families with children about 8 to 14 · live at kairoo.family
- App design
- Two apps, Kairoo Parent and Kairoo Kids. On the child's phone: today's plan, the deal they helped write, a heads-up before time runs out and credit for stopping on their own.
- Backend
- The service both apps run on. It holds each family's signed agreement and carries every ask and answer between the two phones.
- Website
- kairoo.family tells the story as one long scroll through illustrated scenes, from the bedtime argument to the signed agreement, the research behind it and early-access sign-up.
2apps, one on each phone
3kinds of ask: everyday, grey-area and big decisions
0messages read or places tracked
From your client's ask to a live build
Five steps, in this order, every time. You stay the face of the project; we stay the engine behind it. Three requests that came in this way:
Request 0417In build · India
Voice agent for appointment bookings
Request 0418Scoping · UK
Chatbot trained on 400 product pages
Request 0419Delivered
Monthly client reporting on autopilot
-
Brief
Forward us the client's ask — an email, a call recording, a napkin sketch. A UK business analyst turns it into a scope you can put in front of your client.
UK · business analyst -
Estimate
Within two working days your analyst tells you how many hours the build takes from your package and when it lands, written for you to mark up and pass on. Hours are agreed before any are used.
UK · hours agreed up front -
Build
A dedicated squad in India builds it — engineers, an AI specialist and QA — with progress waiting in your inbox every UK morning.
India · dedicated squad -
QA & handover
Tested against the scope, documented, and branded as yours. Your client never has to know we exist — unless you'd like us on the call.
UK + India · white-label -
Support
We stay on for fixes, model updates and the next request, drawing from the same package. Most agencies bring us the second project before the first has finished.
Ongoing · same team, same hours
Two offices. One accountable team.
UK analysts who speak agency, not code. Indian engineers who build to UK standards at Indian rates. That pairing is the whole business model.
United Kingdom
The front door
- Business analysts who scope, spec and quote every project
- One named point of contact for you and, if you want, your client
- Project management, client calls and sign-off in UK hours
- Contracts, invoicing and data agreements with a UK business
Your requests are taken, scoped and managed here.
India
The engine room
- Senior engineers, AI/ML specialists and QA in dedicated squads
- Daily progress, code reviews and testing managed to UK standards
- Rates that make one-off client projects worth saying yes to
- Working day starts four and a half hours before London's
Your builds are engineered, tested and documented here.
Send it at 5pm. Progress by 9am.
Working hours · UK summer time00:00
03:00
06:00
09:00
12:00
15:00
18:00
21:00
24:00
5h overlap
Brief before you leave
Anything you send by 17:30 is in the India squad's queue when their day starts at 05:00 UK time.
Five hours of overlap
09:00–14:00 UK is shared time for stand-ups, demos and decisions with the engineers, not just the analyst.
Winter shifts it earlier
When the UK leaves summer time, India is five and a half hours ahead: the day starts at 04:00 UK and the overlap is four hours.
OpenAIAnthropicTwilioHubSpotWebflowShopifyWhatsAppn8nMakeZapierNext.jsWordPressOpenAIAnthropicTwilioHubSpotWebflowShopifyWhatsAppn8nMakeZapierNext.jsWordPress
Three builds agencies sold as their own
A voice agent, an AI-enabled website and an automation — one of each, so you can see what the finished thing looks like before your client asks. Two of the three are live: signal.artificialignorance.io and leonardopower.com.
Incoming · 23:41Artificial IgnoranceAI receptionist · 00:38
CallerHalf my sockets have gone dead — is anyone out tonight?
AgentSorry to hear it. Has the consumer unit tripped, or is it only that circuit?
CallerOne switch is down and won't stay up.
AgentThat's a fault on the circuit. I can get someone to you first thing — what's the postcode?
✓Job booked · 08:00 · written to the diary
hover
Voice agentLive · signal.artificialignorance.io
A voice agent an agency sells as its own
Built for Artificial Ignorance · sold to UK trades and service businesses · live at signal.artificialignorance.io
- The ask
- They wanted an AI receptionist with their own name on it, on their own pricing, sold monthly — not a reseller badge on someone else's product, and not a year of building one.
- What we built
- Signal: a voice agent that answers on the client's existing number, trained on that business rather than the internet. It triages, qualifies, books into the diary during the call and hands over to a human when it should — shipped under the agency's brand, at the agency's prices.
<3spicks up, before the third ring
12 minfrom signing up to a live number
24/7including 23:41 on a Wednesday
KennelsPavingTraining
AI-enabled websiteLive · leonardopower.com
A studio's own site that answers the phone
Built for Leonardo Power · a UK web design studio · live at leonardopower.com
- The ask
- Leonardo Power sells small businesses a website that comes with a front desk. Their own site had to be the product rather than describe it — including for the visitor who lands at 2am.
- What we built
- The site, and the assistant that ships with it: it answers from every page in the studio's own words, writes each enquiry into the CRM with the pages that visitor read, and — once they confirm a code by text — rings their mobile and takes the call as the business.
11client sites live on the same stack
60 sfrom asking to your phone ringing
5callers answered at once
September · Northgate KitchensCommentary drafted · awaiting approval
Spend£18.4k
Leads312
Cost / lead£59↓ 12% vs Aug
Sending branded decks40 / 40
AutomationSample — replace
Monthly client reporting, out on day one
Built for a performance marketing agency · For their own operations team
- The ask
- Forty client reports a month, assembled by hand from Meta, Google Ads and GA4, landing on day five with commentary written at midnight.
- What we built
- A pipeline that pulls every account overnight on the first of the month, drafts the commentary in the agency's tone for an account manager to approve, and publishes branded decks.
120 hsaved every month
Day 1reports delivered, not day 5
40clients covered
Recognition
We won an Innovate UK grant.
One-Click Voice AI: Democratizing Enterprise Technology — a £49,800 grant awarded to Sonti Limited by Innovate UK, the UK government's innovation agency, part of UK Research and Innovation, under its Fast Start Response competition. Offer accepted 31 October 2025; the project ran to April 2026.
Innovate UK competitions are scored by independent assessors on how novel the technology is, how big the problem it addresses is, and whether the team can realistically deliver it. You don't win one on an idea. You win it by putting the engineering, the data and the numbers in front of people who build this for a living.
2025
Funded
The problem we were funded to solve
Voice AI that sounds human is no longer the hard part. Affording it is. The good models are metered by the minute and priced for contact centres, so the bill grows with every call a business takes — which is precisely the wrong shape for a four-person practice, a builder or a boarding kennels. The project takes the cost floor out: the same quality of conversation, at a price a small business can put on a monthly invoice without thinking about it.
- 01
Foundation models, adapted rather than rebuilt
We start from open foundation models and adapt them to the job, so the effort goes into the last mile — accents, trade vocabulary, interruptions, people changing their mind mid-sentence — instead of re-proving what the field already knows.
- 02
Speech data that sounds like the actual callers
Purpose-built training sets for both directions: text-to-speech that doesn't read like an American call centre, and speech-to-text that copes with regional accents, background noise and the words a trade customer actually uses on the phone.
- 03
Open-source LLMs on infrastructure we control
The reasoning layer runs on models we host. The cost per conversation doesn't move when a vendor reprices its API, and a caller's details don't have to leave the estate to be understood.
- 04
Network accelerators, because latency is the tell
Answer within a beat and a caller talks to it normally. Answer a second late and they know. Closing that gap is inference acceleration and the network path around it — not just picking a faster model.
That is the difference between voice AI being something an enterprise buys and something a plumber can.
The people behind your projects
A small UK team you'll actually talk to, and the engineering squads in India who build what they scope.
Avijit S.
Co-Founder & CTO
Sets the technical direction — which models, which architecture, and what we take on. Named lead on the Innovate UK voice AI grant.
Chao L.
Co-Founder & CMO
Runs positioning, partnerships and demand: how agencies find Sonti, and what they understand before the first call.
Soli S.
Business Analyst
Turns a forwarded client email into a scope with hours attached, then stays on it until the build matches what was signed.
Sushanta
AI & ML Lead
Model selection, fine-tuning, retrieval and guardrails — including the speech-to-text and text-to-speech datasets behind the Innovate UK project.
Soham
Head of Engineering
Runs the squads, the code reviews and the release calendar. Nothing ships without sign-off here.
Biswanath
Automation Lead
HubSpot, Make, n8n and the APIs behind them — the plumbing that makes a build part of how an agency actually works.
Is Sonti right for your agency?
We work best with agencies who own the client relationship and want a production team behind it, not a marketplace of freelancers to manage.
A good fit if…
- You've got live client requests for AI, chatbots, voice or automation you can't fulfil in-house
- You want to sell AI services under your brand without hiring engineers
- You're after recurring monthly fees — these builds need hosting, tuning and support, so the client pays every month instead of once
- You'd rather have one accountable UK contact than manage developers yourself
- You're happy to delegate the build and keep the client conversation
Not the right fit if…
- You want to hire a single freelancer by the hour and manage them yourself
- You don't have a project yet — though a 30-minute “what's possible” call is always free
- You want to direct the engineers day to day instead of working through a scope
Buy hours. Bring projects.
Three packages, priced in hours and nothing else. You tell us what needs building, our team tells you how many hours it takes, and then builds it. AI tokens are included, so there's no separate usage bill.
$1,000
25 hours · AI tokens included
Best for a first client request with a clear finish line — a chatbot on existing content, a single automation, a proof of concept.
- 25 hours of analyst and engineering time
- Tokens used to build, test and hand over included
- A UK analyst scopes every project before it starts
Works out at $40 an hour, all-in.
$2,500
80 hours · AI tokens included
Best for agencies with a few asks in flight — a voice agent plus the automations around it, or two clients' projects at once.
- 80 hours of analyst and engineering time
- Tokens used to build, test and hand over included
- Priority scheduling across your projects
Works out at $31.25 an hour, all-in.
$5,000
200 hours · AI tokens included
Best for agencies productising AI services across their client base and who want a team that already knows every account.
- 200 hours of analyst and engineering time
- Tokens used to build, test and hand over included
- A named squad that works in your tools and your brand
Works out at $25 an hour, all-in.
Every project is estimated in hours before it starts, so you always know what a build will draw from your package. Need more? Buy the next package and the work carries on with the same team.
Questions agencies ask first
The ones that come up on nearly every first call. Anything else, ask us on the call itself.
Is everything white-label?
Yes, by default. Scopes, decks, code, documentation and the finished product carry your brand. If you'd like us to join client calls, we come as your technical team. If you'd rather your client never hears the name Sonti, they won't.
Who owns the code and the IP?
You or your client, as set out in the contract — never us. Everything is handed over with source, documentation and admin access, so there's no lock-in to Sonti or to any single AI vendor.
Where does the data go, and is it GDPR-compliant?
You contract with our UK business, with a data processing agreement as standard. Builds are hosted in UK or EU regions unless your client specifies otherwise. Our engineers in India work under NDA with role-based access, and we can restrict production data to the UK team where a client requires it.
How quickly can something be live?
A scope and an estimate in hours within two working days of the brief. As a rule of thumb, a chatbot on a client's existing content is live in three to four weeks, a voice agent in four to eight, and a single automation in days. Your estimate gives the real number for your project.
Can my client talk to the developers?
Your UK analyst is the front door and joins every client conversation. When a technical question needs an engineer, one joins the call during the 09:00–14:00 overlap. You never have to translate between your client and a developer.
Which AI models and tools do you use?
Whichever fits the job. We build with OpenAI, Anthropic and Google models as well as open-source ones, and on the platforms your client already pays for — HubSpot, Shopify, Webflow, WordPress, Make, n8n, Zapier and the rest. Each scope names the stack and why.
What happens after launch?
Fixes to the agreed scope are included. Beyond that, monitoring, model updates and small improvements draw from your package hours like any other work, so the thing you sold your client keeps getting better instead of quietly going stale.
How do the hour packages work?
You buy a block of hours — 25, 80 or 200 — and bring us projects. For each one, your UK analyst tells you how many hours it needs before any work starts, and the build draws that from your package. Different projects take different amounts of time; the estimate is what you sign off, not an hourly meter.
What about AI usage costs — tokens and API bills?
Included. The tokens we use to build, test and hand over your project are covered by the package, and because we choose models and tools for efficiency, what we ship is cheap to run as well. There's no separate usage invoice from us.
What if a project needs more hours than I have left?
You'll know before it starts, because every project is estimated up front. If the estimate is bigger than what's left in your package, you buy the next package and the same team carries on — no re-briefing, no new faces.
Start here
Bring us your next AI request.
Forward the client's ask exactly as it arrived. A UK analyst reads it, replies within one working day, and tells you what it is, how many hours it takes and when it can land — before you've promised the client anything.
Received
Thanks — it's in the queue.
A UK analyst will read it and reply within one working day. If it's urgent, email hello@sonti.io.