The AI sales platform

AI agents that sell while you sleep

Celli builds and deploys AI sales agents that qualify leads, answer buying questions, book demos, and close, across web, WhatsApp, SMS, and voice. Every visitor gets your best rep, instantly.

No credit card required · Live in under 5 minutes

Your Agents
A
Amy
Feno · Oral health
Live
T
Tycoon
Shareland · Real estate
S
Share Mind
Expert network
I
Share Insights
Consumer research
A
Amy
● Online · responding in seconds
Message Amy…

Trusted by high-growth teams

Feno Shareland Spree instill 1440 SENSATE
Highlights

The complete platform for AI sales agents

Celli is designed for building AI agents that turn conversations into revenue, qualifying, recommending, and closing while lifting every business outcome.

Purpose-built for LLMs

Reasoning models tuned to resolve complex queries, recommend, and take action, not just answer FAQs.

Designed for simplicity

Create, manage, and deploy AI agents in minutes, even without technical skills. Describe the job and go live.

Engineered for security

Robust encryption, human handoff, and enterprise-grade guardrails on every conversation.

How it works

Conversational AI that gets things done

With Celli, your customers effortlessly find answers, resolve issues, and take meaningful actions through seamless, human-feeling conversations.

01.

Build & deploy your agent

Give it a soul and knowledge, configure the actions it can take, then deploy it across your channels.

02.

Agent handles your customers

It greets, qualifies, answers, and guides every customer to the right outcome, day and night.

03.

Refine & optimize

Test tone, offers, and flows. Learn from real conversations and keep improving over time.

04.

Route complex issues to a human

High-value or sensitive conversations escalate to your team without dropping the thread.

05.

Review analytics & insights

See what converts and why, with response time, resolution, and revenue in real time.

AgentAmy · Feno
ChannelWhatsApp
Status● Live
Conversations today1,284
Resolved without a human91%
Avg. first response4s
MonTueWedThuFriSatSun
Features

Build the perfect AI sales agent

Everything you need to train your perfect AI agent and connect it to the systems you already run.

Sync with real-time data

Connect to CRMs, order tools, and helpdesks so your agent can access live data, from order details to active subscriptions.

Take actions & automate

Configure actions your agent can perform in your systems, like updating a subscription or booking an appointment.

Compare AI models

Experiment with different models and configurations to make sure you have the best setup for your use case.

Smart escalation

Tell your agent in plain language when to escalate to a human via live chat or a helpdesk ticket.

Advanced reporting

Gain insights and optimize agent performance with detailed, real-time analytics.

Multilingual by default

Engage users globally with seamless language detection and translation in 80+ languages.

Works with your tools

Plugs into the stack you already run

Integrate diverse data sources and channels to enrich your agent's knowledge and reach.

WhatsAppTwilio SMSVoiceWeb ChatSlackSalesforceHubSpotZendeskStripeNotionZapierCalendlyMessengerAPI & Webhooks
Explore

Discover the Celli platform

One workspace to build, test, deploy, and measure every agent you run.

Playground

Design and test in real time

Shape your agent's voice, tune its instructions, and test conversations live before it ever talks to a customer.

  • Live preview of every change
  • Adjust tone, temperature, and model
  • Test edge cases safely
Agent configuration
Amy
ModelOpus 4
Temperature0.4
Response lengthConcise
Personality
friendlyconciseon-brand
Analytics

Know exactly what's working

Track resolution rate, response time, engagement, and revenue in one dashboard, per agent and per channel.

  • Resolution & conversion tracking
  • Per-channel breakdowns
  • Trends over time
Conversations resolved
Last 30 days
12,840
Conversations
91%
Resolved by AI
4s
Avg. response
Activity

Every conversation, searchable

Review the full history of what your agents said and did, with filters by channel, outcome, and escalation.

  • Full transcript logs
  • Filter by outcome
  • Flag & improve responses
Live activity
Updating
W
WhatsApp - order status
Amy - 2s ago
Resolved
C
Web chat - refund request
Amy - 40s ago
Escalated
S
SMS - product question
Tycoon - 1m ago
Resolved
V
Voice - booking
Amy - 3m ago
Booked
Sources

Train on your business data

Add docs, sites, help centers, and databases. Celli keeps your agent's knowledge fresh and in sync.

  • Docs, URLs, and files
  • Auto re-sync on changes
  • Connect live systems
Knowledge sources
4 connected
Help center
412 articles
Synced
Product docs
88 pages
Synced
Pricing sheet
Syncing 72%
Syncing
CRM
Realtime
Live
Actions

Let agents get things done

Configure real actions, book, update, refund, escalate, so your agent resolves instead of just replying.

  • Book & reschedule
  • Update customer records
  • Trigger workflows
Configured actions
4 enabled
book_appointment
update_subscription
issue_refundNeeds review
escalate_to_human
Benefits

AI agents that work like your best employees

Resolution-focused, on-brand, and always on, so every customer gets your best, every time.

Personalized experience

Your agent knows the logged-in user and retrieves their information for resolution-focused, 24/7 support.

Instant actions & automation

Agents don't just answer, they act, updating records and triggering workflows in your systems.

Empathetic & on-brand

Every reply matches your voice and values, so customers feel heard, not handled.

Smart escalations

Complex or sensitive cases route to the right human, with full context, no repeating.

Observability

See what your agents did and why, with transcripts, outcomes, and analytics you can trust.

91%
of conversations resolved without a human
4s
Avg. first response
24/7
Always available
80+
Languages supported
Faster resolution
Faster first response
91%
Resolved without a human
24/7
Always on
<5min
To launch an agent
In production

Agents already running live

Real agents handling thousands of conversations across sales, lead qualification, and onboarding.

A
Amy
Feno · Oral health

Guides WhatsApp conversations through education, social proof, and genuine care, converting and supporting Smartbrush and Oral Health Scan customers.

supportproduct-infolead-capture
T
Tycoon
Shareland · Real estate

Qualifies leads over SMS, delivers personalized market insights, and drives users to their first trade through proactive conversations.

qualificationengagementproduct-info
S
Share Mind
Expert network onboarding

Helps domain experts apply to the Share Mind network, vetting and onboarding them into a trusted community of specialists.

onboardinglead-capturefaq
Testimonials

What teams say

Built inside a venture lab running dozens of live agents across its portfolio.

★★★★★
"Celli let us stand up a real, on-brand agent in an afternoon, without the complexity we saw everywhere else. Customers report strong satisfaction and the team barely has to maintain it. It just keeps scaling with us."
M
Marketing Lead
Portfolio venture
★★★★★
"The agents are user-friendly, easy to customize, and have been serving our customers reliably. Onboarding was fast even with a lot of information to train on."
P
Product Owner
Consumer app
★★★★★
"For our end users the experience is smooth, the answers are accurate, and it significantly reduces friction. A practical, scalable tool we recommend."
C
CTO
Marketplace
Pricing

Plans that scale with you

Start free. Grow from your first agent to an always-on team across every channel.

Starter
$39/mo
For small teams getting started with AI agents.
  • 1 AI agent
  • Up to 1,000 conversations/mo
  • Web, SMS & WhatsApp
  • Email support
  • CRM integration
Build your agent
MOST POPULAR
Professional
$79/mo
For growing teams scaling support and sales.
  • 5 AI agents
  • Up to 10,000 conversations/mo
  • Voice + all channels
  • Performance analytics
  • A/B testing & priority support
  • Custom integrations
Build your agent
Enterprise
$239/mo
Tailored deployments for large teams.
  • Unlimited agents & conversations
  • Custom model training
  • Dedicated account manager
  • White-label widget
  • Advanced security & compliance
  • API access & SSO
Contact sales
Security

Enterprise-grade security & privacy

We take security and compliance seriously. Your data stays yours, encrypted in transit and at rest.

Omnichannel & enterprise-ready

One agent brain, everywhere your customers already are, with the controls your organization expects.

  • Omnichannel web, WhatsApp, SMS, voice, and email from one agent.
  • Enterprise guardrails AI-powered guardrails prevent misinformation and off-topic replies.
  • Human oversight escalate any conversation without dropping the thread.
  • 80+ languages seamless detection and translation, worldwide.

Your data stays yours

Your data is only accessible to your agent and is never used to train foundation models.

  • Data encryption encrypted at rest and in transit with industry-standard algorithms.
  • Secure integrations verified variables ensure users access only their own data.
  • Role-based access control who can build, edit, and view each agent.
  • Audit trail every conversation logged and searchable.
SOC 2 Type IIGDPR compliantData encryption
FAQ

Questions, answered

What is Celli?

Celli is the complete platform for building and deploying AI agents. Each agent carries its own voice, skills, and knowledge to support, sell, and engage your customers in natural conversations, and take real actions in your systems, around the clock.

Is Celli only for sales?

No. Celli agents handle support, sales, onboarding, qualification, and engagement, often all within one agent. You decide the job, connect the tools, and the agent handles the conversation end to end.

Which channels does Celli support?

Web chat, WhatsApp, SMS, and voice, all from the same agent. One agent brain deploys everywhere your customers already are, with a dedicated phone number provisioned automatically.

Can agents take actions, not just answer?

Yes. Configure actions like booking, updating records, issuing refunds, or triggering workflows. Your agent resolves the request instead of just replying to it.

How does it handle security & data?

Your data stays yours and is never used to train foundation models. Everything is encrypted in transit and at rest, with role-based access, audit trails, and enterprise-grade guardrails on every conversation.

How fast can I go live?

Under five minutes. Describe the job, connect your sources and channels, and your agent goes live, ready to take conversations.

Make customer experience your competitive edge

Use Celli to deliver AI experiences that set you apart. Free to start, no credit card required.

Build your agent for free