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For knowledge professionals

Your audience doesn't need more emails. It needs you to keep showing up.

Kai News is the newsletter platform with a Continuity Engine: AI that writes in your voice, a radar that notices when your list is cooling down, and proactive nudges with ready-to-edit ideas, before silence turns into distance.

Free plan forever · No credit card · Real AI included

Sound familiar?

If you write to an audience (a newsletter, your clients, your community), you know these moments.

01

The blank Tuesday

You know you should write this week. You open the editor and the question lands: what do I say that's actually worth their time?

02

The weeks that slip away

One busy week becomes three. Nobody complains, nothing breaks, and that's exactly why it keeps slipping.

03

The awkward comeback

The longer the silence, the heavier the return. Do I apologize? Do I pretend nothing happened? Easier to postpone it again.

04

AI that sounds like everyone

You tried ChatGPT. The result was correct, polished… and interchangeable with anyone else's newsletter. Your readers can tell.

None of this feels urgent. That's the trap: a list never complains when you disappear, it just quietly stops opening, stops trusting, stops being yours. The audience you worked so hard to build cools down in silence.

We built Kai News on one conviction

The real arena isn't email marketing. It's the relationship of trust between you and the people who chose to hear from you.

Your audience is an asset that belongs to YOU, not to an algorithm that decides who sees you today.

And the real competitor isn't another tool. It's “this week I didn't get around to writing”.

Everything in Kai News exists to keep that relationship alive. The rest is plumbing.

The Continuity Engine

Other platforms wait for you to log in. Kai News keeps watch over the relationship, and comes to you.

You always know where you stand

A radar over the relationship

Set your rhythm: weekly, biweekly, monthly. The radar tracks how long your list has gone without hearing from you: healthy, at risk or cold. What's cooling becomes visible before it becomes distance.

The proactive nudge

Kai writes to you first

When you cross into “at risk”, Kai emails YOU: a short, guilt-free note with 1–3 ideas anchored in your topics and in what your audience responded to. One click turns an idea into a draft.

Ideas + research

A good reason to write, every week

Ideas from your pillars, sequels to what performed best, and deep research on your field with cited sources, so you write because you have something to say, not to fill a slot.

Even after months of silence

Momentum and a way back

Streaks measured in months of active relationship (not childish badges), and a Return mode with three honest ways to reappear after a pause. No guilt: coming back is one click.

The radar and the nudges cost you nothing, they're not a premium add-on. They're the reason Kai News exists.

AI that lowers the friction without replacing your voice

The point isn't that a machine writes your newsletter. It's that publishing in YOUR voice stops costing you a whole evening.

It learns who you are, by chatting

You train your “essence” in a conversation: your topics, your stances, how you write, who you write to. Paste old articles or attach files; when Kai distills your profile, it keeps the profile and deletes that conversation.

Every button writes like you

Subject lines with their rationale, A/B variants, rewriting a block, or a full campaign from a one-line brief, always through your essence: your tone, your do's and don'ts.

You always have the last word

The AI proposes; you edit and approve. Nothing the AI writes reaches your audience without your OK. It's instructed not to invent facts or credentials: if something's missing, it leaves a [pending] marker instead.

Simple economics: KaiCoins

Every AI action has a flat, visible price in KaiCoins. No token math, no surprises. Sending emails never costs KaiCoins: you only spend when the AI works for you.

What it looks like inside

Real screens from the panel, captured with a demo account.

Kai News Continuity Engine screen with the relationship radar and the editorial plan
The Continuity Engine: the radar and your ideas for this week.
Kai News campaign editor with a newsletter draft on the canvas
The editor: the canvas is the email, with AI in every block.
Kai News essence screen with the voice, pillars and audience profile
Your essence: the profile the AI writes with.

Who Kai News is for

Four situations we see again and again. If one sounds like yours, you already know where to start.

Three ways of building an audience

Your profession changes what the relationship turns into and which piece helps you first. It doesn't change the plan: that depends on your list, your rhythm and your team.

  • You sell your judgment one client at a time

    Consultants, coaches, independent professionals, technical experts, founders

    It turns intoBeing the one they call when the need shows up.

    Start withThe radar and the nudge: client work is what eats your week.

  • You speak to many people at specific moments

    Speakers, educators, trainers

    It turns intoThe next invitation, or the next enrollment.

    Start withYour form's own link and the automatic welcome, the same week, before they cool off.

  • You publish to be read

    Authors, specialized creators, researchers

    It turns intoReaders who follow your work.

    Start withThe public archive of your editions and research with cited sources.

You're starting your own list

People follow you on LinkedIn, your students ask for more, clients forward your ideas. But you still don't have a list that's yours.

A form and a pop-up for your site, an automatic welcome and your first deep research free. You start with no card.

Usually fitsSemilla, free up to 500 contacts

You want to write every week and can't keep it up

You're a consultant, educator or coach with a list that reads you, and weeks that slip away between clients and deliverables.

The radar warns you before the list cools down, the nudge brings you ideas and the AI drafts in your voice.

Usually fitsEsencial (up to 1,000 contacts) or Pro (up to 5,000)

You have a list, but haven't written to it in months

It lives in MailerLite, Mailchimp or a spreadsheet, and every week it gets harder to come back.

You import your CSV with its unsubscribes, Return mode gives you three honest ways to reappear, and the radar helps you not disappear again.

Usually fitsThe plan that matches the size of your list

A firm or small team that publishes with a point of view

A boutique consultancy, a school or a personal brand with someone who helps: several people working on the same audience.

Up to 10 people on one account with no per-seat fee, sending from your own domain, and an API and MCP server for your stack.

Usually fitsPro (3 people), Autoridad (5) or Growth (10)

And it's not for you if…

  • You send transactional or online-store emails (carts, orders, invoices).
  • You want to charge your readers for the newsletter: there are no paid subscriptions here today.
  • You want to buy or rent lists: we only send to people who gave their consent.
  • You need automation workflows with branches and conditions: here there's an automatic welcome, not a workflow builder.
  • You want the AI to publish on its own without you reviewing anything.
  • Your list is well beyond 30,000 contacts: that's an Enterprise conversation.

How you get started

Four steps, no technical setup to begin, and you can stop at any of them.

  1. 01

    Create your free account

    With Cuenta Kai, the single account for the whole Kai family. No card.

  2. 02

    Tell Kai who you are

    A conversation to train your essence: your topics, your tone, who you write to. You can skip it; everything works, just more generic.

  3. 03

    Bring your people

    Import your CSV or share your form and pop-up, and switch on the automatic welcome.

  4. 04

    Send, and let the radar keep watch

    Your first campaign goes out from a shared address or your own domain. From then on, the radar tracks your rhythm and writes to you if you go quiet.

The best week to write to your list was last week. The second best is this one.

Start today, it's free

And everything you'd expect from a serious platform

The Continuity Engine is the heart. Around it, the complete toolset, nothing missing.

Subscribers & segments

Custom fields, groups as tags, CSV import/export, bulk actions.

Email-safe visual editor

Blocks and columns that survive Outlook, 4 style presets, prebuilt sections and full campaign recipes.

Forms with double opt-in

Public subscription pages with your branding, embeddable, with proof of consent.

Automatic welcome

Up to 3 emails for each new subscriber who joins through a form, spaced over the days you choose.

Pop-up for your site

Your form as a pop-up that appears after a delay, on scroll or on exit, installed with a single snippet.

Public archive of your editions

The editions you choose, published on their own page that search engines can find.

Analytics that teach

Opens, clicks, growth. Plus AI that reads a campaign's numbers and tells you what to try next.

A/B subject testing

Split your audience between two subject lines and learn which angle moves YOUR readers.

Scheduling in your timezone

Pick the wall-clock time; Kai handles UTC and daylight saving for you.

Deliverability by the book

SPF, DKIM, one-click unsubscribe (Gmail/Yahoo standard), double opt-in and automatic bounce/complaint suppression.

API + MCP for your stack

REST API with OpenAPI, usable from Make, Zapier or your own GPTs over HTTP, and a native MCP server for AI agents.

Your data is yours

Export your full list anytime, in one click. No lock-in, no hostages: the audience belongs to you.

Who's behind it

Kai News is built by Kai Strategy Lab, in Cali, Colombia. It was born for Mauricio Zúñiga's own list, and today it opens up to other professionals who make a living from what they know. We don't show testimonials yet: we'd rather wait for real ones than make them up.

  • A person answers at news@kaistrategylab.com
  • 7-day money-back guarantee on your first purchase
  • Your data is isolated from other accounts and exports in one click

Plans that grow with your relationship

Every plan includes the full platform: subscribers, campaigns, forms, analytics and the Continuity Engine. What scales is your audience and your AI.

Emails and contacts are your plan's limit; KaiCoins only measure how much AI you use and scale with how often you publish, not with how big your audience is. The bigger the plan, the less you pay per contact: from under half a cent a month.

One charge a year instead of 12. It renews automatically every 12 months; cancel anytime.

Semilla (starter)

Free
  • 500 contacts
  • 1,000 emails/mo
  • 1,200 AI KaiCoins/mo
  • 1 person

Your 1,200 KaiCoins cover, for example, 2 campaigns fully written by AI each month, and your first deep research is on us. If AI just assists, they go more than twice as far. Try the real thing.

Start free

Esencial (essential)

US$7.50/mo
US$9/mo · billed annually (US$90)
  • 1,000 contacts
  • 10,000 emails/mo
  • 3,000 AI KaiCoins/mo
  • 1 person

Your 3,000 KaiCoins cover, for example, your weekly newsletter fully written by AI (4 complete campaigns) + 1 deep research a month. If AI polishes instead of drafting, they go much further.

Pro

Most popular
US$16.67/mo
US$20/mo · billed annually (US$200)
  • 5,000 contacts
  • 25,000 emails/mo
  • 6,000 AI KaiCoins/mo
  • 3 people

Your 6,000 KaiCoins cover, for example, 9 complete AI campaigns + 2 deep researches a month, and they go further when AI just assists.

Autoridad (authority)

US$40.83/mo
US$49/mo · billed annually (US$490)
  • 15,000 contacts
  • 100,000 emails/mo
  • 12,000 AI KaiCoins/mo
  • 5 people

Your 12,000 KaiCoins cover, for example, 19 complete AI campaigns + 4 deep researches a month, and they go further when AI just assists.

Growth

US$82.50/mo
US$99/mo · billed annually (US$990)
  • 30,000 contacts
  • 250,000 emails/mo
  • 24,000 AI KaiCoins/mo
  • 10 people

Your 24,000 KaiCoins cover, for example, a daily AI-written campaign (38 a month) + 8 deep researches, and they go further when AI just assists.

  • Free plan, free forever
  • No card to start
  • Cancel anytime
  • 7-day guarantee on your first purchase
  • Your list exports in one click

Need more than Growth? Enterprise is tailored to you: let's talk

The questions you're probably asking yourself

Straight answers: the same ones we'd give you over a coffee.

What is Kai News?

Kai News is a newsletter and email marketing platform for knowledge professionals (consultants, advisors, educators, experts) whose real challenge isn't sending emails but keeping the relationship with their audience alive. It combines the usual tools (subscribers, campaigns, forms, analytics) with a Continuity Engine: AI that writes in your voice, a radar that detects when your list is cooling down, proactive nudges with ideas, deep research with cited sources and a guilt-free Return mode.

Is it for me if I only have a few subscribers?

Yes, and it's the best moment to start. The free plan takes up to 500 contacts, and the form, the pop-up and the automatic welcome help you turn the people who already follow you elsewhere into your own list. Kai News is designed for people formalizing their own audience, not for those already sending to hundreds of thousands.

How is it different from Mailchimp, Substack or beehiiv?

Those platforms optimize the sending or the growth; Kai News optimizes the continuity of the relationship. What makes it different: a radar that measures how long your audience has gone without hearing from you, nudge emails that arrive with ready-to-edit ideas when you're cooling down, AI trained on your essence so drafts sound like you (not like everyone), and field research with cited sources. And you still get all the standard tools: editor, forms, A/B testing, analytics, API. One thing they do that Kai News doesn't: charge your readers. There are no paid subscriptions here today, so if your plan is to monetize the newsletter itself, those platforms are the ones built for that.

How do I move from MailerLite, Mailchimp or Substack?

Export your list as a CSV and import it here: the columns are recognized automatically, including the subscription status, so people who had unsubscribed come in as unsubscribed. You can also upload your old tool's suppression list so nobody who left gets emails again. The one condition: only people who gave you their consent.

I give talks and teach courses. How do I add the attendees?

With your form's own link, shared at the end of the talk or the course: every form in Kai News has a public address you can put on your last slide or in the class chat, and the automatic welcome greets each person the same day they sign up, while they still remember you. What you can't do is import the organizer's attendee list: those people gave their data to the event, not to you, and Kai News only sends to people who gave their consent to you.

How much time does this actually take each week?

Less than it takes you today, because what costs the most isn't writing: it's the blank page. With your essence trained, a full draft from a one-line brief is ready in minutes; polishing a block or a subject line is one click; and when you don't know what to write, the assistant or the nudge brings you ideas anchored in your topics. What's left is your part: reviewing, adjusting and sending.

Will the AI sound like me, or like every AI newsletter out there?

It's designed to sound like you. You train your essence in a conversation (topics, stances, tone, phrases you use and avoid) and every AI action injects that profile. You review and approve everything before it goes out. And if you haven't trained it yet, everything still works, just more generic until you do.

I haven't written to my list in months. Is it too late?

No: this is exactly what Return mode is for. It gives you three honest ways to reappear (a reflection, a useful resource or a brief update), written in your voice, without over-apologizing. Audiences forgive silence more than you think; what erodes them is disappearing forever. And once you're back, the radar helps you not fall into the same hole.

Do I need my own domain to send?

Not to start: you can send right away from a shared Kai News address, without touching DNS. When you want to send from your own domain, an assistant shows you the DKIM records to publish and tells you when they're verified. Over time, your own domain builds your sending reputation with Gmail and Outlook.

Will my emails end up in spam?

We do everything by the book so they don't: SPF and DKIM authentication, one-click unsubscribe (Gmail and Yahoo standard), double opt-in on forms, and automatic suppression of bounces and complaints. No platform can honestly promise 100% inbox placement, but the technical side is covered, and the anti-spam policy protects the sending reputation every account shares.

Is my list really mine? Can I leave whenever I want?

Yes and yes. Your subscribers export to CSV in one click, custom fields included. There's no lock-in and no retention tricks. Your account's data is isolated from every other account's, and if you cancel a paid plan you don't lose data, you just can't exceed the free plan's limits until you upgrade again.

What happens to the material I paste to train the AI?

What you paste or attach lives in the training conversation while you work on it. When you distill your essence, Kai keeps only the structured profile (your voice, pillars, audience) and deletes that conversation. AI usage logs store numbers (tokens, cost), not content. To generate answers, the text is processed by OpenAI, as the privacy policy explains.

What are KaiCoins? Do I pay per subscriber or per email sent?

KaiCoins measure one thing only: how much AI you use. Every action has a flat price you see before you click (suggesting subject lines: 20; a full campaign: 240; a deep research: 1,000), with no token math. It's the KaiCoin standard across the Kai family (1 KaiCoin ≈ US$0.001 of real AI). Contacts and emails are your plan's limits, and sending never consumes KaiCoins. Every plan includes a monthly allowance, and you can top up anytime.

Is the free plan actually free, or a trial in disguise?

Free forever, no card: 500 contacts, 1,000 emails a month and 1,200 KaiCoins a month. Enough for about 2 campaigns fully written by the AI, plus your first deep research as a welcome gift. When your audience or your AI use grows, paid plans start at US$9/month.

What happens if I hit my plan's limit?

Nothing gets deleted or breaks. You simply can't send more emails until the next month starts, or add contacts beyond your cap until you upgrade. If what runs out is KaiCoins, you top up a pack without changing plans, and those KaiCoins don't expire.

Can I work with my team?

Yes, from Pro on: 3 people in Pro, 5 in Autoridad and 10 in Growth, all working on the same audience and the same KaiCoin balance, with no per-seat fee. Payments and sensitive settings stay with the account owner.

How do I pay, and from which countries?

Prices are in USD as a reference and you pay in your local currency through dLocal Go, which today can charge buyers in 16 countries: Argentina, Bolivia, Brazil, Chile, Colombia, Costa Rica, Ecuador, Guatemala, Indonesia, Kenya, Malaysia, Mexico, Nigeria, Paraguay, Peru, and Uruguay. With a card you subscribe monthly or annually: both renew on their own (the annual one every 12 months, with 2 months free) at the price in force, and you can cancel anytime from your account. Without a card, you can pay for a single month or year with your country's local payment methods (in Colombia, PSE or Nequi): that payment doesn't renew and we remind you before it expires. The free plan works from anywhere; if your country isn't on the list, write to us before paying.

What if it doesn't work for me?

If it's your first purchase of a paid plan and it doesn't live up to what you expected, you can ask for a full refund within 7 calendar days of the first charge. You can also cancel anytime and keep access until the end of the paid period, and going back to the free plan doesn't delete your data. The details are in the refund policy.

What is the Kai Bridge with Kai Career Elevate?

An optional link between your Kai News and Kai Career Elevate accounts (same email); Career is our professional growth system. Linked: your career assets (posts, narrative, market findings) arrive here as ready-to-write campaigns, every campaign you publish goes back as visibility evidence, and you get 10% more monthly KaiCoins in both products. There are also joint bundles (Kai Impulso Total and Kai Autoridad) cheaper than buying separately. Each product is complete on its own; the bridge connects and disconnects with one click.

Your audience is still there.

The relationship picks back up with a single email. And you don't have to write it alone.

500 contacts, 1,000 emails a month and AI included: free, no card.

Kai Bridge

Writing to grow professionally? Connect it with Kai Career Elevate.

Kai News is complete on its own. And if your newsletter is part of your career (consulting, technical authority, personal brand), it connects with Kai Career Elevate to close the circle: your work becomes content, and your content becomes professional capital.

  • Your career assets (posts, narrative, market findings) land in the Assistant as ready-to-write campaigns.
  • Every published campaign becomes automatic visibility evidence in your professional profile.
  • Linked accounts: 10% more monthly KaiCoins in both products, plus joint bundles cheaper than buying separately.
  • Do you read to have something to say? With Kai Insight, your reading highlights and artifacts arrive as editorial material: 2-3 underlined ideas become ONE piece in your voice.
Discover Kai Career Elevate

Write to your list without vanishing

Once in a while, what we learn about keeping a real relationship with the people who read you.