Every email platform now advertises "AI" somewhere on its pricing page — predictive send times, subject-line generation, an assistant that drafts your newsletter. What actually varies, and matters more than the AI badge, is how each platform charges: by contact, by send volume, or by feature tier, and how fast that bill grows as your list does. This guide compares Klaviyo, Mailchimp, ActiveCampaign, Beehiiv, and MailerLite on real 2026 pricing and which AI features are genuinely useful versus decorative. New to AI tools generally? Start with how to use ChatGPT effectively. This page is part of our wider guide to AI tools for marketers.
The math: Time to set up ~2 hours · Tasks helped: subject lines, send-time optimization, segmentation, drafting · Real cost depends almost entirely on list size — expect $10–45/month for small lists, $100+ once you cross a few thousand contacts. Pricing shifts constantly, especially as contact counts grow — confirm current numbers on each tool's site before buying.
Here's the thing: almost every platform on this page prices by contact count, so the number on the homepage is only true at whatever list size they chose to advertise. Klaviyo's plan that looks like $45/month is closer to $30 at 1,000 contacts and $400 at 25,000 — the AI features don't change, but the bill scales with your list regardless of how many emails you actually send. The real comparison isn't "which AI is smartest," it's "which pricing curve fits how big my list is going to get."
The AI itself splits into a few real categories worth knowing apart: send-time optimization (picking when to email each subscriber based on their own open patterns — genuinely useful, low risk), predictive segmentation (guessing who's likely to buy or churn — useful once you have enough data), and content generation (drafting subject lines or full emails — convenient, but needs editing every time). Don't pay a premium for a platform's AI badge without checking which of these three it actually includes at your tier.
| Tool | Best for | Starting price | Standout | The honest catch |
|---|---|---|---|---|
| MailerLite | Cheapest entry | Free / from $10/mo | AI writing assistant on paid tiers | 2026 price hike; free tier shrank |
| Beehiiv | Newsletters & publishers | Free / from $49/mo | 0% cut of subscription revenue | AI features start on paid Scale tier |
| ActiveCampaign | Automation depth | From $15/mo | Predictive sending (Active Intelligence) | Extra seats, SMS, and add-ons stack up |
| Klaviyo | Ecommerce | Free / from ~$20/mo | Strong predictive segmentation | Billed on total profiles, not just active |
| Mailchimp | Familiar, all-in-one | Free / from $13/mo | Broad ecosystem & integrations | Full AI Creative Assistant needs $350/mo tier |
Ordered cheapest to most expensive at typical small-list volume.
MailerLite's free plan covers up to 250 subscribers and 2,500 emails a month (both reduced in a June 2026 pricing update). Growing Business starts around $10/month; Advanced starts around $20/month and includes an AI writing assistant that helps draft headlines, product descriptions, and full newsletters. A June 2026 repricing raised paid-tier costs roughly 10–30% across the board.
Who it fits: solo creators, small businesses, and anyone starting an email list from scratch on a tight budget. What it does well: the AI writing assistant is genuinely built into the Advanced tier rather than gated behind an enterprise plan, and pricing is usage-based rather than feature-gated — every paid tier gets the same core toolset. Where it falls short: the June 2026 changes shrank the free tier's limits and raised paid prices, so budget for a higher bill than older reviews suggest. Pricing: free (250 subscribers); paid from $10/month.
Beehiiv is built specifically for newsletter publishers and creators. The free Launch plan covers up to 2,500 subscribers with unlimited sends, a custom site and domain, and basic analytics. The Scale plan starts around $49/month (about $43 annually) under 1,000 subscribers and adds monetization tools, A/B testing, and AI features; Max runs $109+/month and removes Beehiiv branding. Beehiiv takes 0% of your paid-subscription revenue — you keep everything minus standard Stripe fees.
Who it fits: newsletter writers and publishers who may eventually monetize with paid subscriptions, not primarily transactional or ecommerce marketers. What it does well: the free tier is genuinely generous up to 2,500 subscribers, and taking no cut of subscription revenue is a real differentiator versus competitors. Where it falls short: AI features live on the paid Scale tier and up, not the free plan, and it's a narrower fit if you need deep ecommerce automation rather than newsletter publishing. Pricing: free (2,500 subscribers); paid from $49/month.
ActiveCampaign leans hardest into automation and predictive AI among mid-market platforms. Starter is $15/month at 1,000 contacts for solo email marketing; Plus ($49/month at 1,000 contacts) adds CRM and lead scoring; Professional ($149/month) adds the full Active Intelligence layer, including predictive sending that uses AI to determine the optimal send time per contact. Costs scale steeply with contacts — Plus grows from $49/month at 1,000 contacts to $349/month at 50,000.
Who it fits: marketers who need genuinely sophisticated automation — branching logic, lead scoring, predictive sends — not just a newsletter tool. What it does well: Active Intelligence's predictive sending is one of the more substantive AI features in this category, actually changing when emails go out per contact rather than just suggesting copy. Where it falls short: extra seats run $12/month each, SMS credits and transactional email require separate add-ons, and the full AI layer requires the $149/month Professional tier. Pricing: from $15/month at 1,000 contacts.
Klaviyo is the standard choice for ecommerce email and SMS. The free plan covers up to 250 profiles; paid plans are priced on total active profiles — roughly $20/month at 500 profiles, $30 at 1,000, $100 at 5,000, and $400 at 25,000. A newer Customer Agent AI product (an autonomous support/marketing agent) is a separate add-on: $140/month introductory rate (regular $200/month) plus $0.70 per conversation beyond the included 50 monthly conversations.
Who it fits: ecommerce brands, especially on Shopify, that need deep behavioral segmentation and flows tied to purchase data. What it does well: predictive segmentation (likely-to-churn, likely-to-buy) is genuinely strong once you have purchase history to train on, and the platform's ecommerce integrations are the deepest in this category. Where it falls short: billing is based on total profiles, not contacts you actively email, so an unengaged list still costs you, and Customer Agent AI's consumption-based pricing can surprise a growing account. Pricing: free (250 profiles); paid from ~$20/month at 500 profiles.
Mailchimp remains the most recognizable name in the category. Free, Essentials ($13/month), Standard ($20/month), and Premium ($350/month) are the four tiers at the 500-contact level. Standard adds a Content Optimizer for copy suggestions and basic predictive segmentation; the full Creative Assistant (AI-generated templates and social ads from your brand assets) and advanced predictive analytics require the $350/month Premium tier.
Who it fits: teams already inside the broader Mailchimp/Intuit ecosystem, or anyone who wants a familiar, well-documented tool with wide integration support. What it does well: the Standard tier's Content Optimizer is a reasonable mid-price AI feature, and the ecosystem and integration library are hard to beat. Where it falls short: the meaningful AI capability — the Creative Assistant — sits behind a $350/month tier that's out of reach for most small businesses, making Mailchimp's "AI-powered" marketing somewhat misleading at the price most people actually pay. Pricing: free; paid from $13/month; full AI requires $350/month Premium.
List size drives this category more than any other choice. A solo creator or small business starting out can run entirely free on MailerLite (250 subscribers) or Beehiiv (2,500 subscribers). A small list actively marketing (1,000–5,000 contacts) typically lands at $20–50/month on MailerLite, ActiveCampaign Starter, or Klaviyo. A growing ecommerce or automation-heavy operation should budget $100–150/month once list size and automation depth both scale up. Genuinely advanced AI features — Klaviyo's Customer Agent, Mailchimp's Creative Assistant, ActiveCampaign's full Active Intelligence — all sit behind premium tiers, so don't budget for them until the base platform has already proven its worth.
If you're sending fewer than a few hundred emails to a small, engaged list, most free tiers (MailerLite, Beehiiv, Mailchimp) genuinely cover it — you don't need a paid plan yet. Skip the premium AI tiers (Mailchimp Premium, Klaviyo's Customer Agent) until your base platform and list have grown enough to need them; a general assistant like ChatGPT or Claude drafting subject lines by hand is free and often just as good at small scale. For broader content and SEO needs beyond email specifically, see our guide to best AI SEO tools.
MailerLite's free plan (250 subscribers) and Beehiiv's free plan (2,500 subscribers) are both genuinely usable starting points. MailerLite's paid tiers from $10/month are the cheapest real upgrade path.
For ecommerce specifically, yes — Klaviyo's behavioral segmentation and purchase-data integration are deeper. For general marketing without heavy ecommerce needs, Mailchimp's lower entry price and broader ecosystem may fit better, though its real AI features are gated to a $350/month tier.
Only if publishing content — not selling products — is your primary email use case, especially if you might monetize with paid subscriptions later. Beehiiv's 0% revenue cut is a real advantage there that general marketing platforms don't offer.
It analyzes each individual subscriber's past open behavior and sends their email at the time they're statistically most likely to open it, rather than blasting your whole list at once. It's one of the few AI email features with clear, low-risk upside.
$0–20/month covers most small lists under 1,000 contacts on MailerLite, Beehiiv, or Mailchimp. Budget $50–150/month once your list or automation needs grow, and treat premium AI tiers as a later upgrade, not a starting requirement.