Best AI email marketing tools

How the list was built

Every tool here sells email campaigns with AI features built in. AI in an email tool means software that drafts copy, suggests subject lines, groups contacts or picks a send time.

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We ranked the nine on two checkable things. The first is the monthly price at 2,500 and 10,000 contacts; the second is which plan switches the AI on.

One warning before the numbers. The vendors count your list differently. Klaviyo bills active profiles, Mailchimp bills unsubscribed contacts too, GetResponse counts the same address once per list and Brevo bills emails sent. The price table follows each vendor’s own count, so check how your list would be counted before you compare.

What each tool costs at 2,500 and 10,000 contacts

Kit is free up to 10,000 subscribers, and Brevo is the cheapest paid plan at both sizes. HubSpot costs the most from 2,500 contacts up: its Starter plan adds a fee per block of 1,000 marketing contacts (HubSpot product catalogue).

The table shows the cheapest plan at each size, which does not always include AI writing. GetResponse Starter caps its AI generators at three uses. Mailchimp Essentials has no generative AI.

ActiveCampaign’s pricing page shows yearly billing only, so its figures are monthly rates billed for a year. The email marketing price tracker works out your own list size and send volume.

Which plan switches the AI on

AI writing is on the free plan at Omnisend and on the first paid plan at Brevo, MailerLite and Klaviyo. GetResponse, Mailchimp and ActiveCampaign put it one plan higher. HubSpot’s Content agent and AI email template upload need Professional, and Kit names no plan for its subject line tool.

That gap changes the ranking. Priced on the cheapest plan with AI writing, MailerLite comes second at 2,500 contacts and Omnisend third. At 10,000, GetResponse Marketer comes third at $114, ahead of Omnisend and Klaviyo. The guide to AI features in email tools explains what each feature does in a campaign.

Does the tool train AI on your list?

Two of the nine say no in writing: Kit in its help centre and GetResponse in its terms. Four have clauses that allow training on your data, HubSpot lets you opt out, and two read unclear.

Mailchimp’s clause is the widest: it covers your inputs and outputs, “including Customer Data”, for machine learning (terms section 30). Brevo limits its training to improving the services, “in particular” fraud and spam prevention (terms 6.7). The guide on whether your email tool trains AI quotes every clause in full.

The nine tools, one by one

Each section gives the price at your list size, the AI by plan, the training clause and counted user reviews. Sections run from the cheapest plan with AI at 2,500 contacts to the dearest.

Brevo: AI writing on the cheapest paid plan

Brevo bills by emails sent, with a contact cap per email tier. Starter costs $9 a month for 5,000 emails and 500 contacts (Brevo pricing). At about four emails a contact, 2,500 contacts lands on the 15,000-email tier, $25. 10,000 contacts costs $46.

The Aura AI content generator drafts subject lines and copy from Starter. AI send-time optimisation and marketing automation start on Standard, $18 a month before the email tier. AI segments and product recommendations sit on Professional.

Terms 6.7 let Brevo train its AI features on your content and usage data.

Brevo treats every automation email as transactional, so the unsubscribe link in those emails blocks only transactional mail (1 of 5 sources, Reddit). That matters if you run marketing flows under GDPR. One user calls the free tier of 300 emails a day enough for a small business (1 of 5, Reddit). Our Brevo pricing breakdown prices every email tier.

Best for

Lists that send rarely: Free stores up to 100,000 contacts and sends 300 emails a day; Starter costs $9 a month for 5,000 emails.

Skip it if

you email the whole list twice a week or more. Brevo bills sends, so 10,000 contacts at that pace land on a higher tier than the four-send figure here.

MailerLite: AI drafting and automations on Comfort

MailerLite bills active subscribers only. Unsubscribed and bounced addresses do not count, though an address active at any point in a billing cycle counts for that cycle (MailerLite pricing FAQ). Comfort starts at $12 a month for 500 subscribers and costs $33 at 2,500.

Comfort adds the AI writing assistant, the full subject line generator and smart sending. Free gets a limited subject line generator and one use of the AI landing page builder.

Terms clause 17.3 grant MailerLite “a license to use your Inputs and Outputs to improve AI models” (terms, 22 September 2026).

MailerLite vs Mailchimp sets the two side by side.

Best for

Small lists that want automations, landing pages and AI drafting at a low entry price: Comfort starts at $12 a month for 500 subscribers.

Skip it if

you need a free plan past 250 subscribers: MailerLite Free stops sending above that, while Kit Free goes to 10,000.

Omnisend: AI writing on the free plan

Omnisend puts AI subject lines, copywriting and segments on its free plan. That plan is capped at 250 contacts and 500 emails a month (Omnisend AI FAQ).

Standard costs $44 at 2,500 contacts. Product recommendations and personalised send times need Pro or a paid Standard add-on.

Omnisend bills subscribers and any non-subscriber who received an automated message; unsubscribed contacts are not billed. Its terms (30 April 2026) contain no sentence on training models with your content. Clause 10.7 takes a licence to aggregated data that does not identify anyone, so we mark it unclear.

Users find it easy to set up, often calling it less intimidating than Klaviyo (17 of the 60 newest four- and five-star reviews: Shopify App Store, Shopify App Store). Suspensions at sign-up appear in 6 of the 56 newest one- and two-star reviews (Shopify App Store, Shopify App Store).

Best for

Online stores on Shopify or similar that want flows, forms and AI copy at a lower list-size price than Klaviyo, and that send mostly email.

Skip it if

you plan to import a large list on day one: reviewers describe suspensions at sign-up or after unusual sending.

Kit: free to 10,000 subscribers, AI connectors on Creator

Kit Free covers up to 10,000 subscribers with unlimited broadcasts, forms and tagging (Kit help centre). It leaves out visual automations, sequences and AI Connector actions (Free can connect an assistant but not run its tools). Creator costs $39 a month at 1,000 subscribers and $139 at 10,000.

AI Connectors let Claude, ChatGPT and other assistants read the account and act on it, from Creator. Kit’s AI page says the broadcast editor generates and tests subject lines, with no plan named. Kit’s help centre says “Kit itself does not train any AI/LLM on Kit data” (AI Connectors FAQ).

Users find Kit easy, including those with little technical skill (6 of 19 sources: Trustpilot, Trustpilot), and rarely mention its AI features. Slow support once a billing or technical problem starts leads the complaints (5 of 19: Trustpilot, Trustpilot). Four of 19 say the price climbs too fast with contacts (Trustpilot, Trustpilot). Kit vs MailerLite compares the two creator plans.

Best for

Solo creators and small newsletter or course businesses under 10,000 subscribers, free without automations or paid with visual automations priced by list size.

Skip it if

you need automated sequences on a free plan: Kit Free has none, and Creator jumps with every subscriber step.

Klaviyo: predictive data on the Email plan

Klaviyo bills active profiles: contacts with an email address that are not suppressed. The Email plan starts at $20 a month for 251 to 500 profiles and costs $150 at 10,000 (Klaviyo pricing). All plans bill monthly.

The free plan includes an AI subject line generator and a small Composer agent allowance.

The Email plan card adds “AI-generated segments, content, and images” and predictive analytics. Terms 8.1 bar using customer data to train third-party foundation models and say nothing about Klaviyo’s own models, so the answer reads unclear.

Store owners praise flows, segments and revenue reports (14 of the 60 newest four- and five-star reviews: Shopify App Store, Shopify App Store). Bot sign-ups that inflate the profile bill come up too (7 of the 60 newest one- and two-star reviews: Shopify App Store, Shopify App Store).

Support is hard to reach, above all on the free plan or after a billing problem (18 of the 60 newest one- and two-star reviews: Shopify App Store, Shopify App Store).

Best for

Online stores with thousands of contacts wanting flows, segments and predictive data, and willing to clean the list to cut the profile count.

Skip it if

you want the lowest bill at 10,000 contacts: Klaviyo’s Email plan costs more there than Brevo, MailerLite or GetResponse.

Mailchimp: generative AI from Standard

Mailchimp Essentials costs $13 a month for 500 contacts and has no generative AI. Standard adds it as a “No additional cost add-on” from $20 a month, or $135 at 10,000 (Mailchimp pricing). Subscribed, non-subscribed and unsubscribed contacts all count towards your limit.

Terms section 30 grant Mailchimp an irrevocable licence to your AI inputs and outputs and allow machine learning on customer data. The account-settings preference it mentions is not described as switching training off.

Mailchimp alternatives lists what to move to.

Best for

Small lists that want a large integrations catalogue and templates: Essentials starts at $13 a month for 500 contacts.

Skip it if

you keep many unsubscribed contacts: Mailchimp bills them, and Essentials has no generative AI at any list size.

GetResponse: unlimited AI generators from Marketer

GetResponse Starter costs $19 a month at 1,000 contacts with unlimited sends, but caps the AI email and subject line generators at three uses (GetResponse pricing). Marketer removes the cap at $59 a month, and $69 at 2,500 contacts. Yearly billing is 18% off.

GetResponse counts contacts per list. The same address on two lists counts twice, and unsubscribed and deleted contacts count in the monthly total (terms). Section 10 says “the model does not learn from the content provided by the Customer”. That is a statement about its AI providers, OpenAI among them.

Support and onboarding calls draw praise (10 of 24 sources, on Trustpilot). Billing and cancellation disputes lead the complaints (5 of 24, on Trustpilot). See the GetResponse pricing breakdown for every list size.

Best for

Small lists wanting unlimited sends and AI writing under terms that say the model does not learn from customer content.

Skip it if

you keep one contact on several lists: GetResponse counts each list separately, so the bill outgrows your real audience.

ActiveCampaign: automation on Starter, AI writing on Plus

ActiveCampaign Starter includes the AI automation builder and AI-suggested segments for $15 a month billed yearly at 1,000 contacts (archived pricing page). AI content and image generation start on Plus, $49 a month billed yearly. Predictive sending needs Pro.

Section 4 of the terms lets ActiveCampaign “internally use Marketing Content to help us train and improve the Services”. The clause names no AI model and offers no opt-out (terms, 23 December 2025).

Users praise the automation builder (6 of 21 sources, on Trustpilot). Four of 21 call the AI features hit or miss or in the way, on the same site.

Best for

Teams needing multi-step automation on the entry plan: Starter has the automation builder, AI segments and sends up to 10 times your contact limit.

Skip it if

you want AI copy on the entry plan: Starter has no generative AI, and the pricing page shows yearly billing only.

HubSpot: AI on Professional, at a CRM price

HubSpot Marketing Hub Starter costs $20 a month per core seat with 1,000 marketing contacts. Each extra block of 1,000 adds a fee, so 10,000 contacts costs $410. Only marketing contacts are billed; contacts you never email stay free.

The Content agent and AI email template upload need Professional, $890 a month with a required onboarding fee. Send-time optimisation sits on Enterprise. Terms 5.3.1 let HubSpot train its AI models on customer data, and you can opt out in account settings.

Contracts and auto-renewals lead the user complaints (7 of 22 sources, on Trustpilot). Two of 22 call its AI tools weaker than specialist ones.

Best for

Teams already on HubSpot CRM that want email on the same contact record, billed only for contacts they email.

Skip it if

you want AI writing on a small budget: the Content agent needs Professional, which carries a required onboarding fee.

Free email marketing tools: what each free plan caps

Kit Free holds the most subscribers you can email at no cost, 10,000. Brevo stores more contacts but caps sending at 300 emails a day. Four free plans stop at 250 contacts.

BEST FREE EMAIL MARKETING SOFTWARE 2026 📧 My Honest Comparison & Top Tools ✅Allan Borch - Dotcom Dollar

Free emails carry the vendor’s branding at Brevo, MailerLite, Mailchimp, Omnisend and HubSpot. For AI drafting at no cost, Omnisend’s free plan is the only one here whose page lists AI copywriting.

Left out, and why

beehiiv and Substack are newsletter platforms with paid subscriptions; they sit on the newsletter platforms list. Instantly, lemlist, Smartlead and Apollo send cold outreach from sales mailboxes and bill by seat or plan, so they have their own list.

Every AI email marketing page, sorted by job, is in the AI email marketing hub →