Yes. AI email tools now draft copy, suggest subject lines, build emails from a plain English description and time sends for each subscriber, though you still supply the offer and check the facts. For most small businesses we recommend MailerLite: paid plans start at $12 a month, include an AI writing assistant and smart sending, and come with a 14 day free trial with no card.
AI writing and send time features are built into affordable, mainstream email platforms that small businesses use every day.- Our pickMailerLiteStarts at $12/month
- Budget pickBrevoStarts at about $9/month for 5,000 emails, per third party price check
- Best free optionKitFree up to 10,000 subscribers: unlimited broadcasts, 1 user, no automations
- Upgrade pickMailchimpStarts at $20/month for Standard with AI
- Also greatKlaviyoFree plan; email plan starts at $20/month for 500 profiles, per third party breakdown
MailerLite
Best for most small businesses that want useful AI help in a simple, low cost email tool.
MailerLite puts its AI where you actually write. The AI writing assistant drafts text from a short prompt inside the campaign, landing page and pop up editors, and the subject line generator suggests several options based on your email MailerLite AI ↗. On paid plans, an AI agent in the HTML editor can build a whole campaign from a plain English description; it is still labeled beta MailerLite AI ↗. Smart sending picks a send time for each subscriber based on their past opens, clicks, sign up date and time zone MailerLite AI ↗.
Paid plans are cheap for a small list. Comfort starts at $12 a month and Power at $25 a month, and paying yearly saves 10 percent MailerLite pricing ↗. The AI writing assistant and smart sending are on both paid plans, with more AI credits on Power MailerLite pricing ↗ MailerLite AI ↗. Every new account gets 14 days of premium features with no credit card, and your data stays if you do not upgrade MailerLite pricing ↗.
MailerLite also offers an MCP server on every plan, which lets AI assistants such as Claude or ChatGPT connect to your account and manage campaigns from there MailerLite AI ↗. That is useful if you already plan your marketing in a chat assistant. Hands on testing is in progress; we will update this guide with results.
Why we like it
- AI writing assistant and smart sending from $12 a month
- AI subject lines on every plan, including free
- AI can build an HTML email from a description (beta)
- 14 day trial of premium features, no card
- MCP access for Claude and ChatGPT
Flaws but not dealbreakers
- AI credits are limited on the Comfort plan
- Some AI tools are still in beta
- Free plan capped at 250 subscribers
Brevo
Best for businesses that send to a large list but not very often.
Brevo prices by emails sent, not by contacts, which suits a business with a big customer list and a monthly newsletter. An August 2026 price check by Omnisend, a competing email platform, lists the Starter plan at $9 a month for 5,000 emails and Standard at $18 a month Omnisend on Brevo ↗. Brevo's own pricing page did not show dollar amounts when we checked, so confirm the price at signup Brevo pricing ↗.
The AI features are practical. Starter includes an AI content generator that drafts subject lines and email copy and adjusts tone, plus MCP access so ChatGPT and Claude can manage campaigns and contacts Brevo pricing ↗. Standard adds AI send time optimization Brevo pricing ↗. The bigger AI tools, such as AI segmentation and an AI data analyst you can ask questions in plain language, are on the Professional plan, which the same price check lists at $499 a month Brevo pricing ↗ Omnisend on Brevo ↗.
Brevo also has a free plan that lets you send up to 300 emails a day once your account is approved Brevo pricing ↗. That is enough for very small lists, though the AI content generator starts on Starter Brevo pricing ↗.
Why we like it
- Priced by emails sent, not contacts
- AI copy and subject lines from the Starter plan
- Free plan with 300 emails a day
- MCP access for AI assistants
Flaws but not dealbreakers
- Prices did not display on Brevo's own page when checked
- Best AI features need the costly Professional plan
- No free trial listed
Kit
Best for newsletters and small lists that need room to grow without paying.
Kit has by far the most generous free plan we found. It is free for up to 10,000 subscribers and includes unlimited landing pages, forms and email broadcasts, plus tagging, segmentation and selling digital products Kit pricing ↗. The limits: one user, no A/B testing, and no visual automations or email sequences Kit pricing ↗.
Kit is light on built in AI writing. Its pricing page lists Kit MCP, which connects AI tools like Claude and ChatGPT to your account, on the paid Creator and Pro plans, not the free plan Kit pricing ↗. Creator starts at $33 a month for 1,000 subscribers, with a 14 day trial and no card Kit pricing ↗. If you want AI drafting inside a free plan, MailerLite's free plan includes a limited AI subject line generator for up to 250 subscribers MailerLite pricing ↗ MailerLite AI ↗.
Why we like it
- Free up to 10,000 subscribers
- Unlimited broadcasts, forms and landing pages
- Segmentation and tagging on free
Flaws but not dealbreakers
- No automations or sequences on free
- No AI writing tools on free
- One user only
Mailchimp
Best for growing businesses that want more AI and a well known platform with room to scale.
Mailchimp's Standard plan includes generative AI at no extra cost, starting at $20 a month for 12 months, with five seats and five audiences Mailchimp pricing ↗. Intuit Assist, its AI assistant, is in beta for some Standard and Premium users in select countries, in English only, and Mailchimp says its no extra cost terms may change Mailchimp pricing ↗. Standard and Essentials come with a 14 day free trial, but you must enter payment details at signup Mailchimp pricing ↗.
Mailchimp is the upgrade because of what sits around the AI: it scales up to Premium for large teams and lists, and its parent company, Intuit, also makes QuickBooks Mailchimp pricing ↗. The cheaper Essentials plan, from $13 a month, does not include generative AI, so skip it if AI is the reason you are choosing Mailchimp Mailchimp pricing ↗. Its free plan is small: up to 250 contacts and 500 emails a month, with no automation flows and no AI Mailchimp pricing ↗.
Why we like it
- Generative AI included on Standard and Premium
- Scales to very large lists
- Five seats on Standard
Flaws but not dealbreakers
- No AI on Essentials or Free
- Intuit Assist is beta and limited by country
- Trial requires payment details
Klaviyo
Best for online stores that want email tied to purchase data.
Klaviyo is built for e-commerce. Its pricing page lists Klaviyo AI and a Customer Agent that supports and sells using your store data Klaviyo pricing ↗. A May 2026 pricing breakdown lists a free plan with up to 250 active profiles and 500 email sends a month, and the email plan at $20 a month for up to 500 profiles with 5,000 emails, or $30 a month for up to 1,000 profiles Spoks on Klaviyo ↗. It also includes predictive analytics such as customer lifetime value Spoks on Klaviyo ↗.
For a salon, clinic or contractor, Klaviyo is more than you need. For a shop that sells online, the link between orders, browsing and email is worth the price.
Why we like it
- Built around store purchase data
- Customer Agent and Klaviyo AI
- Free plan to start
Flaws but not dealbreakers
- Overkill for service businesses
- Prices rise quickly with list size
Compare them
| Tool | Starting price | Free plan | Free trial | AI writing | AI send time | Best for |
|---|---|---|---|---|---|---|
| MailerLiteOur pick | $12/mo | Yes, 250 subscribers | 14 days, no card | Yes, paid plans | Yes, paid plans | Most small businesses |
| BrevoBudget pick | About $9/mo | Yes, 300 emails/day | Not stated | Yes, from Starter | Yes, from Standard | Big lists, few sends |
| KitBest free option | $33/mo | Yes, 10,000 subscribers | 14 days, no card | Not stated | Not stated | Newsletters |
| MailchimpUpgrade pick | $13/mo; AI from $20/mo | Yes, 250 contacts | 14 days, card required | Standard and up | Not stated | Growing businesses |
| KlaviyoAlso great | $20/mo | Yes, 250 profiles | Not stated | Klaviyo AI | Not stated | Online stores |
| Constant Contact | $12/mo | No | Yes, no card | Yes, all plans | Not stated | AI copy on every plan |
Prices and features from each vendor’s site, checked Oct 9, 2026. Prices change often.
Who this is for
This guide is for owners who want to stay in touch with customers by email: a monthly newsletter, a seasonal offer, a welcome series for new clients, or reminders to rebook. You have a list of a few hundred to a few thousand people and no full time marketer.
If you have fewer than 250 subscribers, free plans from MailerLite, Mailchimp or Kit cover you MailerLite pricing ↗ Mailchimp pricing ↗ Kit pricing ↗. If you run an online store with thousands of orders, look closely at Klaviyo Spoks on Klaviyo ↗. If most of your marketing happens by text message or on social media, see our related guides.
Why you should trust us
We read each vendor's pricing page and AI feature documentation, all checked on October 9, 2026. Where a vendor page did not display prices, we used a recent third party price check and say so. We also read the FTC's rules for commercial email so our advice on sending is accurate. Every fact links to its source.
We have not yet sent real campaigns with these tools for testing. Hands on testing is in progress, and we will update this guide with results. Picks are made on merit; no vendor paid to be included.
How we picked
We started with the email tools small businesses use most, then checked which AI features each one includes on its cheaper plans, not just its most expensive one.
Our criteria:
- AI that drafts copy and subject lines inside the editor
- AI send time optimization
- A low monthly price for a list of 500 to 2,500 people
- A generous free plan or a no card free trial
- Automations such as welcome series and follow ups
- Connections to AI assistants and other apps
- Clear limits on AI credits
What AI email marketing can and can't do today
AI is good at the blank page problem. Give it a few lines about your offer and it drafts the email, suggests subject lines and adjusts the tone MailerLite AI ↗ Brevo pricing ↗. MailerLite can even build a full HTML email from a description, and AI landing page builders produce several page options from a short questionnaire MailerLite AI ↗. Send time tools pick a moment for each subscriber based on their past behavior MailerLite AI ↗ Brevo pricing ↗.
The newer step is connecting email tools to AI assistants. MailerLite, Brevo and Kit offer MCP connections so Claude or ChatGPT can manage campaigns and contacts for you MailerLite AI ↗ Brevo pricing ↗ Kit pricing ↗. That means you can ask an assistant to draft next month's newsletter and load it into your account.
AI is weak on facts and judgment. It will happily invent a discount or a date. Read every AI draft before it goes out, keep your own voice, and never let AI decide who gets an email without checking the segment. Remember too that AI credits run out: MailerLite gives fewer on Comfort than Power, and Mailchimp limits generative AI to its higher plans MailerLite AI ↗ Mailchimp pricing ↗.
Before you sign up
Email has legal rules. Under the US CAN-SPAM Act, your emails need accurate sender details, honest subject lines, a clear note that the message is an ad, a valid physical address and a working way to opt out, and you must honor opt outs within 10 business days FTC CAN-SPAM ↗. Each email in violation can cost up to $53,088 FTC CAN-SPAM ↗. Good email tools handle the unsubscribe link and address footer for you.
Inbox providers have rules too. Google lists SPF, DKIM, DMARC, one click unsubscribe and a spam rate threshold among its sender requirements Google sender rules ↗. Your email tool will walk you through adding the DNS records; do it before your first campaign.
- Only email people who signed up or bought from you
- Set up SPF, DKIM and DMARC on your domain
- Check how many AI credits your plan includes
- Fact check every AI draft, especially prices and dates
- Start with a welcome email automation before newsletters
- Watch for intro prices that rise after the first year, like Kit Pro's first year offer
What to look forward to
Email tools are adding AI agents that do more of the work. MailerLite's HeyLite insights, in beta, give personal recommendations on re-engaging subscribers, send times and deliverability MailerLite AI ↗. Brevo's Aura AI suggests audience segments and answers questions about your data in plain language Brevo pricing ↗. Klaviyo lists a Customer Agent that uses store data to help sell Klaviyo pricing ↗.
Expect these features to move down to cheaper plans, and expect more owners to run their email from a general AI assistant through MCP. We will update this guide as these features mature and our testing finishes.
The competition
Constant ContactStarts at $12/month
Constant Contact starts at $12 a month and includes an AI copy generator on every plan, with an AI campaign builder from the $35 Standard plan Constant Contact pricing ↗. It offers a no card trial and a 30 day money back guarantee, but its contact tier prices sit on a separate page and the useful AI tools cost more than MailerLite's Constant Contact pricing ↗.
ActiveCampaignNot stated (prices not displayed when checked)
ActiveCampaign has the deepest AI of the group, including an AI automation builder, AI campaign builder, AI content generation and predictive sending, plus a 14 day no card trial ActiveCampaign pricing ↗. Its pricing page did not display starting prices when we checked, and only the top tiers get unlimited AI use ActiveCampaign pricing ↗. It suits businesses with complex automations.
MailchimpStarts at $13/month; AI from $20/month
Mailchimp's Essentials plan, from $13 a month, is a common choice but does not include generative AI, so we point AI seekers to Standard instead Mailchimp pricing ↗.
KitFree; Creator $33/month
Kit's paid Creator plan, at $33 a month for 1,000 subscribers, costs nearly three times MailerLite's entry plan, and its pricing page lists no built in AI writing tools Kit pricing ↗ MailerLite pricing ↗. It fits creators who sell digital products.
Questions people ask
What is the best free email marketing tool?
Kit is free for up to 10,000 subscribers with unlimited broadcasts, but no automations Kit pricing ↗. MailerLite is free for 250 subscribers and includes limited AI subject lines MailerLite pricing ↗ MailerLite AI ↗. Brevo's free plan allows 300 emails a day Brevo pricing ↗.
Can AI write my marketing emails?
Yes, the first draft. MailerLite, Brevo and Mailchimp all include AI that drafts copy and subject lines on paid plans MailerLite AI ↗ Brevo pricing ↗ Mailchimp pricing ↗. Always review drafts for accuracy.
Does Mailchimp have AI?
Yes. Generative AI is included on Standard and Premium plans, and Intuit Assist is in beta for some users in select countries Mailchimp pricing ↗. Essentials and Free do not include generative AI Mailchimp pricing ↗.
What is AI send time optimization?
It sends each email when that subscriber is most likely to engage. MailerLite's smart sending uses past opens, clicks, sign up date and time zone MailerLite AI ↗. Brevo includes it from the Standard plan Brevo pricing ↗.
Do I need a business address in marketing emails?
Yes. CAN-SPAM requires a valid physical postal address in commercial emails, and penalties can reach $53,088 per violating email FTC CAN-SPAM ↗.
Is Klaviyo good for small businesses?
For online stores, yes. A May 2026 breakdown lists a free plan for 250 profiles and paid email from $20 a month Spoks on Klaviyo ↗. Service businesses usually do not need its e-commerce depth.
Where this comes from
Checked Oct 9, 2026. Vendor pages describe their own products; independent sources add outside views.
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