The best AI email marketing tools help you write campaigns faster, segment subscribers by behaviour, send at better times and run automated journeys such as welcome series and abandoned-cart reminders. This guide compares ten widely used platforms, from Mailchimp and Klaviyo to Brevo and Kit, and explains how to pick one that fits your business.
Why AI matters in email marketing
Email is still one of the few channels where you own the audience. Traditional email marketing relies on manual segments, fixed send times and one version of each message. AI changes each step:
- Writing: AI drafts subject lines, body copy and variations to test.
- Segmentation: Platforms group subscribers by behaviour, such as recent purchases or browsing, and some predict who is likely to buy again.
- Timing and testing: Tools test versions automatically and send the one that performs best.
- Journeys: Automated flows react to what each person does, for example sending a reminder when a cart is abandoned.
Marketing is one of the most common uses of AI in business. According to Eurostat, 34.70% of EU enterprises that used AI in 2025 used it for marketing or sales. Treat AI copy as a draft, though. In the Stack Overflow 2025 Developer Survey, 46% of developers said they distrust the accuracy of AI tools, so check offers, prices and claims in every AI-written email before it goes out.
Benchmarks and the rules that matter
Know what normal looks like before you judge a tool. Mailchimp's email marketing benchmarks, based on data as of December 2023, put the average open rate across all its users at 35.63% and the average click rate at 2.62%. Mailchimp notes that open rates may be affected by Apple's Mail Privacy Protection, which is why clicks and conversions are better measures of success.
Deliverability rules have also tightened. Google's email sender guidelines ask everyone sending to Gmail to keep spam rates reported in Postmaster Tools below 0.3%. Since 1 February 2024, senders of more than 5,000 messages a day must also authenticate their email and support one-click unsubscribe for marketing messages. Any tool you choose should make these settings easy.
The best AI email marketing tools
Each of the tools below offers AI features, but they are built for different businesses. Plans and prices change often, so check each vendor's current pricing page.
Mailchimp
Mailchimp is an email and SMS marketing platform with generative AI features, marketing automation and predictive segmentation on higher plans. It now promotes Intuit Intelligence, in beta for some paid plans, to suggest opportunities such as winning back customers who have gone quiet. Mailchimp notes that some AI features work in English only. It suits beginners and small businesses that want an easy start.
ActiveCampaign
ActiveCampaign is a marketing automation platform that now offers AI agents to handle email, SMS, WhatsApp and other channels. It tests sends automatically and builds automated customer journeys. It suits businesses with longer sales cycles that need detailed automation and CRM-style contact data.
Klaviyo
Klaviyo calls itself a B2C CRM, combining email, SMS and WhatsApp marketing with customer data and K:AI agents, including a marketing agent called Composer. It suits online stores that want messages driven by browsing and purchase data.
HubSpot email marketing
HubSpot offers free email marketing software as part of its CRM platform, with tools to design, personalise and optimise campaigns and to automate marketing with AI. It suits businesses that want email, CRM and sales data in one place.
Brevo
Brevo combines email and SMS marketing, WhatsApp, automation, CRM, live chat and transactional email, with AI features and Aura AI agents for marketing, sales and support. It suits small and mid-sized businesses that want several channels in one platform.
Kit
Kit is built for creators. It covers email marketing, automation, landing pages, analytics and digital product sales, with AI features in the product. It suits writers, coaches and course creators who sell to an email list.
Omnisend
Omnisend is email and SMS marketing software for ecommerce brands on Shopify, WooCommerce and other platforms. Its Omnisend AI features help build forms, spot audience trends and surface insights. It suits online stores that want ecommerce automations without a complex setup.
GetResponse
GetResponse covers AI email marketing, AI autoresponders, landing pages, a website builder, webinars and course creation tools. It suits businesses that want email, lead capture and content sales in one product.
Drip
Drip is email marketing and automation for ecommerce. It offers ready-made flows such as welcome, abandoned cart and win-back series, segments that update from what customers buy and browse, and AI help through a connection to AI assistants. It suits online stores that want focused ecommerce email.
Moosend
Moosend offers email marketing, marketing automation, segmentation, A/B testing and reporting, with Moosend AI for generating content and product recommendations. It suits smaller teams that want a straightforward platform with automation built in.
Which AI email tool fits your business?
| Business type | Tools to shortlist |
|---|---|
| Online stores | Klaviyo, Omnisend, Drip |
| B2B and longer sales cycles | ActiveCampaign, HubSpot |
| Creators and newsletters | Kit, GetResponse |
| Small businesses starting out | Mailchimp, Brevo, Moosend |
Match the depth of AI to your maturity. If you send one newsletter a month, AI subject lines and a welcome series are plenty. If you have thousands of customers and purchase data, predictive segments and behaviour-based flows start to pay off. Online stores can find more on this in AI marketing for ecommerce.
How to choose an AI email platform
- Check integrations: Your store, CRM, website forms and payment tools should send data to the platform automatically.
- Check deliverability support: Look for easy domain authentication, one-click unsubscribe and clear spam reporting.
- Test the AI copy: Give each shortlisted tool the same brief and compare the drafts against your brand voice.
- Look at the pricing model: Most platforms charge by contacts or sends, so model your list size a year from now.
- Think about channels: If you also need SMS or WhatsApp, a multichannel platform may save running two tools.
Common email marketing mistakes
- Buying or scraping lists: It damages deliverability and breaks privacy rules.
- Judging by opens alone: Privacy features inflate opens. Track clicks, replies and sales.
- Sending AI copy unchecked: Wrong prices, dates or claims cost trust quickly.
- Ignoring consent: In India, most duties under the Digital Personal Data Protection Act, 2023 apply from 13 May 2027 under the DPDP Rules, 2025. Record how each subscriber signed up and make unsubscribing easy.
- Never cleaning the list: Remove addresses that have not engaged for a long time, after a final re-engagement attempt.
What drives the cost of email marketing tools
- List size: The number of contacts is the main price driver on most platforms.
- Send volume: Some plans cap monthly sends.
- Features: Predictive segments, advanced automation and AI agents usually sit on higher plans.
- Extra channels: SMS and WhatsApp are usually charged separately.
- Setup time: Templates, flows and integrations take skilled time to build well.
Beyond tools: custom AI email marketing
Off-the-shelf platforms cover most needs. Businesses with unusual customer journeys, their own data sources or strict data rules sometimes need email connected more deeply to their own systems. Brainguru's AI for email marketing service plans and builds campaigns and flows, and our AI marketing automation work connects email with your CRM and other channels. If you are still choosing a CRM, see our guide to the best AI CRM tools for small business, and for list growth, our guide to the best AI lead generation tools.