Nearly 63% of marketers now use AI tools in their email marketing efforts, yet most are still choosing the wrong platform for their specific needs. The best AI email marketing tools in 2024 are not all equal: some excel at predictive analytics, others at behavior-driven automation, and a few at CRM-native personalization. Choosing the wrong one means paying for features that don't match your workflow while leaving real performance gains on the table.
This guide breaks down the top platforms by use case, with real capability data, so you can match the right tool to your team.
Key Takeaways
The global email marketing market reached $10.89 billion in 2024, and automated email sequences generate 320% more revenue than non-automated emails.
81% of marketers say AI has improved their email marketing performance, according to HubSpot's State of Marketing 2024.
Brands using AI-driven personalization report up to 42% higher revenue, with click-through rates exceeding 13%, which can lift ROI by nearly 20%.
Research by McKinsey shows that organizations investing in AI are experiencing a sales ROI uplift of 10 to 20 percent.
Traditional email platforms require you to set send times, write subject lines, and segment your list manually. AI tools monitor what works and surface recommendations based on engagement data. The practical difference becomes significant at scale: manual personalization breaks down quickly when running campaigns across thousands of contacts with different roles, industries, and buying stages.
Why AI Email Marketing Tools Are Worth Your Attention in 2024
Email marketing delivers an average return of $36 for every dollar spent, making it a favored channel among marketers looking to maximize budget while achieving significant results. AI amplifies that baseline substantially.
AI-driven email marketing results in a 13% boost in click-through rates, and using AI for subject line optimization alone can boost open rates by up to 10%. Those are incremental gains that compound across your entire list every send.
In 2024, automated emails drove 37% of all email-generated sales, which shows the direct revenue impact of intelligent automation. The platforms that build AI into their core workflows, not just as a content generator bolt-on, are where the returns concentrate.
Nearly 63% of marketers now use AI tools in their email marketing efforts, yet most are still choosing the wrong platform for their specific needs. The best AI email marketing tools in 2024 are not all equal: some excel at predictive analytics, others at behavior-driven automation, and a few at CRM-native personalization. Choosing the wrong one means paying for features that don't match your workflow while leaving real performance gains on the table.
This guide breaks down the top platforms by use case, with real capability data, so you can match the right tool to your team.
Key Takeaways
The global email marketing market reached $10.89 billion in 2024, and automated email sequences generate 320% more revenue than non-automated emails.
81% of marketers say AI has improved their email marketing performance, according to HubSpot's State of Marketing 2024.
Brands using AI-driven personalization report up to 42% higher revenue, with click-through rates exceeding 13%, which can lift ROI by nearly 20%.
Research by McKinsey shows that organizations investing in AI are experiencing a sales ROI uplift of 10 to 20 percent.
Traditional email platforms require you to set send times, write subject lines, and segment your list manually. AI tools monitor what works and surface recommendations based on engagement data. The practical difference becomes significant at scale: manual personalization breaks down quickly when running campaigns across thousands of contacts with different roles, industries, and buying stages.
Why AI Email Marketing Tools Are Worth Your Attention in 2024
Email marketing delivers an average return of $36 for every dollar spent, making it a favored channel among marketers looking to maximize budget while achieving significant results. AI amplifies that baseline substantially.
AI-driven email marketing results in a 13% boost in click-through rates, and using AI for subject line optimization alone can boost open rates by up to 10%. Those are incremental gains that compound across your entire list every send.
In 2024, automated emails drove 37% of all email-generated sales, which shows the direct revenue impact of intelligent automation. The platforms that build AI into their core workflows, not just as a content generator bolt-on, are where the returns concentrate.
In practice, many AI email tools claim to be AI-powered but rely on basic automation rather than deep personalization. That distinction matters when you're evaluating vendors. The sections below cut through the marketing language.
The 6 Best AI Email Marketing Tools in 2024
1. Klaviyo: Best for E-commerce
Klaviyo is the default choice for product-based businesses, and its AI features are built specifically around purchase behavior and customer lifetime value.
Klaviyo automatically hones your strategy across audiences, channels, content, and timing with 40+ predictive and generative features. The standout capabilities sit in its predictive layer rather than its content generation.
Klaviyo's Predictive Analytics uses historical purchase and engagement data to forecast key customer metrics, such as Customer Lifetime Value (CLV), likelihood to purchase again, and churn probability. For e-commerce brands, those three metrics alone unlock highly targeted winback flows, VIP tiers, and replenishment sequences.
Klaviyo's Segments AI takes this further by allowing marketers to create precise audience segments simply by describing them in natural language. Instead of manually defining filters and conditions, you type prompts like "customers who purchased red wine in the last 90 days but have not engaged with our last two campaigns" and the AI builds the segment instantly.
Swirl Wine achieved a 14% increase in open rate and a 17% revenue uplift by letting AI determine send times.
Best for: D2C and e-commerce brands with at least 12 months of order history.
Pricing: Free plan for 250 contacts; paid plans from $20/month.
Limitation: The predictive analytics are world-class; the content generation is not there yet.
ActiveCampaign has the most granular automation builder of any email marketing platform. Its AI layer adds predictive sending, win probability scoring, and content recommendations on top of already-powerful if/then/else automation logic.
Its defining feature is Predictive Sending. Predictive Sending analyzes when each contact is most likely to engage, then automatically sends at those optimal times, boosting customers' click-through rates by 17% on average.
ActiveCampaign AI includes seven core features: AI Campaign Builder for generating personalized email campaigns in seconds, AI Automation Builder using natural language prompts, AI Brand Kits for personalization, AI-Suggested Segments for intelligent customer segmentation, Predictive Sending for optimal timing, Campaign Reporting Co-pilot for insights, and AI Content Generator for email text creation.
In practice, many AI email tools claim to be AI-powered but rely on basic automation rather than deep personalization. That distinction matters when you're evaluating vendors. The sections below cut through the marketing language.
The 6 Best AI Email Marketing Tools in 2024
1. Klaviyo: Best for E-commerce
Klaviyo is the default choice for product-based businesses, and its AI features are built specifically around purchase behavior and customer lifetime value.
Klaviyo automatically hones your strategy across audiences, channels, content, and timing with 40+ predictive and generative features. The standout capabilities sit in its predictive layer rather than its content generation.
Klaviyo's Predictive Analytics uses historical purchase and engagement data to forecast key customer metrics, such as Customer Lifetime Value (CLV), likelihood to purchase again, and churn probability. For e-commerce brands, those three metrics alone unlock highly targeted winback flows, VIP tiers, and replenishment sequences.
Klaviyo's Segments AI takes this further by allowing marketers to create precise audience segments simply by describing them in natural language. Instead of manually defining filters and conditions, you type prompts like "customers who purchased red wine in the last 90 days but have not engaged with our last two campaigns" and the AI builds the segment instantly.
Swirl Wine achieved a 14% increase in open rate and a 17% revenue uplift by letting AI determine send times.
Best for: D2C and e-commerce brands with at least 12 months of order history.
Pricing: Free plan for 250 contacts; paid plans from $20/month.
Limitation: The predictive analytics are world-class; the content generation is not there yet.
ActiveCampaign has the most granular automation builder of any email marketing platform. Its AI layer adds predictive sending, win probability scoring, and content recommendations on top of already-powerful if/then/else automation logic.
Its defining feature is Predictive Sending. Predictive Sending analyzes when each contact is most likely to engage, then automatically sends at those optimal times, boosting customers' click-through rates by 17% on average.
ActiveCampaign AI includes seven core features: AI Campaign Builder for generating personalized email campaigns in seconds, AI Automation Builder using natural language prompts, AI Brand Kits for personalization, AI-Suggested Segments for intelligent customer segmentation, Predictive Sending for optimal timing, Campaign Reporting Co-pilot for insights, and AI Content Generator for email text creation.
ActiveCampaign's engagement scoring includes score decay. A contact who was active 6 months ago but silent since then gradually drops in score without you having to configure decay rules manually. This matches how mailbox providers actually evaluate engagement. That matters for deliverability, not just targeting.
Best for: Growing businesses sending segmented campaigns, building multi-step workflows, scoring leads, or split-testing automations.
Pricing: Starter from $15/month; AI features (including Predictive Sending) require the Professional plan at $79/month.
3. HubSpot: Best for CRM-Driven Teams
HubSpot's advantage is CRM-native email marketing. Every email you send is automatically logged against the contact record, and the AI uses CRM data such as deal stage, last activity, and lifecycle stage to personalize content and timing.
Smart Content lets you dynamically swap email content based on a contact's lifecycle stage, industry, or deal status. Sales sequences trigger follow-up emails based on pipeline activity. Multi-touch attribution connects email performance to closed revenue.
The AI era changed the calculus for HubSpot because Breeze, its AI suite rebranded from various AI features in late 2024, can pull signal from across the entire platform. For teams where CRM data is rich, that cross-platform signal makes a meaningful difference in personalization depth.
Best for: B2B and SaaS teams that run sales and marketing from a single CRM.
Limitation: For teams focused primarily on email marketing rather than full-funnel CRM, HubSpot is significantly more expensive than every other alternative without proportionally better email-specific features.
If you're running a SaaS business, see our SaaS email marketing strategy guide for more on leveraging CRM-triggered campaigns.
4. Brevo: Best Budget Option for Multichannel Teams
Brevo (formerly Sendinblue) went wide on channels, adding SMS, WhatsApp, live chat, and a built-in CRM, positioning itself as the single platform for all customer communications. Pricing is structured around email volume instead of contact count.
AI-powered segmentation lets users build contact segments simply by describing an audience in plain language. The AI writing assistant handles subject lines and email copy generation across plans, and send-time optimization is available at lower tiers than most competitors.
Brevo's Business plan, at $18 to $65 per month depending on email volume, includes full branching automation, behavioral triggers, A/B testing, and landing pages. For a 3-person marketing team sending 20,000 emails per month, Brevo runs about $65 per month. HubSpot at comparable automation depth runs $890 per month. That's a 13x gap.
Best for: Small and mid-sized teams that need multichannel marketing at a predictable cost.
Limitation: AI-powered segmentation is only available on Enterprise plans.
5. Mailchimp: Best for Beginners and Small Businesses
Mailchimp remains the default starting point for email marketing, and its AI features have gotten meaningfully better. The AI Content Optimizer analyzes your draft against industry benchmarks and suggests subject lines, send times, and content length adjustments.
ActiveCampaign's engagement scoring includes score decay. A contact who was active 6 months ago but silent since then gradually drops in score without you having to configure decay rules manually. This matches how mailbox providers actually evaluate engagement. That matters for deliverability, not just targeting.
Best for: Growing businesses sending segmented campaigns, building multi-step workflows, scoring leads, or split-testing automations.
Pricing: Starter from $15/month; AI features (including Predictive Sending) require the Professional plan at $79/month.
3. HubSpot: Best for CRM-Driven Teams
HubSpot's advantage is CRM-native email marketing. Every email you send is automatically logged against the contact record, and the AI uses CRM data such as deal stage, last activity, and lifecycle stage to personalize content and timing.
Smart Content lets you dynamically swap email content based on a contact's lifecycle stage, industry, or deal status. Sales sequences trigger follow-up emails based on pipeline activity. Multi-touch attribution connects email performance to closed revenue.
The AI era changed the calculus for HubSpot because Breeze, its AI suite rebranded from various AI features in late 2024, can pull signal from across the entire platform. For teams where CRM data is rich, that cross-platform signal makes a meaningful difference in personalization depth.
Best for: B2B and SaaS teams that run sales and marketing from a single CRM.
Limitation: For teams focused primarily on email marketing rather than full-funnel CRM, HubSpot is significantly more expensive than every other alternative without proportionally better email-specific features.
If you're running a SaaS business, see our SaaS email marketing strategy guide for more on leveraging CRM-triggered campaigns.
4. Brevo: Best Budget Option for Multichannel Teams
Brevo (formerly Sendinblue) went wide on channels, adding SMS, WhatsApp, live chat, and a built-in CRM, positioning itself as the single platform for all customer communications. Pricing is structured around email volume instead of contact count.
AI-powered segmentation lets users build contact segments simply by describing an audience in plain language. The AI writing assistant handles subject lines and email copy generation across plans, and send-time optimization is available at lower tiers than most competitors.
Brevo's Business plan, at $18 to $65 per month depending on email volume, includes full branching automation, behavioral triggers, A/B testing, and landing pages. For a 3-person marketing team sending 20,000 emails per month, Brevo runs about $65 per month. HubSpot at comparable automation depth runs $890 per month. That's a 13x gap.
Best for: Small and mid-sized teams that need multichannel marketing at a predictable cost.
Limitation: AI-powered segmentation is only available on Enterprise plans.
5. Mailchimp: Best for Beginners and Small Businesses
Mailchimp remains the default starting point for email marketing, and its AI features have gotten meaningfully better. The AI Content Optimizer analyzes your draft against industry benchmarks and suggests subject lines, send times, and content length adjustments.
Mailchimp's AI lives in Intuit Assist and covers email copy generation, subject line suggestions, and send-time optimization. For teams whose main bottleneck is content production, Mailchimp can speed up drafting. Predicted segments and purchase likelihood scores add some audience intelligence for ecommerce-connected accounts.
The Customer Journey Builder lets you branch based on purchase behavior: if someone bought within 48 hours, they get a different follow-up than someone who just browsed.
Best for: Teams that are new to email marketing and need an accessible, polished platform.
Limitation: AI personalization is limited to merge tags and segment-based variants with no individual-level content adaptation. Automation becomes expensive at scale ($350/month for Premium).
6. Omnisend: Best for E-commerce SMS + Email
Omnisend combines abandoned cart flows, product recommendations, SMS marketing, and revenue attribution in one tool, with AI that is built for the e-commerce use case.
AI product recommendations increase sales by personalizing emails to match subscribers' interests. E-commerce-focused email platforms like Klaviyo and Omnisend tend to offer this option. Omnisend's edge over Klaviyo is its SMS and push notification integration at more accessible pricing.
Best for: E-commerce brands wanting a unified email and SMS workflow without Klaviyo's price point.
Limitation: Non-e-commerce businesses will find the feature set largely irrelevant. If you're B2B, a creator, or anything that doesn't involve selling products through an online store, look at ActiveCampaign, HubSpot, or Brevo instead.
What AI Actually Does in Email Marketing (and What It Doesn't)
Understanding what the AI layer actually handles helps you set realistic expectations before purchasing.
AI email marketing tools use machine learning to automate decisions that marketers previously made manually: when to send, what to say, and who should receive each message. The software learns from how recipients interact with campaigns and adjusts its recommendations automatically, rather than requiring you to reconfigure rules after every send.
The core AI jobs across most platforms include:
Subject line and preview testing at scale: generate variants, predict winners, and iterate faster.
Send-time optimization to hit inboxes when each contact is most likely to engage.
Behavior-based segmentation, grouping users by actions like visits, trials, purchases, and inactivity.
Personalization beyond merge fields: offer and angle changes based on role, industry, and intent signals.
What AI does not replace is strategy. Platforms do not decide your offer, your customer promise, or your brand voice. The marketers getting the best results from these tools use AI to execute faster on a clear strategy, not to substitute for one.
Mailchimp's AI lives in Intuit Assist and covers email copy generation, subject line suggestions, and send-time optimization. For teams whose main bottleneck is content production, Mailchimp can speed up drafting. Predicted segments and purchase likelihood scores add some audience intelligence for ecommerce-connected accounts.
The Customer Journey Builder lets you branch based on purchase behavior: if someone bought within 48 hours, they get a different follow-up than someone who just browsed.
Best for: Teams that are new to email marketing and need an accessible, polished platform.
Limitation: AI personalization is limited to merge tags and segment-based variants with no individual-level content adaptation. Automation becomes expensive at scale ($350/month for Premium).
6. Omnisend: Best for E-commerce SMS + Email
Omnisend combines abandoned cart flows, product recommendations, SMS marketing, and revenue attribution in one tool, with AI that is built for the e-commerce use case.
AI product recommendations increase sales by personalizing emails to match subscribers' interests. E-commerce-focused email platforms like Klaviyo and Omnisend tend to offer this option. Omnisend's edge over Klaviyo is its SMS and push notification integration at more accessible pricing.
Best for: E-commerce brands wanting a unified email and SMS workflow without Klaviyo's price point.
Limitation: Non-e-commerce businesses will find the feature set largely irrelevant. If you're B2B, a creator, or anything that doesn't involve selling products through an online store, look at ActiveCampaign, HubSpot, or Brevo instead.
What AI Actually Does in Email Marketing (and What It Doesn't)
Understanding what the AI layer actually handles helps you set realistic expectations before purchasing.
AI email marketing tools use machine learning to automate decisions that marketers previously made manually: when to send, what to say, and who should receive each message. The software learns from how recipients interact with campaigns and adjusts its recommendations automatically, rather than requiring you to reconfigure rules after every send.
The core AI jobs across most platforms include:
Subject line and preview testing at scale: generate variants, predict winners, and iterate faster.
Send-time optimization to hit inboxes when each contact is most likely to engage.
Behavior-based segmentation, grouping users by actions like visits, trials, purchases, and inactivity.
Personalization beyond merge fields: offer and angle changes based on role, industry, and intent signals.
What AI does not replace is strategy. Platforms do not decide your offer, your customer promise, or your brand voice. The marketers getting the best results from these tools use AI to execute faster on a clear strategy, not to substitute for one.
For a broader view of how to structure that strategy, see our email marketing strategy template for 2025 and our guide on AI tools for email campaign templates.
How to Choose the Right Tool for Your Team
The best AI email marketing tool depends on your use case, not a feature checklist. Here's a simple framework:
The right setup depends on your email motion (lifecycle, newsletter, outbound), volume, data quality, and how much you want to automate versus review. There is no single "best" AI email marketing tool. Only tools that fit your workflow better than others.
Frequently Asked Questions
What is the best AI email marketing tool in 2024?
There is no single best answer. Your best fit depends on priorities: ActiveCampaign for deep automation, Klaviyo for e-commerce, and HubSpot for CRM-first teams. Mailchimp is the most accessible starting point for smaller budgets, and Brevo offers the best value for multichannel teams on volume-based sending.
How much do AI email marketing tools cost?
Pricing varies widely. Brevo starts at $17 per month for 10,000 emails. ActiveCampaign's Starter plan begins at $15 per month for 1,000 contacts with annual billing. Klaviyo offers a free plan for 250 contacts with paid plans from $20 per month. HubSpot starts at $15 per month but the Professional plan starts at $890 per month with a mandatory $3,000 onboarding fee.
Does AI actually improve email marketing ROI?
Yes, when used correctly. Email marketing generates between $36 and $40 for every dollar spent according to multiple industry sources, translating to a 3,600% to 4,000% return on investment. AI compounds that by improving targeting, timing, and content relevance. Brands using AI-driven personalization report up to 42% higher revenue, with click-through rates exceeding 13%.
What AI features should I look for in an email marketing tool?
Prioritize features that directly affect deliverability and engagement: predictive send-time optimization, behavior-based segmentation, and AI-suggested audience splits. Content generation tools are useful for speed but many AI email tools claim to be AI-powered but rely on basic automation rather than deep personalization, so look for platforms where AI connects to your real customer data rather than generating generic copy from a prompt.
For a broader view of how to structure that strategy, see our email marketing strategy template for 2025 and our guide on AI tools for email campaign templates.
How to Choose the Right Tool for Your Team
The best AI email marketing tool depends on your use case, not a feature checklist. Here's a simple framework:
The right setup depends on your email motion (lifecycle, newsletter, outbound), volume, data quality, and how much you want to automate versus review. There is no single "best" AI email marketing tool. Only tools that fit your workflow better than others.
Frequently Asked Questions
What is the best AI email marketing tool in 2024?
There is no single best answer. Your best fit depends on priorities: ActiveCampaign for deep automation, Klaviyo for e-commerce, and HubSpot for CRM-first teams. Mailchimp is the most accessible starting point for smaller budgets, and Brevo offers the best value for multichannel teams on volume-based sending.
How much do AI email marketing tools cost?
Pricing varies widely. Brevo starts at $17 per month for 10,000 emails. ActiveCampaign's Starter plan begins at $15 per month for 1,000 contacts with annual billing. Klaviyo offers a free plan for 250 contacts with paid plans from $20 per month. HubSpot starts at $15 per month but the Professional plan starts at $890 per month with a mandatory $3,000 onboarding fee.
Does AI actually improve email marketing ROI?
Yes, when used correctly. Email marketing generates between $36 and $40 for every dollar spent according to multiple industry sources, translating to a 3,600% to 4,000% return on investment. AI compounds that by improving targeting, timing, and content relevance. Brands using AI-driven personalization report up to 42% higher revenue, with click-through rates exceeding 13%.
What AI features should I look for in an email marketing tool?
Prioritize features that directly affect deliverability and engagement: predictive send-time optimization, behavior-based segmentation, and AI-suggested audience splits. Content generation tools are useful for speed but many AI email tools claim to be AI-powered but rely on basic automation rather than deep personalization, so look for platforms where AI connects to your real customer data rather than generating generic copy from a prompt.
