Brevo vs Mailchimp: An Honest Comparison (2025)

Choose Brevo if: Budget matters, your list is growing and you want predictable costs, or you need a free plan that works for a real subscriber base (not just 500 contacts). Brevo's pricing model — by email volume, not contact count — keeps costs lower as lists grow.

Choose Mailchimp if: You value the best AI email copywriting tools in the category, need the most polished template library and design tools, or are already integrated with Mailchimp's extensive third-party app ecosystem.

Choose neither if: You run a Shopify store with serious email revenue goals — Klaviyo is the better tool. Or if you host webinars as a lead generation strategy — GetResponse bundles these better.

The pricing difference between Brevo and Mailchimp becomes significant at scale. Let's compare directly:

At 1,000 contacts:

• Brevo: Free (under 9,000 emails/month)
• Mailchimp: Free (under 1,000 sends/month) → Essentials $13/month at 1,001 contacts

At 5,000 contacts:

• Brevo: Starter $9/month (unlimited emails)
• Mailchimp: Essentials ~$45/month

At 10,000 contacts:

• Brevo: Starter $9/month (scales by volume, not contacts)
• Mailchimp: Standard ~$80/month

At 25,000 contacts:

• Brevo: Business $18/month for moderate send volume
• Mailchimp: Standard ~$230/month

The pricing divergence is dramatic at higher contact counts. Brevo charges by email volume (how many emails you send) rather than contact count (how many subscribers you have). For businesses with large lists but moderate send frequency, Brevo's cost advantage compounds with list growth.

Brevo free plan: Unlimited contacts, 300 emails/day, basic automation. Genuinely useful for ongoing operations.

Mailchimp free plan: 500 contacts, 1,000 sends/month. Barely useful as a starting point for a real list.

Winner on pricing: Brevo, by a significant margin at any list size over 1,000 contacts.

Both tools have invested in AI, but the implementations are different and serve different needs.

Mailchimp AI features:

• Content Optimizer: Scans your email and gives sentence-level suggestions for improving clarity, engagement, and length. The suggestions are genuinely useful and specific — not just generic 'add more personalization' advice
• Generative AI email assistant: Produces full email drafts from a brief description. The output quality is among the best in email marketing tools — drafts are coherent, structured, and require less editing than competitors
• Creative Assistant: Generates on-brand images from your existing brand assets
• Smart Send Time: Uses subscriber behavior data to optimize send timing per recipient

Brevo AI features:

• Subject line generator: Predicts open rates for different subject line options
• Send-time optimization: Schedules emails for each subscriber's optimal time
• AI email content generator: Produces draft email copy (quality is decent but not as polished as Mailchimp's)

Practical difference: If you write all your own emails and want AI to help you write better, Mailchimp's Content Optimizer and email generator are meaningfully better. If you primarily want AI to optimize send timing and subject lines rather than the copy itself, the tools are roughly equivalent.

Winner on AI copy quality: Mailchimp. The Content Optimizer is the clearest differentiator.

Both tools support the automation sequences most small businesses need:

Both support: Welcome series, abandoned cart emails (with ecommerce integration), post-purchase follow-ups, re-engagement campaigns, behavioral triggers, and tag-based segmentation.

Brevo advantages:

• More advanced automation at lower price tiers (complex multi-step sequences available on Business plan)
• Transactional email built in (order confirmations, password resets) — Mailchimp charges separately for transactional
• SMS and WhatsApp messaging in the same platform

Mailchimp advantages:

• Customer Journey Builder — a visual automation canvas that's more intuitive for building complex sequences
• Predictive segmentation (predicts purchase likelihood, predicted LTV) on Standard+ plans
• More sophisticated multi-channel campaign coordination

For standard solopreneur or small business automation needs (welcome sequence + basic behavioral triggers), both tools deliver equally. Mailchimp's advantage in automation complexity only materializes at Standard plan pricing ($20/month) where the price premium over Brevo is already significant.

Winner on automation: Tie for standard use cases. Mailchimp for complex multi-step journeys.

Template quality and design tools are where Mailchimp's investment in UX shows clearly.

Mailchimp has 100+ professionally designed email templates across categories — promotional, newsletters, announcements, seasonal. The drag-and-drop editor is polished and intuitive. The Creative Assistant generates on-brand design elements from your brand's color and font assets.

Brevo has a functional template library and drag-and-drop editor. The templates are clean but less varied than Mailchimp's. For businesses that care about email design as a brand expression, Mailchimp's library is noticeably stronger.

Winner on templates and design: Mailchimp.

Here's the decision guide:

List under 500 contacts and budget is zero: Mailchimp free barely covers this; Brevo free is better (unlimited contacts). But either works at tiny list size.

List growing past 1,000 contacts: Brevo. The pricing advantage compounds with every 1,000 subscribers added.

You write careful email copy and want AI to improve it: Mailchimp's Content Optimizer is worth the premium if you send weekly and take email quality seriously.

Already on Mailchimp under 3,000 contacts: Stay. Migrating saves $10-30/month — not worth the effort at small scale.

On Mailchimp, 10,000+ contacts: Run the math. At 10,000 contacts, you're likely paying $75-120/month on Mailchimp versus $9-18/month on Brevo for equivalent send volume. At $60-100/month savings, migration pays off within 1-2 months.

Running transactional email alongside marketing: Brevo. It handles both in the same platform; Mailchimp charges extra for transactional via Mandrill.

Bottom line: Brevo is the better economic choice for most small businesses. Mailchimp is worth the premium only if you're actively using the AI copy tools and design features that justify the cost difference.