Announcing o11's backing from Y Combinator.
AI for Mailchimp
AI that builds the campaign inside Mailchimp.
- Generate and edit campaigns in the Mailchimp builder.
- Build audience segments from real signal, not guesses.
Campaigns
Email Create campaign
- Type: All
- Status: All
- Audience: All
Search campaigns
Newest first
| Name | Audience | Sent | Recipients | Open rate | Click rate | Status |
|---|---|---|---|---|---|---|
| April newsletter | All subscribers | DRAFT | — | — | — | DRAFT |
| Re-engagement campaign | Inactive 90d | DRAFT | 12,420 ppl | — | — | DRAFT |
| Spring product update | All subscribers | Apr 15 | 28,491 | 41.2% | 11.4% | SENT |
| Webinar reminder | Webinar registrants | Apr 12 | 1,847 | 64.8% | 22.7% | SENT |
| Customer survey Q2 | Active customers | Apr 08 | 4,128 | 38.2% | 14.1% | SENT |
| Free trial nudge — day 7 | Trial users (auto) | Apr 05 | 892 | 32.4% | 8.9% | ONGOING |
| Holiday gift guide draft | All subscribers | DRAFT | — | — | — | DRAFT |
Acme HQ · Standard plan
o11 for Mailchimp: an AI agent layer for lifecycle email execution
o11 is an AI execution layer that runs inside Mailchimp. The agent drafts campaigns, builds audiences, sets schedules, and edits journeys — without sending a lifecycle marketer into another tab to rewrite a brief into the campaign builder.
If you have searched for AI for Mailchimp, a Mailchimp AI agent, or an alternative to the built-in Mailchimp AI assistant that does more than suggest subject lines, the difference comes down to one question: does the AI write a draft you have to paste back in, or build the campaign in place?
What teams use o11 for in Mailchimp
- Campaign creation. Draft email content, layout, and subject lines directly in the campaign builder against the active brand and template.
- Audience segmentation. Build and refine segments from real contact behavior, not from a guess about who might open.
- Send-time and schedule work. Set sends, schedule resends to non-openers, and adjust journey timing in line with engagement patterns.
- Cross-system handoffs. Sync campaign performance into Sheets and a CRM without the marketer manually exporting CSVs.
Why o11 differs from Mailchimp-native AI
The Mailchimp AI assistant focuses on suggestion. It writes drafts, recommends sends, and proposes subject lines, but the work of building the campaign, fixing the segment, and approving the schedule still sits with a human clicking through the builder. o11 is built to drive the builder. The chat is the control surface, the campaign is where the work lands.
Built for teams that live across systems
Mailchimp is one part of a small business stack — usually paired with Shopify, Stripe, a CRM, and a Sheet of campaign results. o11 is positioned to act across all of them. A weekly newsletter can become a Mailchimp send, a Shopify segment refresh, a Slack note to the team, and the next row of a results sheet without the marketer stitching the tools together by hand.
Where Mailchimp teams typically start with o11
- Lifecycle marketers with weekly sends and journey edits.
- SMB founders running marketing themselves and needing speed.
- Ecommerce ops with post-purchase, win-back, and abandonment flows.
- Marketing leadership with campaign results and audience health.
How o11 respects Mailchimp permissions
The agent operates with the user’s own Mailchimp account and role. Audience access, user permissions, and contact compliance settings apply exactly the way they do for that user in the UI. Nothing is bypassed. That is what makes o11 safe to deploy on a contact list governed by consent and unsubscribe rules.
FAQ
How is this different from the built-in AI assistant?
It executes the campaign and segment edits end to end.
Who is it for?
Lifecycle, growth, and SMB marketing teams on Mailchimp.