What is an AI email copy generator?
An AI email copy generator is a tool that drafts email marketing subject lines, preview text, body copy, and CTAs automatically. Give it your brand guidelines and a goal or idea—a product to feature, an audience to win back, or a sale to promote—and it produces on-brand email copy options that align with your voice and tone.
Why an AI email copy generator matters
Writing copy is just one task in a longer chain of email campaign production that also includes designing creative, building segments, choosing channels, coordinating timing, getting approvals, and going live.
An AI email copy generator helps you kick off the process faster and brainstorm copy for repetitive marketing content, freeing up your team to focus on more creative campaign copywriting that requires a human touch.
A few benefits of using an AI email copy generator:
- Faster first drafts: subject lines, body copy, and CTA options generated in minutes
- Less back-and-forth: multi-turn refinement in a single session instead of revision rounds across tools
- Copy that reflects your brand: outputs grounded in your voice and tone guidelines, performance history, and product catalog
Why choose Klaviyo for AI email copy generation
Composer, Klaviyo's AI marketing agent, starts with your customer data, your segments, your catalog, and your performance history already loaded. It generates email campaigns that reflect what your customers have done, what's converted before, and what your brand actually sounds like.
Note: Composer is currently in private beta.
Copy built from your customer data
When you brief or prompt Composer, it pulls your actual Klaviyo segments, product catalog, and performance history into context before it generates a single word. A spring reactivation email, for example, pulls from who hasn't purchased in 90 days, what they've browsed, and what messaging has moved them before.
A full email campaign in one session
Email copy is important, but so is everything else. Composer doesn’t stop at writing words. It also builds the audience, drafts channel-appropriate content across email and text messaging, coordinates timing, and stages all of it for review. If you upload a product photo, it reads the image, pulls your brand settings, and builds the campaign from there. If you need to refine as you go, Composer adjusts in a multi-turn conversation.
14+ years of marketing intelligence in every output
Composer is grounded in more than your account data. Every campaign it generates reflects 14+ years of marketing intelligence and billions of consumer interactions across Klaviyo's 193,000 brands. That means outputs reflect what's proven to work across real B2C campaigns.
Key features of Klaviyo's AI email copy generator
Feature | Description | Available with Klaviyo |
|---|---|---|
Prompt-to-campaign generation | Based on a prompt, goal, or idea, builds a complete email campaign covering audience, copy, channel coordination, and timing in one session | ✅ |
Multi-turn conversation | Refines campaigns based on follow-up messages without starting over, like adjusting copy, swapping channels, or tightening CTAs | ✅ |
Human-in-the-loop review | Stages every campaign for review and captures a full audit trail before publishing, so nothing goes live without your sign-off | ✅ |
How to get started with Klaviyo's AI email copy generator
To get started with Klaviyo Composer:
- Review your documentation. Make sure your brand, compliance, and content guardrails are up to date. Composer uses these as the foundation for every idea, along with your customer data and product catalog when you're using the built-in version.
- Describe your goal. Type what kind of email campaign you want in plain language, like a product launch or a seasonal promotion. Composer works from a brief, goal, or free-form idea.
- Review the campaign assets. Composer returns a complete email campaign with a subject line, on-brand copy and design, and a suggested audience and channel cadence.
- Refine with follow-up prompts. If something needs adjusting, describe the change and wait for Composer to update the output.
- Approve and launch. Review the final email campaign, make any edits in the drag-and-drop editor, and launch when you're ready.
Ready to stop spending time on production and start launching email campaigns from a single brief? Get started with Klaviyo Composer today.