Klaviyo K:AI Marketing Agent (Composer)
Describe a campaign in plain language — Klaviyo's agent builds a launch-ready email/SMS campaign with audiences and messaging, no prompts required.
Klaviyo's K:AI Marketing Agent, powered by Composer (launched March 24, 2026), is an autonomous agentic experience inside Klaviyo's B2C CRM. A marketer describes an outcome in plain language — 'build a fun spring re-activation campaign targeting lapsed customers across email and text' — and Composer generates a launch-ready campaign or flow: audience segments and channel-optimized messaging informed by customer data and behavioral signals, in minutes rather than days. The same conversational interface diagnoses existing flows, telling you exactly where a sequence is losing customers and what to fix. Nothing goes live without human approval. Shipped alongside Customer Agent and 75+ new platform features.
What it does
Klaviyo’s Marketing Agent turns a plain-language goal into a launch-ready campaign. Composer builds the audience, writes the messaging, and coordinates it across email and SMS using the brand’s own customer data — then lets a human review before anything sends.
What you get
- Full campaigns and flows generated from a single natural-language prompt
- Audience segments and channel-optimized messaging built from customer + behavioral data
- Flow diagnosis: ask where a sequence is losing customers and get the specific fix
- Human-approval gate before launch
- Part of Klaviyo’s broader K:AI agent suite (Marketing Agent + Customer Agent)
Why it matters
This is the “hand goals to software that plans and runs the work” shift, coming from an incumbent B2C CRM with the customer data to back it. It’s distinct from Klaviyo’s earlier predictive AI: Composer actually assembles the campaign. For ecommerce and lifecycle marketers already on Klaviyo, it collapses days of campaign build into minutes.