Composer

#6 in AI Marketing & Sales

Klaviyo · 2× · last seen Aug 25, 2026

67

Momentum

Composer is an AI marketing agent by Klaviyo that generates complete, ready-to-send marketing campaigns (email/SMS) from simple text input. The tool analyzes an account's flows, segments, and forms, identifies revenue opportunities, and creates campaign content including subject lines, copy, images, target audiences, and send logic that must be reviewed by the user before going live. Composer was announced on March 24, 2026, and entered public beta on June 30, 2026; it is integrated directly into the Klaviyo platform and uses a credit-based billing model. The product is distinct from Klaviyo's separate "Marketing Agent" (launched September 2025) and the "Customer Agent" (service bot).

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