Personalization engines · Athos Commerce (formerly Klevu)

Klevu

AI-powered ecommerce search and category-merchandising platform whose one-to-one personalization sits on top of search ranking.

Visit Klevu Alternatives

Klevu is an ecommerce site-search and merchandising platform: it handles on-site search, category-page sorting and product recommendations for retailers, using NLP and machine learning to interpret shopper queries. Personalization is a layer on this same system rather than a separate product: a one-to-one personalization engine uses first-party cookie tracking and behavioral signals (clicks, checkouts) to adjust search results and category rankings per shopper, and category merchandising can also weigh conversion likelihood, margin and inventory. As with other vendors in this category, a buyer choosing Klevu for personalization is really choosing a search-and-merchandising engine with personalization as one output. In 2024 Klevu was united with Searchspring and Intelligent Reach under a new holding company, Athos Commerce, though the Klevu product and brand continue to operate and ship under the klevu.com domain. It is a cloud SaaS product with no self-hosted option and no public pricing.

At a glance

Vendor Athos Commerce (formerly Klevu)
Pricing model Quote only
Free tier —
Deployment Cloud
Open source No
Best for Mid-market and enterprise retailers wanting AI search with per-shopper personalization built in.

Pricing

No public pricing; plans are scoped through a sales conversation, now handled via parent company Athos Commerce.

Pricing has not been verified yet — see the vendor's site.

Features

  • NLP-driven on-site search
  • One-to-one personalization from first-party behavioral data
  • Category-page merchandising by conversion, margin and inventory
  • Product recommendations across the shopping journey
  • A/B testing on search and merchandising changes
  • Prebuilt integrations for major ecommerce platforms

Integrations

Profile last reviewed September 21, 2026

Alternatives

Constructor Ecommerce search and product-discovery platform whose ranking is trained on clickstream data, with personalization as one layer. Coveo Enterprise relevance platform spanning site search, ecommerce and workplace search, with machine-learning personalization layered on top. Bloomreach Discovery AI-driven ecommerce search and merchandising product whose real-time personalization draws on Bloomreach's customer data engine.

Klevu in the index now

Terms to know

Customer segmentation Dividing a customer base into groups that share meaningful traits so each can be targeted or served differently. A/B testing A controlled experiment that compares two variants to measure which one produces a better outcome.

Related guides

How to choose a personalization engine Most tools sold as personalization engines are search and merchandising platforms with a personalization layer on top — know which job you're buying.