AI search that makes 4 million products easily findable

A luxury resale marketplace brought in Valtech to rebuild search for a catalog of four million one-of-a-kind items. The result: shoppers find pieces faster, recommendations feel personal, and the platform now carries all search traffic — with room to grow into conversational shopping.

A discovery problem for a brand built around discovery

For a marketplace built on one-of-a-kind items, discovery isn't a nice-to-have. It's the entire value proposition.

This client's legacy search couldn't keep pace with four million unique items and months of behavioral data. Relevance suffered, zero-result searches piled up, and the data precision needed to properly surface inventory simply wasn't there.

Add strict data access controls and complex UI coordination, and the platform was constraining growth rather than enabling it. Every unfound item was a lost sale and a seller let down.

Making an enormous catalog feel personal

Valtech partnered with this client to replace legacy search with Google Cloud's AI Commerce Search, rebuilding the discovery stack from the ground up.

We rebuilt the ingestion pipelines, enriched product metadata across the full four-million-item catalog, and trained recommendation models to understand real product intent across an enormous and constantly changing inventory.

Because trust and precision matter on a marketplace like this, Valtech worked within the client's strict data access controls and coordinated closely on UI so the buying and selling experience stayed seamless throughout the rebuild.

Valtech also delivered merchandising controls, ongoing monitoring and structured A/B testing so every improvement was validated against the incumbent engine rather than taken on faith. The result is a discovery stack the client can tune with confidence.

The rebuild does more than fix today's search, too. It lays the foundation for AI-led personalization and conversational shopping experiences, without requiring another ground-up rebuild down the line.

The new platform now powers 100% of search traffic. The whole marketplace runs on it. Customers are finding relevant products more often, with fewer zero-result searches breaking their browsing. Recommendations now feel personal rather than generic, drawing on both enriched product data and shopper behavior.

Experience matters, and search is often the first impression a marketplace makes. For one-of-a-kind pieces, that impression has to feel personal. As a Google Cloud Premier Partner, Valtech knows how to design discovery experiences that make an enormous catalog feel like it was curated just for you.

See how we create AI-powered retail experiences with Google Cloud ➔