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GemwithVespa

How Gem uses Vespa

ConfirmedVendor case study · Checked Nov 3, 2026
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The use case: how Gem deploys Vespa

GEM, a search engine for secondhand and vintage fashion, uses Vespa to power saved image-search alerts. Vespa matches each incoming listing against stored image searches using vector similarity thresholds and structured filters such as size and price, returning every qualifying saved search.

In the customer’s words

The ability for users to save image searches is something that would not exist at all if we hadn’t started with Vespa.
Sampo Karjalainen, Co-founder, GEM — Source

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Other public relationships recorded on usedby.

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More stories

Go straight to the source

Based on Vespa’s published case study. We check the public evidence; the results are reported by the vendor.

vespa.ai
Source published
Oct 28, 2026
Last checked
Nov 3, 2026
vespa.aiCaptured Vespa case study about GemOpen source capture
What the story claims, and what we checked

What we compared with the page.

  • The passage quoted aboveChecked

    Copied word for word from the page, near the name of Gem.

  • The publication dateChecked

    Read from the page’s own metadata, never guessed.

  • Gem uses VespaChecked

    Confirmed line.

  • The result itselfNot checked

    We quote it; we did not measure it.

With saved image-search alerts running on Vespa, GEM can now notify shoppers when matching items arrive, without requiring them to repeatedly search the marketplace.
From the page. vespa.ai