Startup Spotlight: Lexius makes checkout cameras count what never got scanned

David Elskamp and Liam Webster are narrowing a broad camera-AI pitch into checkout loss software that pairs existing cameras with register logs.

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Primary source: Y Combinator

Why it matters

Lexius is testing a capital-efficient route into physical AI: sell software against cameras and registers retailers already own, then prove value one missed scan at a time. Its checkout focus gives the founders a measurable wedge, but accuracy and independently verified deployment scale will decide whether the retrofit advantage holds.

A close-up view of a modern self-checkout counter with a person's hands placing items, one item resting subtly to the side of the scanner.

Lexius co-founders David Elskamp and Liam Webster are turning the security cameras retailers already own into checkout auditors, matching what passes through a lane against what appears in the register log.…

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