How we search a face across 1 billion photos in under a second (with FAISS)
This story is from 2026-08-27. It is preserved in the archive; the latest stories are on the live feed.
Disclosure: I'm the founder of Face2social , a face-recognition search engine. This post is about the vector-search engineering behind it — no product pitch, just the stuff that kept me up at night (including the part where I tell you what we're bad at). It's also the write-up I wish I'd found when…
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- 2026-08-27 19:11 · DEV Community — Machine Learning
How we search a face across 1 billion photos in under a second (with FAISS)