X nears completion of search code rewrite

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X is rewriting the source code for its search functionality, according to Feb. 21 post from Nikita Bier, head of product.

The move comes amid reports that X search has become less reliable in recent months.

Users have complained that X search is not returning relevant results and has become unusable in some contexts. Bier said in his post that his team is close to launching a new version of search, rebuilt to help handle the latest challenges.

As per Bier: “[Search has] been getting hammered by AI agents and has been choking at scale. We’re almost done with the full rewrite of legacy Twitter search (and also bot detection).

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