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Published April 23, 2026 at 9:00 PM

TechCrunch

Apr 24, 2026, 6:00 AM

Bret Taylor’s Sierra buys YC-backed AI startup Fragment

Bret Taylor’s Sierra buys YC-backed AI startup Fragment

Sierra, the AI customer service agent startup founded by technologist Bret Taylor, announced today that it has acquired the YC-backed French startup Fragment.

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Canonical URL for this story: https://techcrunch.com/2026/04/23/bret-taylors-sierra-buys-yc-backed-ai-startup-fragment/