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Sierra, the customer service agent startup founded by Bret Taylor<\/a>, announced on Thursday that it has acquired the YC-backed French startup Fragment<\/a>, which helps businesses integrate AI into workflows.\u00a0<\/p>\n This is Sierra\u2019s third public acquisition. It previously bough Japan-based enterprise AI solutions company Opera Tech (which it acquired in late March<\/a>) and voice agent company Receptive AI (which it also announced it acquired in late March)<\/a>. Fragment co-founders Olivier Moindrot and Guillaume Genthail will be joining the Sierra team.\u00a0<\/p>\n In a blog post, Taylor and his co-founder, Clay Bavor, wrote that Moindrot and Genthail will bring \u201cvaluable strength\u201d to Sierra\u2019s \u201cagent development efforts in France.\u201d Terms of the deal were not announced. Pitchbook estimates that Fragment raised around $2 million through its seed round.<\/p>\n Taylor, who also serves as OpenAI\u2019s chairman of the board, co-founded Sierra alongside Google alum Bavor after stepping down as co-CEO of Salesforce in early 2023. The startup claims Casper, Clear, and Brex as customers, and has raised more than $630 million in funding to date<\/a>, from investors including Sequoia and Benchmark, giving it a $10 billion valuation.\u00a0<\/p>\n<\/div>\n