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Inside the collapse of Microsoft-backed UK tech unicorn Builder.ai

Sachin Dev Duggal. Photo: Stefanie Keenan/Getty Images
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The Financial Times

5 min read

Top investors including Qatar are realising they may have backed a business that largely reported artificial revenues

20 May, 2025 by Alexandra Heal and Robert Smith in London

Sachin Dev Duggal, the founder and self-proclaimed “chief wizard” of Builder.ai, raised over half a billion dollars from some of the world’s top technology investors with a simple pitch: it could use artificial intelligence to make building apps “as easy as

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