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Silicon Valley’s AI wunderkind launches Underdog, the most private Instinct/Muse competitor yet

TechCrunch · Oct 6, 2026, 8:47 PM UTC

Sigil Wen, backed by a Silicon Valley who's who, has built an on-device AI assistant that promises to be free, fully private, and capable for everyday tasks.

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Silicon Valley’s AI wunderkind launches Underdog, the most private Instinct/Muse competitor yet

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Reflection's Beam becomes the most capable open-weight model built outside China

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