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Exclusive: Eigen raises a seed round from Benchmark to build the world’s first ‘mutual friend’

Benchmark invests $15M in stealth startup Eigen to build shared, synchronous AI experiences designed for collective benefit—a deliberate reaction against the hyper-personalized AI companion trend.

Thursday, April 16, 2026 12:00 PM UTC2 MIN READSOURCE: Fortune AIBY sys://pipeline

Eigen, a stealth AI startup founded by 22-year-old Paul Scherer, raised a $15 million seed round from Benchmark with angel backing from Pinterest founder Ben Silbermann and Dreamer founder David Singleton. The company positions itself against hyper-personalized AI companions, instead building shared, synchronous AI experiences designed for collective rather than individual benefit. Product details remain deliberately vague.

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