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YC Partner Boris Jabes Discusses AGI, Open-Source Models, and Founder Traits

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Boris Jabes (@borisjabes) co-founded Census, which raised $80M from Sequoia and a16z, and exited to Fivetran. Before that, he co-founded Meldium, raised only $1M, and sold it to LogMeIn. He is now a @ycombinator visiting partner. Boris is a legendary entrepreneur, an engineer's engineer, and a mensch. On episode three of Cars and Capitalists, Boris and I discuss: 02:43 - Optimism as a superpower 04:02 - Traits in winning YC founders 06:48 - Vibe coding isn't fun 12:22 - Stefan Zweig's Chess as allegory for AI psychosis 19:52 - Is AGI BS? 24:31 - Open-sourced models 28:44 - The secret to Boris' co-founder relationships

10:43 AM · May 19, 2026 View on X