Lenny's Newsletter · Lenny Rachitsky
podcastplaybookHow we built Grok Bot in a month | Roman Ugarte (SpaceXAI)
8 September 2026Product
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About Lenny's NewsletterListen now | Roman Ugarte of SpaceXAI on going from first line of code to the world’s hottest AI product in seven weeks, and what it really takes to win in the most competitive market ever
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