How we built Grok Bot in a month | Roman Ugarte (SpaceXAI)

Lenny Rachitsky interviews Roman Ugarte, the engineer at xAI who took Grok Bot from a blank repo to public launch in roughly seven weeks. The conversation covers a decision that a lot of teams building coding agents face right now: whether to build a standalone product or ship inside an existing editor like Cursor. Ugarte explains why the team chose to go standalone, along with the early product bets that ended up driving adoption once the tool was live. He also talks through personally onboarding the first 300 users, a detail that says as much about early-stage product work as any of the technical choices: at that stage, someone on the founding team is still doing support and watching usage by hand. For engineers evaluating how fast a small team can realistically take an agent product from zero to a public launch, this is a specific, recent data point rather than a general playbook, and the standalone-versus-plugin tradeoff is one worth reading in full.