Nick Miller, Lead Field Engineer at SpaceXAI, joins us in the studio at Agent Conf 2026 in Warsaw to discuss Cursor's move into SpaceXAI and the engineering experience behind Grok Bot.
We talk about how access to Colossus changed for Cursor's model team, how the companies' products fit together, and the browser capabilities that enable agents to act on websites. Nick also explains how the team drew on its work at Cursor to take Grok Bot to an internal beta in about a month.
Cursor's place within SpaceXAI
Nick describes a relationship that began with access to Colossus for model training and grew into an acquisition. Cursor brought its coding tools and desktop agent experience; SpaceXAI brought its broader AI products and infrastructure.
At the time of the interview, the teams were still working through questions about their brands, subscriptions, and a unified platform. Nick explains why their different product focuses gave them room to collaborate.
What Colossus changed for model training
Access to compute had limited the model experiments that Cursor could run. Nick explains how Colossus gave the team more capacity to train models and explore different approaches.
He describes the progression from Cursor's Tab autocomplete model and code-focused Composer models to collaboration on general-purpose Grok models. We also discuss whether adding compute and training data will keep improving model capabilities, a question Nick says remains open.
The Cursor experience behind Grok Bot
The team had already spent years building Cursor's agent harnesses, the software that connects models to tools and manages how they act. Its experience with computer use included a built-in browser in Cursor's desktop app.
Nick says that accumulated experience contributed to Grok Bot reaching an internal beta in about a month. He explains how earlier engineering work carried over to the new product's browser capabilities.
Browser interactions alongside APIs and MCP
Grok Bot's bots run in an isolated virtual machine environment. Nick describes how that controlled environment fits into the team's approach to computer use.
The team wanted bots to handle work through whichever interface was available: an API, a Model Context Protocol (MCP) server, or the browser interface a person would use. We ask what went into that browser experience and why it was a priority during development.
About the guest
Nick Miller is Lead Field Engineer at SpaceXAI. At Agent Conf 2026, he presented "Building a Software Factory with Cursor, xAI, and Grok Bot." This studio interview follows up on the company relationship and the engineering behind the tools.
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