A model trained from scratch on Colossus is one thing. A model trained from scratch on Colossus by a coding-focused team with $60 billion of acquisition money behind it is something else. That's what's shipping this week out of SpaceXAI's first major post-Cursor test: a jointly built AI coding model, no public name yet, emphasising fast information processing, currently being driven through internal review with Tesla and SpaceX employees as the test crew.
Per an internal staff memo first reported by The Information, the launch window is "as early as Wednesday" — a softer date than the previous version, which slipped so engineers could squeeze out more efficiency. Cursor CEO Michael Truell has been more direct: at a customer event he confirmed the model was trained from scratch on xAI's Colossus supercomputer, explicitly positioning it against Anthropic and OpenAI.
This is worth paying attention to. Here's why, what to actually do the moment it's available, and the part that doesn't change when the model underneath it does.
What we know — and what we don't
The internal memo doesn't name the model. That's not unusual for pre-launch memos, but it does mean that as of writing we have positioning, not specs. What The Information did surface:
