SpaceX will feed its internal engineering data into the next major training run for Grok, the AI model now folded into SpaceX following February's merger with xAI, according to Elon Musk.
What Happened
Musk announced on X that SpaceX's "massive corpus of world-class engineering data," excluding material restricted under U.S. arms export law, will be added during supplemental training of the "2T run." The reference is to a roughly two-trillion parameter model that would nearly double the parameters behind Grok 4.5, which launched July 8. Material excluded from this training falls under the International Traffic in Arms Regulations (ITAR), likely ruling out propulsion specifics for Merlin and Raptor engines along with guidance and control details for SpaceX's launch vehicles. What remains on the table includes manufacturing knowledge, materials science, and Starlink hardware design. Musk said the two-trillion parameter run is in its final training phase and expected to wrap this week.
Why It Matters
The announcement extends a pattern across Musk's portfolio companies: Tesla supplies real-world driving data and manufacturing expertise, X supplies conversational data, and now SpaceX contributes aerospace engineering data built since 2002. For Starlink specifically, the inclusion of hardware design knowledge could sharpen Grok's understanding of satellite constellation systems—potentially useful for addressing service issues or optimizing network performance. The move also reinforces how SpaceX's June Nasdaq debut positioned Grok and xAI's Colossus supercomputer as central to the company's investor pitch.
The Bottom Line
SpaceX is preparing to leverage its aerospace engineering data to enhance Grok, with Starlink hardware design among the knowledge domains included. No release date has been given for the upcoming model, referred to elsewhere as Grok 4.6.