The model release is the first since SpaceX went public in June and will help SpaceXAI compete with other frontier model providers, particularly in coding.
July 9, 2026
Following its acquisition of AI coding platform Cursor, SpaceXAI, the rebranded AI division of Elon Musk’s SpaceX, has launched Grok 4.5 in a move aimed at the enterprise market.
Introduced on July 8, Grok 4.5 is built for coding, agentic tasks and knowledge work. The model was trained alongside Cursor, the vendor said. The training was on the Nvidia GB300 platform, which combines GPUs and CPUs. SpaceXAI said it invested heavily in data filtering and curation, and scaled reinforcement learning with a focus on per-token intelligence.
The new model is SpaceXAI’s first model specifically designed for agentic coding. Previously, the vendor, known as xAI before being renamed SpaceXAI on July 6, ventured into coding with its Build CLI, a coding agent for developers. However, the Grok model has long been aimed mostly at consumers using Musk’s X social media platform, with little enterprise adoption.
