Overview
- Elon Musk announced that Grok V9‑Medium, a 1.5 trillion‑parameter base model, has finished core training and returned promising evaluation results.
- The team has added large amounts of Cursor data during supplementary training and plans to continue expanding that dataset before release.
- Fine‑tuning is already under way and Musk said reinforcement‑learning fine‑tuning will begin within days as the final step before public availability.
- Musk framed V9‑Medium as a major capability upgrade over the current 0.5T V8‑Small production model, saying it should notably improve performance on hard programming tasks.
- The announcement follows SpaceX’s acquisition and reorganization of xAI into SpaceXAI and could boost developer tools and coding agents by using Cursor’s real-world coding workflows.