Eric Grover
5.5K posts

Eric Grover
@Eric_Grover
CTO at Net Health






Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus. RL is continuing to significantly improve the model, and the Grok Build harness gets better every day. Nice work by all those involved! Completely trained from scratch new models will be released by @SpaceX every month this year.




JUST IN: James Harden has been arrested for carrying unlawful weapons, per TMZ.



Microsoft Scout, the first always-on Autopilot agent for M365 • Proactively works across Teams, Outlook and OneDrive without needing prompts each time. • Handles meeting prep, scheduling conflicts and task tracking autonomously. • Operates within org-defined controls and policies. • 220K views, 673 bookmarks; the "Clippy went to grad school" jokes write themselves.





Introducing Composer 2.5, our most powerful model yet. It's more intelligent, better at sustained work on long-running tasks, and more reliable at following complex instructions. For the next week, we’re doubling the included usage of the model.




Together with SpaceXAI, we’re training a significantly larger model from scratch, using 10x more total compute. With Colossus 2’s million H100-equivalents and our combined data and training techniques, we expect this to be a major leap in model capability.


