AI BriefingMusk Announces Grok 4.5 Enters Private Beta
Key point
Musk revealed that Grok 4.5, based on the 1.5T V9 model, has launched in private beta and that new models will be released every month.
Details
Musk revealed that Grok 4.5, built on the 1.5T V9 foundation model and further trained on Cursor data, is currently running in private beta at SpaceX and Tesla. Early evaluations show its performance approaching or exceeding Claude 3 Opus.
The model's performance is being continuously improved through RL (reinforcement learning), and the Grok Build harness is also being refined daily.
Additionally, SpaceX plans to release new models trained from scratch every month for the rest of this year.
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