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xAI Puts Grok 4.5 Into Private Beta at SpaceX, Tesla

  • Foundation Models
  • Software Dev & Coding
  • Sales & Business

xAI's Elon Musk said on June 28 that its latest large language model, Grok 4.5, is running in private beta inside SpaceX and Tesla. Built on the 1.5-trillion-parameter V9 foundation model, early evaluations reportedly show performance matching or possibly exceeding Anthropic's Claude Opus.

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