Jul 15, 2026
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4 min read
Grok 4.5 Private Beta: xAI Is Using SpaceX and Tesla as Its Secret Test Lab
Grok 4.5 is quietly live in private beta — no public benchmarks, no press release. xAI is using its own SpaceX rocket fleets and Tesla vehicle networks as the real-world evaluation environment, a strategy no other frontier lab can replicate.
Ab
Abhinav Ramaswamy