SpaceXAI's latest model, Grok 4.5,
goes public on Thursday following strong beta feedback from SpaceX and Tesla
teams.
Described by Musk as 'Opus-class,'
it offers superior speed, token efficiency, and affordability compared to
Anthropic's Claude Opus, built on a 1.5 trillion-parameter foundation trained
on the massive Colossus supercluster.
The release follows xAI's $60 billion acquisition of Cursor's parent company and caps weeks of internal hype, with users already calling it a daily workhorse ahead of independent benchmarks.