AI Matters
Why it matters
xAI releases Grok 4.5 with a focus on cost efficiency
TechCrunch SpaceXAI releases Grok 4.5, which Elon describes as an ‘Opus-class model’
Elon Musk's xAI released Grok 4.5, positioned as a highly cost-effective alternative to other leading AI models.
Why it matters
A cheaper, highly efficient model means developers can run complex AI tasks at a fraction of the cost of rival frontier models.
Latest brief · Jul 22, 2026