xAI has released its latest model, Grok 4.5, which is positioned to compete with established models like GPT-5.5 and Fable 5. While Grok 4.5 may still lag behind competitors in complex programming benchmarks, its significantly lower operational cost could disrupt the commercial AI market. AI
IMPACT Grok 4.5's low operational cost could significantly alter the commercial AI landscape, potentially making advanced AI more accessible.
RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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