Grok 4.5 is so cheap compared to Fable 5 and GPT 5.5 that benchmark gaps may not matter much

xAI has released Grok 4.5, a model trained on a large cluster of Nvidia GB300 GPUs that is now available at a significantly lower price point than competitors like Fable 5 or GPT-5.5. While the model currently underperforms its peers in coding benchmarks, its high efficiency and low cost of two dollars per million input tokens suggest that future competition in the AI sector may prioritize operational affordability over marginal gains in technical performance.