According to Sam Altman (@sama), the cost of AI model training has decreased by 390 times within a year, signaling a dramatic shift in the economics of artificial intelligence development (source: Sam Altman Twitter, Dec 11, 2025). This unprecedented reduction unlocks significant opportunities for startups and enterprises to access advanced AI capabilities at a fraction of previous costs, accelerating innovation in AI-driven products and services. Businesses can now experiment with larger models and more complex use cases, lowering barriers for market entry and enabling rapid scaling. The trend also intensifies competition among cloud providers and AI infrastructure companies, pushing them to further optimize AI compute resources and pricing models.