An Al Jazeera analysis shows that as of mid-September 2026, NVIDIA is the largest AI-related public company, with a market capitalization of approximately $5.1 trillion, primarily designing GPUs and AI accelerators. Apple Inc. has a market capitalization of $4.86 trillion, and its Siri AI, launched in 2026, is based on Google's Gemini model. TSMC, with a market capitalization of $1.9 trillion, is the world's largest chip manufacturer, controlling over 70% of the global wafer foundry market.