Cathie Wood, CEO of ARK Invest, believes the growing popularity of open-weight artificial intelligence models could ultimately strengthen the industry's biggest AI companies rather than weaken them. Wood argues that the expanding open-model ecosystem could help accelerate adoption of artificial intelligence while allowing companies with the strongest frontier models and infrastructure to capture a disproportionate share of the revenue generated by increasingly powerful AI systems. She said open-weight models are becoming an important reason she believes companies such as OpenAI, Anthropic and xAI are likely to capture the vast majority of model-driven AI revenue. The argument challenges the common assumption that releasing model weights publicly threatens the business model of companies developing expensive proprietary systems. Wood believes open-weight models could expand the overall AI market so dramatically that frontier companies may still capture a large share of the economic value. Open-weight models are AI systems whose trained parameters are made available for others to download and use, though this does not necessarily mean training data or code are public. This accessibility can reduce dependence on a single AI provider and potentially lower costs. Wood's argument depends on the idea that AI adoption is still in an early stage, with cheaper deployment potentially leading to more companies using AI, more developers experimenting, and more applications being built.