While open-source LLMs offer transparency and community-driven innovation, the future might not be exclusively OSS. Proprietary models have significant advantages, including the ability to secure investment for cutting-edge development, customize for specific business needs, and maintain competitive edges through secrecy. Moreover, companies can directly monetize proprietary models, providing a clear path to profitability, and they can offer enhanced security and privacy controls crucial for sensitive applications. Thus, both open-source and proprietary LLMs are likely to continue playing vital roles in AI's future landscape.