DuckDuckGo plans to monetize its AI Chat service through a potential paid version offering increased daily usage limits and access to more costly AI models. While the current service is free with a daily usage limit, the company is considering a freemium model where users can pay to access more powerful AI tools and higher usage quotas. This approach aligns with DuckDuckGo's existing revenue model, which primarily relies on private ads and subscription fees for other services, ensuring that user privacy remains intact.