The free plan is certainly unique but can't be compared with paid plans of other major CDN providers due to its limitations. Cloudflare charges per plan, domain, the number of features and solutions enabled (called ""rules""), traffic using their smart routing and so on.

We took into account the features and solutions other providers usually offer by default followed by a traffic cost estimation using Argo Smart Routing pricing with 10% ingress. 50, 100 TB and 150 TB plans are high enough to apply for custom enterprise plans starting at $3000.