Headless vs traditional CMS: architecture comparison
The headless CMS pattern separates content storage (the "body") from content presentation (the "head"). Sanity is the body: a structured content API with a configurable editor Studio. Your frontend — whatever framework renders the content publicly — is something you build separately and deploy independently. This gives you complete control over how content looks and behaves on any surface. Nike's website, its iOS app, and its in-store display can all consume the same Sanity content in different ways. The cost of that flexibility is real: every surface requires a developer to build, a hosting service to run, and ongoing engineering to maintain. Traditional CMS platforms like VeloCMS couple content management with presentation. The blog editor, the themes, the post pages, and the SEO infrastructure are all part of the same product. You give up unlimited design flexibility in exchange for a working site on day one without a developer.
When you actually need a content team + engineering team
Sanity's customer list is a useful guide. Nike uses it for global multi-channel publishing across dozens of markets and surfaces. Sonos uses it to manage product content that appears on the website, in the app, and in retail partner systems. Figma uses it for their documentation and changelog. Linear uses it for their marketing content. These are organizations with dedicated engineering teams, design teams, and editorial teams working in parallel. The Sanity investment is justified by the scale of the publishing operation and the technical requirements of multi-channel content delivery. For a solo writer, a newsletter business, or a small team of content creators, the same investment is significant over-engineering. The question to ask is not "which is more powerful?" but "which matches my team's actual structure and publishing requirements?"
Out-of-the-box vs build-your-own: time-to-launch math
The time-to-launch comparison between VeloCMS and a Sanity-powered site is dramatic because they are solving different problems. VeloCMS is optimized for time-to-first-post: account creation, theme selection, and first published article take under 10 minutes. The entire frontend was built once and is maintained by VeloCMS, not you. A Sanity project with a custom Next.js frontend takes 2-5 developer days for a basic content site — schema definition, Studio deployment, frontend build, Vercel configuration, GROQ queries, preview mode, and testing. That investment makes sense when you need the customization it enables. When you just need a blog that ranks in search, sends newsletters, and accepts payments, VeloCMS is 5 minutes instead of 5 days — and $9/mo instead of a recurring API-plus-hosting bill (Sanity Growth at $15 per seat/mo plus Vercel Pro from $20/mo).