Choose Vercel when managed deployment, previews, framework-aware infrastructure, and automatic scaling are worth the platform cost. Choose self-hosting when infrastructure control, provider choice, or a specific operating model matters enough to own the operational work.
Where Vercel is stronger
Vercel turns connected Git changes into unique deployments and separates preview from production workflows. Its functions scale with requests, and its dashboard brings deployment output, logs, resource information, and observability into one managed surface.
That is more than renting compute. Reproducing the experience requires build isolation, immutable releases, preview environments, domains, certificates, logs, metrics, rollback, and a team prepared to operate them.
Where self-hosting is stronger
Self-hosting lets you choose the provider, region, network topology, runtime process, storage, and capacity model. A stable workload can fit fixed server resources, and data can remain within an account and architecture you control.
Control also transfers responsibility. Single-server deployments need patching, backups, monitoring, and recovery. Multi-instance Next.js adds shared cache, tag invalidation, consistent Server Function encryption keys, deployment identifiers, and version-skew planning.
Decide using total cost and constraints
Model the same reliability target on both sides. Include Vercel seats and usage categories where applicable. For self-hosting, include compute, transfer, backups, load balancing, observability, deployment tooling, on-call time, and recovery testing.
Neither model is universally superior. The stronger choice is the one whose failure modes and operating costs your team can explain before production traffic arrives.