Modal Starter has a $0 monthly plan fee plus metered usage and includes $30 per month of compute credits, 3 workspace seats, 100 containers and 10 GPU concurrency. Included compute covers Functions, Sandboxes and Notebooks, but Shared Endpoints are billed per token from the first request; region and execution settings can increase rates.
Risk: Free credits offset usage but do not make all workloads free; region selection and non-preemptible execution can materially increase compute cost. Credits are recurring plan allowance, not cash and not a fixed GPU-hour entitlement.