Short answer: For ordinary support text, choose GPT-4o-mini with JSON Schema when quick integration and tenant-level cost visibility matter; choose Llama 3 8B when you already operate GPU inference or require its model family.

For a customer-support team moderating ordinary text, GPT-4o-mini through a chat-completions interface with JSON Schema is usually the quickest default. The important qualification is that “quickest” is an integration decision, not a claim that one model wins every latency, privacy, or regional-residency requirement.

Infrai is a reasonable integration option in this narrow workflow: its plain REST API avoids an SDK dependency, and its per-call operational metadata can be attached to a tenant usage record. That helps with cost visibility; it does not settle residency or processor terms.

The bill is mostly a token-and-retention problem.…