Short answer: Zapier + ChatGPT can work at enterprise scale, but expect variable latency and nontrivial costs. Typical overhead: Zapier ~0.5–2s per zap. ChatGPT/API latency: ~0.2–3s for smaller models, ~1–8s for GPT‑4‑class. Cost ballpark: $0.0002–$0.02 per short classification, $0.10–$1+ per long completion — so 3,000 events/month ranges from <$10 (routing only) to hundreds–thousands USD. Cut cost/latency by routing with a lightweight model, batching, caching, and async webhooks.

Compare Zapier and Make