If your categories are stable and you need deterministic, low-latency routing, implement rules in Zapier — simpler to maintain and cheaper. If labels require semantic understanding, multi-labeling, or frequent free-text nuance, use ChatGPT via webhook but expect higher latency, API costs, rate limits, and the need for prompt/version monitoring. A practical hybrid: ChatGPT for classification, Zapier for routing/retries and integrations; log predictions and add a human-review fallback.

Compare ChatGPT and Gemini