paygentic Text Classifier

Choose this endpoint when you need zero-shot text classification into a fully custom, caller-defined label set without training a model. It is ideal for dynamic classification tasks where the categories change per request (e.g. per-customer taxonomies, ad-hoc routing rules). Prefer it over a dedicated sentiment API when your labels are domain-specific and not simply positive/negative/neutral, and over a fine-tuned classifier when you cannot train one.

• Text exceeds 4000 characters — request rejected
• Fewer than 2 or more than 20 labels supplied — validation error
• Individual label string exceeds 50 characters — validation error
• LLM ambiguity when text fits multiple labels equally well — may return unexpected label
• Payment not included or insufficient — x402 payment required error
• Network timeout on LLM inference — transient 5xx error