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What is Classer?

Classer is an AI classification API built for production. Classify text, tag content, score attributes, and match queries — all with a single API call.

10x Cheaper

Fraction of the cost of GPT-4 or Claude

<200ms Latency

Fast enough for real-time applications

Zero Training

Works out of the box, no examples needed

Simple API

One endpoint, instant results

Use Cases

  • Support Ticket Routing — Classify incoming tickets to the right team
  • Lead Scoring — Score leads as hot, warm, or cold
  • Content Moderation — Detect toxicity, spam, or inappropriate content
  • Document Tagging — Auto-tag articles with multiple categories
  • RAG Retrieval — Score document relevance for search

Quick Example

import classer

result = classer.classify(
    source="I can't log in to my account",
    labels=["billing", "technical", "sales"]
)

print(result.label)      # "technical"
print(result.confidence) # 0.94

Next Steps