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Cheap Batch Classification

Classify large volumes of text at the lowest possible cost per request

datacost trackUpdated 2026-04-13

Process high volumes (10K-1M items/day) of classification tasks — sentiment analysis, topic categorization, spam detection, content moderation — while keeping cost below $0.01 per request.

The job to be done

Classify text inputs into predefined categories with consistent accuracy. Handle 10K-1M items daily. Output structured labels with confidence scores. Maintain >90% accuracy on standard categories.

Key tradeoffs

Cost is the dominant constraint. A frontier model costs 10-50x more per request than a budget model. For well-defined categories, a budget model often achieves 90%+ accuracy. Quality only matters at the margins.

When to switch models

Start with the cheapest model that hits your accuracy threshold. Only upgrade for categories with high error rates. Consider fine-tuning a small model if your use case is stable.

Related guides

Frequently asked questions

What accuracy can I expect from budget models?

For standard sentiment analysis, budget models typically achieve 88-93% accuracy. For domain-specific classification, accuracy may be 80-85% without fine-tuning.

Should I use batch APIs?

Yes. Most providers offer 50% discounts on batch API calls. If latency isn't critical, batch processing can halve your costs.

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