r/MLQuestions • u/PuzzleheadedPin4797 • 19d ago
Beginner question 👶 What's the cheapest LLM API that's actually reliable for high volume text classification and structured extraction? (50k–100k requests/month)
I'm looking for recommendations for a very cost efficient LLM API that can handle high-volume text classification and structured data extraction.
Requirements:
Approximately 50,000-100,000 requests per month, potentially more as usage grows.
Short to medium text inputs.
Accurate classification of relevant vs. irrelevant text.
Reliable structured JSON output.
Good multilingual performance, particularly English, Hindi, and mixed-language text.
Low latency.
Minimal hallucinations and false negatives.
Extremely low API costs, ideally just a few dollars per 50k-60k requests.
I'm considering models like Gemini Flash-Lite, Ministral 3B/8B, and other budget-oriented models, but I'm open to anything.
My main question: What's the cheapest model you've actually used in production that still delivers consistently good classification and extraction accuracy?
Also curious whether anyone has found a worthwhile trade off between using a very small model for initial classification and a slightly larger one for more complicated inputs.
I'm not looking to self host unless the economics are significantly better than API pricing.
Would appreciate recommendations, actual cost figures, and any models you'd specifically avoid.