Narev

Guides

Learn how to optimize your LLM spend with practical guides on model selection, cost reduction, and performance tuning.

Reduce LLM spend by switching models

How switching from GPT-4 to gpt-oss-20b cut costs by 99% while maintaining 100% accuracy

October 1, 2025

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Reduce LLM spend by prompt engineering

How a shorter, simpler prompt cut costs by 24% with the same accuracy and better consistency

October 1, 2025

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