Bootstrap confidence intervals for your LLM eval metrics

📰 Dev.to · Marcus Chen

Learn to calculate bootstrap confidence intervals for LLM evaluation metrics to quantify uncertainty

intermediate Published 24 Jun 2026
Action Steps
  1. Calculate evaluation metrics for your LLM using a test dataset
  2. Implement bootstrap resampling to generate multiple subsets of the test data
  3. Recalculate evaluation metrics for each bootstrap subset
  4. Compute the confidence interval for each metric using the bootstrap results
  5. Visualize the confidence intervals to compare and evaluate LLM models
Who Needs to Know This

Data scientists and machine learning engineers can benefit from this technique to better evaluate and compare LLM models

Key Insight

💡 Bootstrap confidence intervals provide a way to quantify the uncertainty of evaluation metrics, allowing for more accurate comparisons and model selections

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📊 Quantify uncertainty in LLM eval metrics with bootstrap confidence intervals! 🚀

Key Takeaways

Learn to calculate bootstrap confidence intervals for LLM evaluation metrics to quantify uncertainty

Full Article

TL;DR: A single eval number hides its own uncertainty. Eval confidence intervals from bootstrap...
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