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How to Create a Weighted Index for AI Model Benchmark Results

Combine objective LLM-as-judge scores with subjective human 'taste' scores to create a final, definitive model ranking. This workflow shows you how to build a weighted index that reflects your unique priorities.

How to Create a Weighted Index for AI Model Benchmark Results

Tools Used

Claude

Anthropic AI assistant

02Step-by-Step Guide
1

Collate Automated and Manual Scores

Gather your two sets of data: the scores from your automated LLM-as-judge and the scores from your manual 'vibe check'. You should have parallel scores for each model's output on every task.

2

Analyze Score Divergence

Compare the automated leaderboard with your manual leaderboard. Identify where they agree and disagree to understand the strengths of each scoring method.

Pro Tip: LLM-judges are good at catching functional errors, while human evaluators excel at judging taste, personality, and nuance.
3

Generate a Weighted Index Tool

Use an AI assistant to create a tool, such as an interactive HTML page with a slider, that allows you to combine the two score sets into a single weighted index.

4

Set Your Weights and Determine Final Ranking

Use your tool to decide on the weighting that best reflects your priorities. The blog author chose a 70% weight for their manual score and 30% for the automated score to create their final ranking.

Pro Tip: This step gives you ultimate control over the final result, ensuring it aligns with your values.
5

Derive Task-Specific Recommendations

Break down the final weighted scores by individual task (e.g., writing PRDs, prototyping). This allows you to generate specific recommendations for which model is best for which job, as the overall winner may not be the best for every task.

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