Evaluation

A/B Testing

1 min read

What It Means

Comparing two versions of an agent or system by randomly assigning users to each version and measuring outcome differences.

A/B testing provides causal evidence about which agent variant performs better in production conditions.

Key Considerations

  • Sample size: Need enough users for statistical significance
  • Metrics: Define success criteria before testing
  • Duration: Run long enough to capture variance

Agent-Specific Challenges

  • User interactions may be complex and lengthy
  • Multiple metrics may conflict
  • Long-term effects may differ from short-term
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