Library · practice

LLM evaluation

Measure whether an LLM feature works, with labelled test sets, automatic checks and calibrated model graders, and stop regressions before release.

LLM evaluation appeared in 31% of the Forward Deployed Engineer and 20% of the AI/ML Engineer postings we read, and it is the practice that separates demos from products.

The harness in these lessons evaluates the support triage feature from the LLMs shelf. The metric code runs offline; calling the model needs an API key.

  1. 1Build an evaluation harnessAn evaluation harness for an LLM feature5 min read

LLM evaluation lessons

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