evaluating-llms-harness

Benchmark language model performance across standard evaluation tasks.

1|Updated Jan 31, 2026
One-click install
npx skills add https://github.com/Monjyu1101/AiDiy2026 --skill evaluating-llms-harness-monjyu1101
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: evaluating-llms-harness
Source: https://github.com/Monjyu1101/AiDiy2026/tree/main/backend_hermes/skills/mlops/evaluation/lm-evaluation-harness
Command: npx skills add https://github.com/Monjyu1101/AiDiy2026 --skill evaluating-llms-harness-monjyu1101

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Benchmark LM performance across standard evaluation tasks.

Core Features & Use Cases

  • Supports 60+ benchmarks including MMLU, GSM8K, HumanEval, ARC, TruthfulQA, etc.
  • Enables benchmarking across HuggingFace, vLLM, and API-based models with reproducible results.
  • Provides a deterministic evaluation workflow and clear scoring for model comparisons.

Quick Start

Run an evaluation against a chosen model with lm-evaluation-harness to generate benchmark results.

Frequently Asked Questions about evaluating-llms-harness

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I benchmark LLM performance on MMLU and GSM8K?

To benchmark LLM performance on MMLU and GSM8K, run evaluations using the lm-evaluation-harness to generate consistent scoring across standard tasks. It supports 60+ benchmarks and provides reproducible results for comparing model quality over time.

Can I evaluate API-based models with the same benchmarks as HuggingFace models?

Yes, you can evaluate API-based models with the same benchmarks as HuggingFace models. The evaluation harness enables consistent benchmarking across HuggingFace, vLLM, and API-based backends to ensure reproducible results and clear scoring.

What is the best way to ensure reproducible results when evaluating LLMs?

The best way to ensure reproducible LLM evaluation results is to use a deterministic evaluation workflow. This harness provides a consistent scoring mechanism across various backends, allowing reliable model comparisons over time.

Does the lm-evaluation-harness support HumanEval and TruthfulQA benchmarks?

Yes, the lm-evaluation-harness supports HumanEval and TruthfulQA benchmarks. It covers 60+ standard evaluation tasks including MMLU, GSM8K, ARC, and TruthfulQA for comprehensive language model performance testing.

How do I run an evaluation against a chosen model to generate benchmark results?

To run an evaluation against a chosen model, execute the lm-evaluation-harness workflow to generate benchmark results. This provides a deterministic process that outputs clear scoring for comparing model quality across supported tasks.

Why should I use a standardized evaluation harness for LLM benchmarking?

You should use a standardized evaluation harness for LLM benchmarking to achieve consistent metrics and reproducible results. It enables accurate model comparisons over time by applying uniform scoring across diverse backends and standard tasks.