OpenAI Evals

Evals is a framework for evaluating LLMs and LLM systems, and an open-source registry of benchmarks.

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Overview

OpenAI Evals is an open-source software framework for evaluating the performance of large language models and the systems built with them. It provides a structure for creating 'evals,' which are tests based on specific datasets and evaluation logic. The framework includes a registry of existing benchmarks to allow for easy comparison of different models. While it was created by OpenAI, it is designed to be model-agnostic, enabling developers to test models from any provider or their own custom models. It is a powerful tool for anyone looking to create reproducible and standardized evaluations for LLMs.

✨ Key Features

  • Framework for creating evaluations
  • Open-source registry of benchmarks
  • Model-agnostic
  • Reproducible evaluation results
  • Command-line interface for running evals
  • Customizable evaluation logic

🎯 Key Differentiators

  • Created and backed by OpenAI
  • Focus on a standardized framework and registry for benchmarks
  • Designed for creating reproducible evaluations
  • Simple and flexible structure for defining new evals

Unique Value: OpenAI Evals provides an open-source, standardized framework for creating and running benchmarks for large language models, enabling developers to produce reproducible results and compare models on a level playing field.

🎯 Use Cases (4)

Benchmarking the performance of different LLMs on a specific task Creating a custom evaluation for a unique use case Running regression tests to ensure model updates don't degrade performance Contributing to the community by creating and sharing new benchmarks

✅ Best For

  • Comparing the performance of GPT-4 vs. Claude on a summarization task
  • Creating a custom eval to test a model's ability to follow complex instructions
  • Running a benchmark from the registry to assess a new open-source model

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Real-time production monitoring and observability
  • Interactive debugging and tracing of LLM applications

🏆 Alternatives

DeepEval UpTrain EleutherAI/lm-evaluation-harness

While other frameworks focus on providing pre-built metrics for application testing, Evals focuses on providing the structure to create and run benchmarks. It is more of a foundational tool for evaluation research and standardization.

💻 Platforms

Command-line tool Python Library

✅ Offline Mode Available

🔌 Integrations

OpenAI Any LLM via custom integration

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: OpenAI Evals is a completely free and open-source project.

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