# Arthur Bench
> Arthur Bench is an open-source evaluation framework designed to help organizations compare and benchmark the performance of Large Language Models (LLMs). Developed by Arthur AI, it provides a suite of tools for assessing model outputs against specific business criteria to facilitate data-driven decisions during the AI model selection process.
- URL: https://optimly.ai/brand/arthur-ai-arthur-bench
- Slug: arthur-ai-arthur-bench
- BAI Score: 62/100
- Archetype: Challenger
- Category: AI Observability
- Last Analyzed: April 11, 2026
- Part of: Arthur Ai (https://optimly.ai/brand/arthur-ai)
## Also Referenced By
- ground_truth_fact (https://optimly.ai/brand/ground-truth-fact)