# 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)
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## Full Details / RAG Data
### Overview
Arthur Bench is listed in the AI Directory.
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.
### Metadata
| Field        | Value |
|--------------|-------|
| Name         | Arthur Bench |
| Slug         | arthur-ai-arthur-bench |
| URL          | https://optimly.ai/brand/arthur-ai-arthur-bench |
| BAI Score    | 62/100 |
| Archetype    | Challenger |
| Category     | AI Observability |
| Last Analyzed | April 11, 2026 |
| Last Updated | 2026-04-12T16:22:28.992Z |
### Verified Facts
- Founded: 2023 (Product Launch)
- Headquarters: New York, NY (Parent HQ)
### Also Referenced By
- ground_truth_fact (https://optimly.ai/brand/ground-truth-fact)
### Parent Brand
- Arthur Ai (https://optimly.ai/brand/arthur-ai)
### Links
- Canonical page: https://optimly.ai/brand/arthur-ai-arthur-bench
- JSON endpoint: /brand/arthur-ai-arthur-bench.json
- LLMs.txt: /brand/arthur-ai-arthur-bench/llms.txt