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Best AI LLM Evaluation Tools in 2026

Updated

30 AI LLM evaluation tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

30ranked
0free plans on this page
3 Oct 2026last checked
  1. 26

    Arize Phoenix

    5.2
    Web
    Free plan
    Yes
    RecognisedDocumentedFree planPlatforms
    About Arize PhoenixVisit site
  2. 27

    Inspect AI

    5.2
    Deployment
    self-hosted
    RecognisedDocumentedFree planPlatforms
    About Inspect AIVisit site
  3. 28

    LM Evaluation Harness

    5.1
    Deployment
    self-hosted
    RecognisedDocumentedFree planPlatforms
    About LM Evaluation HarnessVisit site
  4. 29

    RAGChecker

    5.1
    Deployment
    self-hosted
    RecognisedDocumentedFree planPlatforms
    About RAGCheckerVisit site
  5. 30

    TruLens

    5.1
    Deployment
    self-hosted
    RecognisedDocumentedFree planPlatforms
    About TruLensVisit site

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