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Best Monitoring & Evaluation AI Tools

40 monitoring & evaluation tools, ranked by Stork's defensibility score — a human-reviewed verdict on which ones hold up as agents commoditize the rest.

  1. 1LLMTest32
  2. 2OpenMeter AI31
  3. 3Nightfall AI LLM Protection30
  4. 4Lakera Sense30
  5. 5Helicone29
  6. 6Weights & Biases Prompt Registry26
  7. 7Scale Validate26
  8. 8Braintrust Playground24
  9. 9Braintrust24
  10. 10Gretel Guardrails23
  11. 11HiddenLayer Malware Monitor23
  12. 12Ragas23
  13. 13Arena Agent Mode23
  14. 14Agent Arena23
  15. 15Pendo23
  16. 16Lakera Red Team22
  17. 17Lakera Guardrails22
  18. 18Lakera Red Team22
  19. 19LMSys Chatbot Arena22
  20. 20Galileo AI22
  21. 21E2B Sandboxes19
  22. 22Weights & Biases Weave19
  23. 23Artificial Analysis19
  24. 24Cortex17
  25. 25Confident AI16
  26. 26CalypsoAI Moderator15
  27. 27HiddenLayer Horizon Red Team15
  28. 28Protect AI Red Team Ops15
  29. 29Lakera Red Team15
  30. 30SWEbench12
  31. 31WolfBench12
  32. 32SWE-Bench Pro12
  33. 33PromptLayer11
  34. 34PromptLayer Eval Harness11
  35. 35MLflow11
  36. 36Comet (Opik)11
  37. 37LangSmith Eval Harness9
  38. 38Arize Phoenix9
  39. 39Arize Phoenix Evaluations9
  40. 40AIQualityHQ9

Ranked by the Stork score — human-reviewed, recomputed as model capabilities ship.

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