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Best Observability & Guardrails AI Tools

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

  1. 1Google Vertex AI Safety Filters41
  2. 2Azure AI Content Safety37
  3. 3Hive Moderation37
  4. 4Hive Graphene Vision37
  5. 5Hive Audio Moderation37
  6. 6Google Content API for Shopping37
  7. 7Hive Video Moderation37
  8. 8Hive Moderation Guard37
  9. 9ActiveFence LIVE36
  10. 10ActiveFence Moderation Ops36
  11. 11ActiveFence Trust & Safety Intelligence36
  12. 12CrowdStrike Content Shield34
  13. 13Checkstep Moderation QA34
  14. 14WebPurify Image & Video Moderation33
  15. 15Arize AI33
  16. 16Datadog LLM Observability32
  17. 17WhyLabs30
  18. 18Honeycomb LLM Observability30
  19. 19PimEyes Moderation API30
  20. 20Sightengine Moderation API30
  21. 21Helicone29
  22. 22ActiveFence AI Guardrails28
  23. 23ActiveFence Content Moderation28
  24. 24PromptArmor Safety Mesh28
  25. 25logfire28
  26. 26AWS Rekognition Content Moderation26
  27. 27Moderation API by Scale26
  28. 28Google Vertex AI Safety Filters26
  29. 29Two Hat Community Sift26
  30. 30Azure AI Content Safety23
  31. 31Spectrum Labs Guardian AI23
  32. 32Spectrum Labs Harmonize23
  33. 33Spectrum Labs Real-Time23
  34. 34Spectrum Labs Post-Moderation QA23
  35. 35Honeycomb LLM Observability22
  36. 36Spice.ai Cost Guard22
  37. 37WhyLabs AI Observatory22
  38. 38Protecto AI Policy Firewall22
  39. 39Baseten Traces20
  40. 40SentiOne Guard19

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

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