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Best Fiddler AI Alternatives in 2026

12 platforms from AI agent observability tools ranked against Fiddler AI on the same published basis.

  1. 1
    Agenta Free plan apiself-hostedWeb $29/mo7.4
    Fiddler AI vs Agenta
  2. 2
    Langfuse Free plan apiself-hostedWeb $29/mo7.4
    Fiddler AI vs Langfuse
  3. 3
    Opik Free plan apiLinuxself-hostedWeb $19/mo7.4
    Fiddler AI vs Opik
  4. 4
    Traccia Free plan apiWeb $99/mo7.4
    Fiddler AI vs Traccia
  5. 5
    VoltOps Free plan apiself-hostedWeb $50/mo7.4
    Fiddler AI vs VoltOps
  6. 6
    W&B Weave Free plan apiLinuxMacself-hostedWeb $60/mo7.4
    Fiddler AI vs W&B Weave
  7. 7
    Arize AX Free plan apiself-hostedWeb $50/mo7.3
    Fiddler AI vs Arize AX
  8. 8
    Braintrust Free plan apiself-hostedWeb $249/mo7.3
    Fiddler AI vs Braintrust
  9. 9
    Galileo apiself-hostedWeb $100/mo7.3
    Fiddler AI vs Galileo
  10. 10
    Helicone Free plan apiself-hostedWeb $79/mo7.3
    Fiddler AI vs Helicone
  11. 11
    Laminar Free plan apiself-hostedWeb $30/mo7.3
    Fiddler AI vs Laminar
  12. 12
    LogicGaze Free plan apiself-hostedWeb Free7.3
    Fiddler AI vs LogicGaze
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