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Ranked by measurement

Best LLM observability

32 tested · top 32 shown

3 more could only be measured on fewer than five frames, so they are not ranked here — a partial average is not comparable with a full one.

Ordered by a seven-frame production-readiness benchmark measured from each product's public surface — not popularity, pricing or feature count. Nobody pays to appear here and the order is never edited. How it is measured →
How this field scores
low 52median 84best 99
  1. 1
    Retrace
    Execution replay and debugging tool for AI agent runs.
    Perf 98
    Acce 100
    Sec 100
    Priv 100
    Rel 100
    Std 97
    Disc 100
    retraceai.tech · measured 2026-11-03
    7/7 frames
  2. 2
    failproof ai
    Failproof AI monitors AI agents for silent failures and policy violations.
    Perf 79
    Acce 100
    Sec 100
    Priv 100
    Rel 100
    Std 92
    Disc 100
    befailproof.ai · measured 2026-11-10
    7/7 frames
  3. 3
    Prefactor
    AI agent observability, evaluation, and enforcement platform with usage-based pricing.
    Perf 72
    Acce 96
    Sec 100
    Priv 100
    Rel 100
    Std 92
    Disc 100
    prefactor.tech · measured 2026-11-06
    7/7 frames
  4. 4
    WeaveScope
    Observability platform for tracing and monitoring Elixir AI agent runs.
    Perf 97
    Acce 91
    Sec 100
    Priv 100
    Rel 90
    Std 92
    Disc 85
    weavescope.com · measured 2026-11-01
    7/7 frames
  5. 5
    agent-inspect
    TypeScript tool for debugging and regression-testing AI agents from local execution traces.
    Perf 97
    Acce 93
    Sec 100
    Priv 70
    Rel 100
    Std 89
    Disc 100
    agentinspect.vercel.app · measured 2026-11-05
    7/7 frames
  6. 6
    telemetry.dev
    Observability platform for AI apps that unifies traces, logs, metrics, cost, and latency.
    Perf 83
    Acce 93
    Sec 85
    Priv 100
    Rel 100
    Std 89
    Disc 100
    telemetry.dev · measured 2026-11-09
    7/7 frames
  7. 7
    Hue
    Hue is a testing and evaluation platform for AI agents built on real usage traces.
    Sec 100
    Priv 100
    Rel 100
    Std 75
    Disc 85
    2 not assessed
    hue.run · measured 2026-11-06
    5/7 frames
  8. 8
    Arize AI
    Arize AI provides an observability and evaluation platform for production AI applications.
    Perf 69
    Acce 97
    Sec 70
    Priv 100
    Rel 100
    Std 92
    Disc 100
    arize.com · measured 2026-11-02
    7/7 frames
  9. 9
    Buildbox
    Analytics platform that identifies where AI agents fail real users.
    Perf 97
    Acce 100
    Sec 45
    Priv 100
    Rel 100
    Std 89
    Disc 100
    heybuildbox.com · measured 2026-11-02
    7/7 frames
  10. 10
    Pydantic
    Pydantic Logfire is an observability platform for logging, tracing, and metrics.
    Perf 49
    Acce 100
    Sec 100
    Priv 75
    Rel 100
    Std 100
    Disc 100
    pydantic.dev · measured 2026-10-28
    7/7 frames
  11. 11
    Splyntra
    Splyntra provides observability and security monitoring for AI agents.
    Perf 96
    Acce 96
    Sec 45
    Priv 100
    Rel 100
    Std 92
    Disc 87
    splyntra.com · measured 2026-11-03
    7/7 frames
  12. 12
    Langfuse
    Langfuse is an LLM application and agent observability and evaluation platform.
    Perf 42
    Acce 92
    Sec 100
    Priv 100
    Rel 100
    Std 89
    Disc 85
    langfuse.com · measured 2026-11-04
    7/7 frames
  13. 13
    Telerik.com
    AI observability platform for monitoring and tracing production AI agents.
    Perf 45
    Acce 88
    Sec 80
    Priv 100
    Rel 100
    Std 89
    Disc 100
    telerik.com · measured 2026-11-02
    7/7 frames
  14. 14
    Braintrust
    Braintrust is a platform for tracing, evaluating, and storing AI application outputs.
    Perf 57
    Acce 89
    Sec 90
    Priv 70
    Rel 100
    Std 89
    Disc 100
    braintrust.dev · measured 2026-11-02
    7/7 frames
  15. 15
    Latitude
    Open-source AI agent observability and monitoring platform.
    Perf 88
    Acce 86
    Sec 45
    Priv 100
    Rel 100
    Std 86
    Disc 90
    latitude.so · measured 2026-11-03
    7/7 frames
  16. 16
    Replay Doctor
    Replay Doctor identifies when your prompt cache broke and what it cost you.
    Perf 96
    Acce 100
    Sec 45
    Priv 70
    Rel 100
    Std 92
    Disc 90
    replay.doctor · measured 2026-10-31
    7/7 frames
  17. 17
    OpsVeritas
    OpsVeritas is a monitoring platform for AI agents with cost tracking and failure detection.
    Perf 94
    Acce 94
    Sec 45
    Priv 75
    Rel 100
    Std 92
    Disc 85
    agents.opsveritas.com · measured 2026-11-08
    7/7 frames
  18. 18
    Foglamp
    Observability platform for monitoring AI agents and LLM calls.
    Perf 51
    Acce 93
    Sec 45
    Priv 100
    Rel 100
    Std 92
    Disc 100
    foglamp.dev · measured 2026-11-04
    7/7 frames
  19. 19
    Traccia
    Traccia is an observability, evaluation, and policy enforcement platform for AI agents.
    Perf 60
    Acce 96
    Sec 25
    Priv 100
    Rel 100
    Std 100
    Disc 100
    traccia.ai · measured 2026-11-06
    7/7 frames
  20. 20
    Galileo AI
    AI observability and evaluation platform for monitoring and improving LLM applications.
    Perf 74
    Acce 88
    Sec 55
    Priv 75
    Rel 92
    Std 89
    Disc 100
    galileo.ai · measured 2026-11-06
    7/7 frames
  21. 21
    Future AGI
    Future AGI is a platform for testing, evaluating, and monitoring AI agents in production.
    Perf 42
    Acce 88
    Sec 25
    Priv 100
    Rel 100
    Std 92
    Disc 100
    futureagi.com · measured 2026-11-02
    7/7 frames
  22. 22
    ARGUS
    Forensic observability tool for detecting silent failures in AI agent pipelines.
    Perf 96
    Acce 96
    Sec 45
    Priv 25
    Rel 100
    Std 92
    Disc 85
    arguslabs.in · measured 2026-11-01
    7/7 frames
  23. 23
    Helicone
    Helicone is an LLM observability and AI gateway platform for monitoring and routing AI applications.
    Perf 67
    Acce 90
    Sec 45
    Priv 75
    Rel 100
    Std 86
    Disc 70
    helicone.ai · measured 2026-11-03
    7/7 frames
  24. 24
    Flightdeck
    Self-hosted observability and control plane for AI agent fleets.
    Perf 84
    Acce 98
    Sec 25
    Priv 25
    Rel 92
    Std 92
    Disc 90
    flightdeck-hq.com · measured 2026-10-27
    7/7 frames
  25. 25
    LangWatch
    LangWatch tracks token usage, cost, and traces for Claude Code and other coding agents.
    Perf 75
    Acce 95
    Sec 45
    Priv 25
    Rel 75
    Std 92
    Disc 100
    langwatch.ai · measured 2026-10-02
    7/7 frames
  26. 26
    Heron
    Passive LLM and agent observability by capturing traffic from the network wire.
    Perf 93
    Acce 94
    Sec 45
    Priv 25
    Rel 67
    Std 92
    Disc 57
    heron-ai.pages.dev · measured 2026-11-05
    7/7 frames
  27. 27
    ngx-ai-devtools
    Floating DevTools panel that intercepts OpenAI, Anthropic, Gemini, Mistral, Groq, and Cohere calls in your Ang
    Perf 100
    Acce 100
    Sec 45
    Priv 25
    Rel 67
    Std 85
    Disc 45
    ngx-ai-devtools.vercel.app · measured 2026-11-02
    7/7 frames
  28. 28
    Comet
    Comet is an ML platform for experiment tracking, LLM evaluation, and model monitoring.
    Perf 50
    Acce 94
    Sec 45
    Priv 25
    Rel 75
    Std 70
    Disc 100
    comet.com · measured 2026-10-31
    7/7 frames
  29. 29
    Promptetheus
    Incident response tool for AI agents running in production.
    Perf 64
    Acce 91
    Sec 45
    Priv 25
    Rel 100
    Std 85
    Disc 35
    promptetheus-console.vercel.app · measured 2026-10-29
    7/7 frames
  30. 30
    AgentOps
    Developer platform for tracing, debugging, and deploying AI agents and LLM apps.
    Perf 49
    Acce 95
    Sec 45
    Priv 25
    Rel 100
    Std 66
    Disc 60
    agentops.ai · measured 2026-11-01
    7/7 frames
  31. 31
    Orchid
    Local proxy tool for recording, inspecting, and replaying AI agent API calls.
    Perf 90
    Acce 89
    Sec 0
    Priv 25
    Rel 25
    Std 79
    Disc 90
    orchidtrace.xyz · measured 2026-10-30
    7/7 frames
  32. 32
    W&B
    W&B is a platform for tracking, evaluating, and managing AI models and applications.
    Perf 47
    Acce 89
    Sec 25
    Priv 25
    Rel 67
    Std 89
    Disc 25
    wandb.ai · measured 2026-10-27
    7/7 frames
What this does not say
This ranks how production-ready each product's public surface is — not how well it does its job. For llm observability, that means it does not measure the quality of the work itself. Products whose sites block automated readers are left out rather than ranked last — we did not measure them, and bottom placement would claim something we never observed. Scores are floors: anything set at a CDN, a proxy or behind a login is invisible from the public surface.

All measured categories → · Browse the directory →