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Ranked by measurement

Best LLM observability

32 tested · top 32 shown

2 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 55median 80best 98
  1. 1
    Retrace
    Execution replay and debugging tool for AI agent runs.
    Perf 91
    Acce 100
    Sec 100
    Priv 100
    Rel 100
    Std 97
    Disc 100
    retraceai.tech · measured 2026-09-21
    7/7 frames
  2. 2
    telemetry.dev
    Observability platform for AI apps that unifies traces, logs, metrics, cost, and latency.
    Sec 100
    Priv 100
    Rel 100
    Std 75
    Disc 100
    2 not assessed
    telemetry.dev · measured 2026-09-03
    5/7 frames
  3. 3
    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 2026-09-24
    7/7 frames
  4. 4
    Langfuse
    Langfuse is an LLM application and agent observability and evaluation platform.
    Sec 100
    Priv 100
    Rel 100
    Std 75
    Disc 85
    2 not assessed
    langfuse.com · measured 2026-09-23
    5/7 frames
  5. 5
    Pydantic
    Pydantic Logfire is an observability platform for logging, tracing, and metrics.
    Perf 73
    Acce 96
    Sec 100
    Priv 75
    Rel 100
    Std 100
    Disc 100
    pydantic.dev · measured 2026-09-10
    7/7 frames
  6. 6
    Prefactor
    AI agent observability, evaluation, and enforcement platform with usage-based pricing.
    Perf 48
    Acce 94
    Sec 100
    Priv 100
    Rel 100
    Std 89
    Disc 100
    prefactor.tech · measured 2026-09-25
    7/7 frames
  7. 7
    Buildbox
    Analytics platform that identifies where AI agents fail real users.
    Perf 86
    Acce 100
    Sec 45
    Priv 100
    Rel 100
    Std 89
    Disc 100
    heybuildbox.com · measured 2026-09-17
    7/7 frames
  8. 8
    Telerik.com
    AI observability platform for monitoring and tracing production AI agents.
    Perf 60
    Acce 91
    Sec 80
    Priv 100
    Rel 100
    Std 89
    Disc 100
    telerik.com · measured 2026-09-17
    7/7 frames
  9. 9
    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 2026-09-22
    7/7 frames
  10. 10
    WeaveScope
    Observability platform for tracing and monitoring Elixir AI agent runs.
    Perf 86
    Acce 91
    Sec 100
    Priv 70
    Rel 90
    Std 92
    Disc 85
    weavescope.com · measured 2026-09-16
    7/7 frames
  11. 11
    Arize AI
    Arize AI provides an observability and evaluation platform for production AI applications.
    Perf 54
    Acce 97
    Sec 70
    Priv 100
    Rel 100
    Std 89
    Disc 100
    arize.com · measured 2026-09-17
    7/7 frames
  12. 12
    Foglamp
    Observability platform for monitoring AI agents and LLM calls.
    Perf 52
    Acce 93
    Sec 45
    Priv 100
    Rel 100
    Std 92
    Disc 100
    foglamp.dev · measured 2026-09-23
    7/7 frames
  13. 13
    Latitude
    Open-source AI agent observability and monitoring platform.
    Perf 71
    Acce 86
    Sec 45
    Priv 100
    Rel 100
    Std 86
    Disc 90
    latitude.so · measured 2026-09-22
    7/7 frames
  14. 14
    Replay Doctor
    Replay Doctor identifies when your prompt cache broke and what it cost you.
    Perf 90
    Acce 93
    Sec 45
    Priv 70
    Rel 100
    Std 92
    Disc 90
    replay.doctor · measured 2026-09-14
    7/7 frames
  15. 15
    OpsVeritas
    OpsVeritas is a monitoring platform for AI agents with cost tracking and failure detection.
    Perf 78
    Acce 94
    Sec 45
    Priv 75
    Rel 100
    Std 92
    Disc 85
    agents.opsveritas.com · measured 2026-09-02
    7/7 frames
  16. 16
    Future AGI
    Future AGI is a platform for testing, evaluating, and monitoring AI agents in production.
    Sec 25
    Priv 100
    Rel 100
    Std 75
    Disc 100
    2 not assessed
    futureagi.com · measured 2026-08-16
    5/7 frames
  17. 17
    Traccia
    Traccia is an observability, evaluation, and policy enforcement platform for AI agents.
    Perf 62
    Acce 96
    Sec 25
    Priv 100
    Rel 75
    Std 100
    Disc 100
    traccia.ai · measured 2026-09-25
    7/7 frames
  18. 18
    axonpush
    Axonpush is an observability platform for tracing and evaluating AI agent workflows.
    Sec 45
    Priv 100
    Rel 75
    Std 75
    Disc 100
    2 not assessed
    axonpush.xyz · measured 2026-09-09
    5/7 frames
  19. 19
    Galileo AI
    AI observability and evaluation platform for monitoring and improving LLM applications.
    Sec 55
    Priv 75
    Rel 92
    Std 75
    Disc 100
    2 not assessed
    galileo.ai · measured 2026-08-21
    5/7 frames
  20. 20
    Braintrust
    Braintrust is a platform for tracing, evaluating, and storing AI application outputs.
    Perf 80
    Sec 90
    Priv 25
    Rel 100
    Std 75
    Disc 100
    1 not assessed
    braintrust.dev · measured 2026-09-17
    6/7 frames
  21. 21
    failproof ai
    Failproof AI monitors AI agents for silent failures and policy violations.
    Perf 60
    Acce 91
    Sec 25
    Priv 75
    Rel 100
    Std 92
    Disc 100
    befailproof.ai · measured 2026-09-07
    7/7 frames
  22. 22
    AgentWatch
    AgentWatch monitors AI agent reliability and detects behavioral drift before users are affected.
    Perf 73
    Acce 96
    Sec 80
    Priv 25
    Rel 100
    Std 92
    Disc 75
    agentwatch.pheneron.com · measured 2026-08-20
    7/7 frames
  23. 23
    ARGUS
    Forensic observability tool for detecting silent failures in AI agent pipelines.
    Perf 79
    Acce 84
    Sec 45
    Priv 25
    Rel 100
    Std 92
    Disc 85
    arguslabs.in · measured 2026-09-15
    7/7 frames
  24. 24
    Helicone
    Helicone is an LLM observability and AI gateway platform for monitoring and routing AI applications.
    Perf 44
    Acce 90
    Sec 45
    Priv 75
    Rel 100
    Std 86
    Disc 70
    helicone.ai · measured 2026-09-21
    7/7 frames
  25. 25
    Heron
    Passive LLM and agent observability by capturing traffic from the network wire.
    Perf 89
    Acce 94
    Sec 45
    Priv 25
    Rel 67
    Std 92
    Disc 57
    heron-ai.pages.dev · measured 2026-09-25
    7/7 frames
  26. 26
    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 2026-09-16
    7/7 frames
  27. 27
    W&B
    W&B is a platform for tracking, evaluating, and managing AI models and applications.
    Sec 60
    Priv 25
    Rel 67
    Std 100
    Disc 85
    2 not assessed
    wandb.ai · measured 2026-09-08
    5/7 frames
  28. 28
    LangWatch
    LangWatch tracks token usage, cost, and traces for Claude Code and other coding agents.
    Sec 45
    Priv 25
    Rel 75
    Std 75
    Disc 100
    2 not assessed
    langwatch.ai · measured 2026-09-09
    5/7 frames
  29. 29
    Promptetheus
    Incident response tool for AI agents running in production.
    Perf 67
    Acce 91
    Sec 45
    Priv 25
    Rel 100
    Std 85
    Disc 35
    promptetheus-console.vercel.app · measured 2026-09-12
    7/7 frames
  30. 30
    AgentOps
    Developer platform for tracing, debugging, and deploying AI agents and LLM apps.
    Perf 47
    Acce 95
    Sec 45
    Priv 25
    Rel 100
    Std 66
    Disc 60
    agentops.ai · measured 2026-09-15
    7/7 frames
  31. 31
    Comet
    Comet is an ML platform for experiment tracking, LLM evaluation, and model monitoring.
    Perf 41
    Acce 94
    Sec 30
    Priv 25
    Rel 75
    Std 76
    Disc 100
    comet.com · measured 2026-09-15
    7/7 frames
  32. 32
    Orchid
    Local proxy tool for recording, inspecting, and replaying AI agent API calls.
    Perf 79
    Acce 89
    Sec 0
    Priv 25
    Rel 25
    Std 79
    Disc 90
    orchidtrace.xyz · measured 2026-09-13
    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 →