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Best Observability (2026) | Unfragile

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Observability

132 tools · Browse 132 observability AI artifacts on Unfragile.

Avg score: 58/100

19 free

9 freemium

1 open source

PostHog

Open-source product analytics with LLM observability — traces, costs, evals unified with product metrics.

SafetyBench Eval

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Free

11K safety evaluation questions across 7 categories.

Benchmark

Langfuse

Open-source LLM observability — tracing, prompt management, evaluation, cost tracking, self-hosted.

LangSmith

LangChain's LLMOps platform — tracing, evaluation, prompt hub, dataset management, annotation.

Braintrust

AI evaluation and observability — eval framework, tracing, prompt playground, CI/CD integration.

WhyLabs

AI observability with data quality monitoring and secure statistical profiling.

Lunary

Open-source AI observability with conversation replay and user tracking.

Helicone

LLM observability via proxy — one-line integration, cost tracking, caching, rate limiting.

Evidently AI

ML/LLM monitoring — data drift, model quality, 100+ metrics, dashboards, test suites.

Arize Phoenix

Open-source LLM observability — tracing, evaluation, OpenTelemetry, span analysis.

AgentOps

Observability platform for AI agent debugging.

Opik

LLM evaluation and tracing platform — automated metrics, prompt management, CI/CD integration.

TrendRadar

⭐AI-driven public opinion & trend monitor with multi-platform aggregation, RSS, and smart alerts.🎯 告别信息过载，你的 AI 舆情监控助手与热点筛选工具！聚合多平台热点 + RSS 订阅，支持关键词精准筛选。AI 智能筛选新闻 + AI 翻译 + AI 分析简报直推手机，也支持接入 MCP 架构，赋能 AI 自然语言对话分析、情感洞察与趋势预测等。支持 Docker ，数据本地/云端自持。集成微信/飞书/钉钉/Telegram/邮件/ntfy/bark/slack 等渠道智能推送。

Galileo Observe

AI evaluation platform with automated hallucination detection and RAG metrics.

Galileo

AI evaluation platform with hallucination detection and guardrails.

Fiddler AI

Enterprise AI observability with explainability and fairness for regulated industries.

Athina AI

LLM eval and monitoring with hallucination detection.

OpenLLMetry

OpenTelemetry-based LLM observability with automatic instrumentation.

Baserun

LLM testing and monitoring with tracing and automated evals.

Brand24

Monitor, analyze, and engage with your brand's online presence...

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