Alternatives to Opik
Opik: Comet's open-source (Apache-2.0) LLM observability and evaluation platform: traces for agents and multi-turn conversations, datasets and experiments with 30+ LLM-as-a-judge and heuristic metrics, pass/fail test suites, a PyTest integration for CI, online evaluation rules on production traces, guardrails and an agent optimizer. The full platform, backend included, self-hosts free; Opik Cloud is free for 25K spans a month. Looking for something different? Here are other tools in Analytics & Monitoring.
PostHog
Open-source product analytics suite with session replay, feature flags and experiments.
Sentry
Application monitoring for error tracking, tracing and performance.
Plausible
Lightweight, privacy-friendly, open-source web analytics.
Kerno
AI runtime QA for backends: tests user flows against your real stack from inside MCP-capable coding agents.
Tiden
Intent verification for coding agents: keeps versioned specs beside your code and checks agent changes against what you asked for.
Navige
Sits between AI agents and the models they pay for to cut spend via caching, smart routing, context trimming and loop guards.
Parseable
Open-core (AGPL-3.0) observability platform written in Rust: logs, metrics and traces in one binary on S3-compatible object storage, with SQL and PromQL, OpenTelemetry-native ingest, self-hosted or as Parseable Cloud.
Pug
Open-source (AGPL-3.0) product analytics with unified user profiles: autocapture, trends, funnels, retention and user flows; self-host it or start free on EU-hosted, cookieless Pug Cloud.
Costura
Open-source (Apache-2.0), self-hosted AI spend attribution: imports read-only billing from OpenAI, Anthropic, Claude.ai, Codex, OpenRouter, Cursor and GitHub Copilot, attributes each dollar to a key, workspace and person, and ties totals out to each provider's report; in beta.
Cekura
Automated QA and observability for voice and chat AI agents: simulate conversations across personas before launch, monitor production calls for instruction-following and tool-call errors, and plug tests into CI/CD.
KloudMate
AI-powered observability and SRE-Ops: logs, metrics, traces, infrastructure, Kubernetes, RUM, synthetic and database monitoring in one platform, with an AI assistant for root-cause analysis; Pro from $99/month.
Polylane
AI SRE that connects your code, infrastructure and observability data, catches risky pull requests before they merge, investigates production issues and opens a pull request with the fix; free plan, paid from $80/month.
Promptic
Optimization platform for GenAI apps: OpenTelemetry-native LLM tracing, model benchmarking and one-click prompt and agent tuning scored on your own quality and cost metrics; free tier, team plans from €149/month.
Opaline
Team-wide, message-level analytics for Claude Code and Codex sessions: token cost, time and skill usage for every message across your team; open-source CLI, paid team plans.
Latitude
Open-source (MIT) observability and quality platform for AI agents: traces production runs, groups failures into tracked issues with evals attached, dispatches your coding agent to fix them and replays the fix against the failing traces. MCP server and CLI. Free Starter plan with 20K credits a month; Pro $99 a month.
Pulsetic
Monitoring for websites, APIs and services: uptime, real user monitoring, SSL, domains, ports, cron jobs and status pages, with alerts everywhere plus an API and MCP server; free plan, paid from $9/month.
Statable
Privacy-friendly web analytics built for humans and AI agents: a simple dashboard, plus MCP access so Claude, Cursor or Codex can read reports and configure goals and funnels; no cookies, EU-hosted.
Tenbri
Open-source Agent Decision Record: a signed, append-only, hash-chained record of every decision an AI agent makes, verifiable offline; one line instruments Claude, OpenAI and LangGraph agents, with Python and TypeScript SDKs and plain files on storage you control. Apache-2.0, written in Rust.
XTrace
Open-source macOS app (Apple Silicon) that reads your local Claude Code, Codex and Cursor history to show agent activity, estimated human time, API-equivalent spend and how fast you are using your Claude and Codex limits. Apache-2.0.
Argus
Open-source (MIT), self-hosted security operations platform: AI agents triage and investigate alerts with read-only tools, while response playbooks start in shadow mode, use reversible actions and can be approved from Slack.
farol (PR risk map)
Free, open-source (MIT) CLI and GitHub Action from Winnin that runs after your AI code review and tells the approver how risky a pull request is: a 0-100 risk score and verdict from reach, diff coverage, security findings, contract breaks and dependency changes, plus the pages, APIs and jobs the change reaches. Static analysis only, for TypeScript/React, Go and Python; never blocks a merge.
Langfuse
Open-source LLM engineering platform: traces and sessions for LLM apps and agents with token and cost tracking, prompt management, datasets, LLM-as-judge and human evals; OpenTelemetry-based, self-host free or use Langfuse Cloud in the US, EU or Japan.
LangSmith
LangChain's platform for agents: tracing and online and offline evals for any framework, plus managed agent deployment, sandboxes and an LLM gateway; cloud in the US or EU, hybrid or self-hosted on Enterprise.
Arize Phoenix
Arize's AI observability platform, source-available under the Elastic License 2.0: OpenTelemetry tracing through OpenInference for OpenAI, Anthropic, LangGraph, the Vercel AI SDK and more, with LLM evals, datasets, experiments and a prompt playground; runs locally, in Docker or on Kubernetes.
Braintrust
Observability and evals platform for AI agents: trace production calls from OpenAI, Anthropic, Gemini, the Vercel AI SDK, LangChain and more, run experiments scored by LLM judges, Autoevals or your own code, review in playgrounds and human annotation queues, and let the built-in Loop agent generate test cases and build evals. MCP server and a bt CLI. Free Starter plan with unlimited users; Pro $249 a month.
Helicone
Open-source (Apache-2.0) AI gateway and LLM observability platform: point an OpenAI-compatible client at one URL to reach 100+ models with routing and automatic fallbacks, and every request is logged with cost, latency, sessions and agent traces. Prompt versioning, a playground, and scores and datasets for evaluating outputs. Self-host with Docker Compose or use the cloud, free for 10,000 requests a month.
W&B Weave
Weights & Biases' toolkit for tracing and evaluating AI agents: sessions, turns, tool calls and sub-agents as first-class traces, an evaluation framework with comparisons and leaderboards, built-in signals with Slack alerts, guardrail scorers for toxicity, PII and hallucinations, a playground, and an MCP server so coding agents can read traces and run evals. SDK is open source (Apache-2.0); free plan with 1 GB of trace data a month, Pro from $60 a month.
Laminar
Open-source (Apache-2.0) observability for AI agents, written in Rust: one-line OpenTelemetry tracing for the Vercel AI SDK, Browser Use, Stagehand, LangChain, OpenAI, Anthropic and more, Signals that flag behaviour you describe in plain English, evals from an SDK and CLI, browser session recordings, SQL over traces and MCP access for coding agents. Self-host with Docker Compose, or use the cloud, free for 1 GB of data.
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