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opik

The premium Open Source alternative to LangSmith

🎯 Best for:Teams needing deep visibility into LLM calls without cloud data leakage.
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Apache-2.0License

What is opik?

Replaces proprietary LLM observability and evaluation platforms. Provides automated trace logging, heuristic-based evaluations, and production-ready dashboards for monitoring agentic workflows and RAG systems.

Tech Stack
PythonMonitoring & Logs

Why opik?

  • • Comprehensive tracing of nested calls
  • • Integrated evaluation framework
  • • Production-ready dashboard UI

Limitations

  • • Requires backend infrastructure
  • • Newer project with evolving API
  • • Integration requires code changes
3/6/2026
Last Update
1,376
Forks
163
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to opik instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on LangSmith)
Self-Hosted
$0
/ year
Team Size10 Users
150+
Launch Detailed Calculator
SAVE 100%

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