langwatch vs Opik
Side-by-side comparison of two AI agent tools
Short answer
- Opik is growing faster: +606 GitHub stars in the last 30 days vs +275 for langwatch.
- Pick langwatch for: the platform for LLM evaluations and AI agent testing. Pick Opik for: debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive.
From GitHub data refreshed daily.
langwatchfree
The platform for LLM evaluations and AI agent testing
Opikopen-source
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Metrics
| langwatch | Opik | |
|---|---|---|
| Stars | 4.9k | 22.3k |
| Star velocity /mo | 275.2105263157895 | 606 |
| Commits (90d) | 1.6k | 1.1k |
| Releases (6m) | 10 | 10 |
| Downloads (30d, npm + PyPI) | 1.9K | 1.9M |
| Overall score | 0.8083039136612088 | 0.8395960884989896 |
Pros
- +End-to-end agent simulation capabilities that test against full stack including tools, state, and user interactions with detailed failure analysis
- +Open standards approach with OpenTelemetry/OTLP support ensuring no vendor lock-in and framework-agnostic compatibility
- +Integrated workflow combining tracing, evaluation, prompt optimization, and monitoring in a single platform eliminating tool sprawl
- +提供端到端的 AI 应用可观测性，包括详细的链路追踪和性能监控，帮助开发者快速定位问题
- +支持自动化评估和优化，能够自动改进提示词和工具配置，降低手动调优的工作量
- +完全开源且拥有活跃社区支持，提供灵活的部署选项和定制化能力
Cons
- -As a specialized platform, may require learning curve and setup time for teams new to LLM evaluation workflows
- -Self-hosting option available but may require infrastructure management for teams preferring on-premises deployment
- -作为相对较新的工具，可能在某些企业级功能和集成方面还需要进一步完善
- -学习曲线可能较陡，需要开发者具备一定的 AI 应用开发和监控经验
Use Cases
- •Regression testing of AI agents before production deployment using realistic scenario simulations to identify breaking points
- •Production monitoring and observability of LLM-powered applications with detailed tracing and performance evaluation
- •Collaborative prompt engineering and optimization with domain expert annotations and version control integration
- •RAG 聊天机器人的性能监控和优化，追踪检索质量和回答准确性
- •代码助手应用的链路分析，监控代码生成质量和响应时间
- •复杂智能体工作流的调试和评估，跟踪多步骤推理过程的执行效果
FAQ
- Which is more popular, langwatch or Opik?
- Opik has more GitHub stars (22,349 vs 4,908).
- Which is more actively developed, langwatch or Opik?
- langwatch had more commits in the last 90 days (1,587 vs 1,062).
- Should I use langwatch or Opik?
- Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.