OpenAI Evals vs Langfuse
Side-by-side comparison of two AI agent tools
Short answer
- Langfuse is growing faster: +1,812 GitHub stars in the last 30 days vs +230 for OpenAI Evals.
- Pick OpenAI Evals for: evals is a framework for evaluating LLMs and LLM systems, and an open-source registry of benchmarks. Pick Langfuse for: open-source LLM engineering platform for observability, evaluation, prompt and dataset management.
From GitHub data refreshed daily.
OpenAI Evalsfree
Evals is a framework for evaluating LLMs and LLM systems, and an open-source registry of benchmarks.
Langfuseopen-source
Open-source LLM engineering platform for observability, evaluation, prompt and dataset management
Metrics
| OpenAI Evals | Langfuse | |
|---|---|---|
| Stars | 19.5k | 35.3k |
| Star velocity /mo | 230.47619047619048 | 1.8k |
| Commits (90d) | 0 | 2.0k |
| Releases (6m) | 0 | 10 |
| Overall score | 0.3254799703183847 | 0.9067292616632036 |
Pros
- +提供完整的LLM评估框架,包含丰富的预置基准测试注册表
- +支持自定义评估开发,可针对特定业务场景和用例进行定制
- +现在可直接在OpenAI Dashboard中运行,也支持本地部署,使用灵活
- +Open source with MIT license allowing full customization and transparency, plus active community support
- +Comprehensive feature set combining observability, prompt management, evaluations, and datasets in one platform
- +Extensive integrations with major LLM frameworks and tools including OpenTelemetry, LangChain, and OpenAI SDK
Cons
- -需要OpenAI API密钥和相关费用,运行评估可能产生不小的成本
- -使用Git-LFS存储评估数据,增加了初始设置的复杂性
- -主要针对OpenAI模型优化,对其他LLM供应商的支持可能有限
- -May require significant setup and configuration for self-hosted deployments
- -Could be overwhelming for simple use cases that only need basic LLM monitoring
- -Self-hosting requires technical expertise and infrastructure resources
Use Cases
- •测试不同OpenAI模型版本对特定业务工作流程的影响和性能差异
- •为领域特定的LLM应用构建自定义基准测试和评估指标
- •使用企业私有数据创建内部评估套件,而不暴露敏感信息
- •Production LLM application monitoring to track performance, costs, and identify issues in real-time
- •Prompt engineering and management for teams collaborating on optimizing model prompts and tracking versions
- •LLM evaluation and testing to measure model performance across different datasets and use cases
FAQ
- Which is more popular, OpenAI Evals or Langfuse?
- Langfuse has more GitHub stars (35,301 vs 19,542).
- Which is more actively developed, OpenAI Evals or Langfuse?
- Langfuse had more commits in the last 90 days (2,007 vs 0).
- Should I use OpenAI Evals or Langfuse?
- Compare their capabilities, limitations and "best for" notes above. Trying each on a small task is the fastest way to decide.