Langfuse vs PentAGI

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 +765 for PentAGI.
  • Pick Langfuse for: open-source LLM engineering platform for observability, evaluation, prompt and dataset management. Pick PentAGI for: fully autonomous AI Agents system capable of performing complex penetration testing tasks.

From GitHub data refreshed daily.

Langfuseopen-source

Open-source LLM engineering platform for observability, evaluation, prompt and dataset management

P
PentAGIopen-source

Fully autonomous AI Agents system capable of performing complex penetration testing tasks

Metrics

LangfusePentAGI
Stars35.3k25.2k
Star velocity /mo1.8k765
Commits (90d)2.0k311
Releases (6m)102
Overall score0.90672926166320360.7687359680048651

Pros

  • +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

    • -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

      • •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, Langfuse or PentAGI?
        Langfuse has more GitHub stars (35,301 vs 25,199).
        Which is more actively developed, Langfuse or PentAGI?
        Langfuse had more commits in the last 90 days (2,007 vs 311).
        Should I use Langfuse or PentAGI?
        Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.
        Langfuse vs PentAGI (2026): GitHub Stats, Features & Which to Choose