garak vs Promptfoo

Side-by-side comparison of two AI agent tools

Short answer

  • Promptfoo is growing faster: +1,110 GitHub stars in the last 30 days vs +200 for garak.
  • Pick garak for: the LLM vulnerability scanner. Pick Promptfoo for: open-source CLI and library for evaluating and red-teaming prompts, agents, RAG systems, and LLM apps.

From GitHub data refreshed daily.

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garakopen-source

the LLM vulnerability scanner

Promptfooopen-source

Open-source CLI and library for evaluating and red-teaming prompts, agents, RAG systems, and LLM apps

Metrics

garakPromptfoo
Stars9.4k25.7k
Star velocity /mo2001.1k
Commits (90d)227920
Releases (6m)410
Downloads (30d, npm + PyPI)36.2K3.0M
Overall score0.66194749093000540.8639349362705032

Pros

    • +Comprehensive testing suite covering both performance evaluation and security red teaming in a single tool
    • +Multi-provider support with easy comparison between OpenAI, Anthropic, Claude, Gemini, Llama and dozens of other models
    • +Strong CI/CD integration with automated pull request scanning and code review capabilities for production deployments

    Cons

      • -Requires API keys and credits for multiple LLM providers, which can become expensive for extensive testing
      • -Command-line focused interface may have a learning curve for teams preferring GUI-based tools
      • -Limited to evaluation and testing - does not provide actual LLM application development capabilities

      Use Cases

        • •Automated testing and evaluation of prompt performance across different models before production deployment
        • •Security vulnerability scanning and red teaming of LLM applications to identify potential risks and compliance issues
        • •Systematic comparison of model performance and cost-effectiveness to optimize AI application architecture
        View garak DetailsView Promptfoo Details

        FAQ

        Which is more popular, garak or Promptfoo?
        Promptfoo has more GitHub stars (25,665 vs 9,414).
        Which is more actively developed, garak or Promptfoo?
        Promptfoo had more commits in the last 90 days (920 vs 227).
        Should I use garak or Promptfoo?
        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.