garak vs Promptfoo
Side-by-side comparison of two AI agent tools
g
garakopen-source
the LLM vulnerability scanner
Promptfooopen-source
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, Llama, and more. Simple declarative configs with command line and
Metrics
| garak | Promptfoo | |
|---|---|---|
| Stars | 9.4k | 25.6k |
| Star velocity /mo | 782.8333333333334 | 1.1k |
| Commits (90d) | 225 | 895 |
| Releases (6m) | 4 | 10 |
| Overall score | 0.6430029939451773 | 0.8054365104809726 |
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
FAQ
- Which is more popular, garak or Promptfoo?
- Promptfoo has more GitHub stars (25,597 vs 9,394).
- Which is more actively developed, garak or Promptfoo?
- Promptfoo had more commits in the last 90 days (895 vs 225).
- 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.