Head-to-head
garak vs Promptfoo
Promptfoo leads: the AI models rank it above its rival on 1 of the 1 leaderboard they share. Based on how ChatGPT, Claude, Gemini & Grok rank both across the leaderboard they share — re-polled weekly, reasoning shown verbatim.
| Leaderboard | garak | Promptfoo |
|---|---|---|
| Best AI red teaming and LLM security testing tool | #2 / 8 | #1 / 8 |
Why the models rank garak — on best ai red teaming and llm security testing tool
“The de facto open-source LLM vulnerability scanner — a huge, actively maintained probe library covering jailbreaks, prompt injection, data/PII leakage, toxicity, encoding attacks, and package hallucination, runnable against virtually any model (HuggingFace, OpenAI, local, custom REST) with a single CLI command; free, model-agnostic, and NVIDIA-backed, it's the closest thing to "nmap for LLMs" and the fastest way for a security engineer to get real coverage of known attack classes. Ranked #1 on the assumption the typical practitioner is a security/ML engineer wanting broad, off-the-shelf coverage rather than a managed service.”
Why the models rank Promptfoo — on best ai red teaming and llm security testing tool
“Best overall mix of broad attack coverage, agent/RAG testing, configurable multi-turn strategies, CI/CD automation, extensibility, and accessible open-source tooling”
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Ranks from the merged 4-model leaderboards · re-polled weekly · methodology