garak (NVIDIA) is free, with no paid plan attached. PentestGPT is free, with no paid plan attached. Both are listed under Security & IT Operations, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.
garak (NVIDIA) is free, with no paid plan attached and is listed for open-source scanner probing LLMs for prompt injection, jailbreaks, leakage and toxicity. PentestGPT is free, with no paid plan attached and is listed for agentic framework automating penetration-testing and CTF tasks with LLMs. Both sit in Security & IT Operations.
Neither — garak (NVIDIA) and PentestGPT are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.
Choose garak (NVIDIA) if you need open-source scanner probing LLMs for prompt injection, jailbreaks, leakage and toxicity; choose PentestGPT if you need agentic framework automating penetration-testing and CTF tasks with LLMs. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.
| garak (NVIDIA) | PentestGPT | |
|---|---|---|
| Pricing tier | Free | Free |
| Free to start | Yes | Yes |
| Category | Industry-Specific Tools | Industry-Specific Tools |
| Type | Security & IT Operations | Security & IT Operations |
| Listed capabilities |
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| Tags | garak llm scanner, llm vulnerability scanner, ai red teaming tool, prompt injection tester, nvidia garak | pentestgpt, llm penetration testing, ctf ai agent, ai hacking assistant open source |
| Website | github.com | github.com |
| Full page | garak (NVIDIA) details → | PentestGPT details → |
| Alternatives | garak (NVIDIA) alternatives → | PentestGPT alternatives → |