Nuclei 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.
Nuclei is free, with no paid plan attached and is listed for template-based vulnerability scanner with thousands of community templates. 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 — Nuclei and PentestGPT are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.
Choose Nuclei if you need template-based vulnerability scanner with thousands of community templates; 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.
| Nuclei | 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 | nuclei scanner, vulnerability scanner open source, nuclei ai templates, projectdiscovery nuclei | pentestgpt, llm penetration testing, ctf ai agent, ai hacking assistant open source |
| Website | github.com | github.com |
| Full page | Nuclei details → | PentestGPT details → |
| Alternatives | Nuclei alternatives → | PentestGPT alternatives → |