head to head · open source
Anthropic-Cybersecurity-Skills vs PentestGPT
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars, 4,318 forks, 48 open issues and last shipped 2 months ago. PentestGPT has 16,247 stars, 2,838 forks, 81 open issues and last shipped 4 months ago. Anthropic-Cybersecurity-Skills leads on adoption by 118% (35,453 vs 16,247 stars). Anthropic-Cybersecurity-Skills is written in Python under Apache-2.0; PentestGPT is written in Python under MIT. Anthropic-Cybersecurity-Skills has attracted 12% as many forks as stars, PentestGPT 17%. Anthropic-Cybersecurity-Skills was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (llm), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Anthropic-Cybersecurity-Skills | PentestGPT | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 16K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-08-31 | 2026-07-14 |
| Forks | ⑂ 4.3K | ⑂ 2.8K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Anthropic-Cybersecurity-Skills if
- You weight community size — 35K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick PentestGPT if
- You want the PentestGPT feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and PentestGPT fits your workflow better
About Anthropic-Cybersecurity-Skills
Anthropic Cybersecurity Skills The largest open source cybersecurity skills library for AI agents 818 production grade cybersecurity skills · 34 security domains · 6 framework mappings · 26+ AI platforms Get Started · What's Inside · Frameworks · Platforms · Contributing ⚠️ Community Project — This is an independent, community created project. Not affiliated with Anthropic PBC. 🔐 Authorized & lawful use only. This library includes offensive and dual use techniques (e.g. red team C2, phishing simulation, exploitation) intended for authorized penetration testing, security research, defense, and education . Only…
read the full Anthropic-Cybersecurity-Skills overview →
About PentestGPT
[![Contributors][contributors shield]][contributors url] [![Forks][forks shield]][forks url] [![Stargazers][stars shield]][stars url] [![Issues][issues shield]][issues url] [![MIT License][license shield]][license url] [![Discord][discord shield]][discord url] PentestGPT AI Powered Autonomous Penetration Testing Agent Published at USENIX Security 2024 Official Website: pentestgpt.com » Research Paper · Report Bug · Request Feature Demo Installation Watch on YouTube PentestGPT in Action Watch on YouTube What's New in v1.0 (Agentic Upgrade) Multi Stage Pipeline The agent works through staged phases (recon →…
read the full PentestGPT overview →
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Frequently asked questions
Is Anthropic-Cybersecurity-Skills or PentestGPT more popular?
Anthropic-Cybersecurity-Skills has 35,453 GitHub stars and PentestGPT has 16,247. Anthropic-Cybersecurity-Skills has the larger community by that measure.
Are Anthropic-Cybersecurity-Skills and PentestGPT free?
Both are open source. Anthropic-Cybersecurity-Skills is licensed under Apache-2.0 and PentestGPT under MIT. Neither carries a licence fee.
What is the difference between Anthropic-Cybersecurity-Skills and PentestGPT?
Anthropic-Cybersecurity-Skills is written in Python and PentestGPT in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Anthropic-Cybersecurity-Skills or PentestGPT?
Choose Anthropic-Cybersecurity-Skills if you want the larger community (35,453 stars) or its Apache-2.0 licence terms. Choose PentestGPT if its feature set, stack or MIT licence fits better. Both are self-hostable.