head to head · open source
PyRIT vs CyberStrike
PyRIT has 4,731 GitHub stars, 1,012 forks, 281 open issues and last shipped today. CyberStrike has 3,354 stars, 574 forks, 43 open issues and last shipped yesterday. PyRIT leads on adoption by 41% (4,731 vs 3,354 stars). PyRIT is written in Python under MIT; CyberStrike is written in TypeScript under AGPL-3.0. PyRIT has attracted 21% as many forks as stars, CyberStrike 17%. PyRIT was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-security), 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
| PyRIT | CyberStrike | |
|---|---|---|
| GitHub stars | ★ 4.7K | ★ 3.4K |
| License | MIT | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-03 | 2026-11-02 |
| Forks | ⑂ 1.0K | ⑂ 574 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PyRIT if
- You weight community size — 4.7K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick CyberStrike if
- You want the CyberStrike feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and CyberStrike fits your workflow better
About PyRIT
Python Risk Identification Tool for generative AI (PyRIT) The Python Risk Identification Tool for generative AI (PyRIT) is an open source framework built to empower security professionals and engineers to proactively identify risks in generative AI systems. Check out our website for more information about how to use, install, or contribute to PyRIT. Review our security policy to report vulnerabilities privately through the Microsoft Security Response Center. Visit our Discord server to chat with the team and community. Trademarks and Citations This project may contain trademarks or logos for projects, products…
read the full PyRIT overview →
About CyberStrike
English 简体中文 繁體中文 한국어 Deutsch Español Français Italiano Dansk 日本語 Polski Русский Bosanski العربية Norsk Português (Brasil) ไทย Türkçe Українська বাংলা Ελληνικά Tiếng Việt हिन्दी The first open source AI agent built for offensive security. Automated penetration testing from your terminal — plug in your Claude, GPT, or any LLM subscription and turn it into an autonomous red team agent with 13+ specialized agents, 7,600+ security skills, and 120+ OWASP test cases. 150+ AI providers • 5,300+ models • 56+ built in tools • 176+ MCP tools Quick Start • Intelligence Layer • What Makes It…
read the full CyberStrike overview →
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Frequently asked questions
Is PyRIT or CyberStrike more popular?
PyRIT has 4,731 GitHub stars and CyberStrike has 3,354. PyRIT has the larger community by that measure.
Are PyRIT and CyberStrike free?
Both are open source. PyRIT is licensed under MIT and CyberStrike under AGPL-3.0. Neither carries a licence fee.
What is the difference between PyRIT and CyberStrike?
PyRIT is written in Python and CyberStrike in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, PyRIT or CyberStrike?
Choose PyRIT if you want the larger community (4,731 stars) or its MIT licence terms. Choose CyberStrike if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.