head to head · open source
giskard-oss vs pentest-ai
giskard-oss has 5,943 GitHub stars, 560 forks, 64 open issues and last shipped 3 days ago. pentest-ai has 1,799 stars, 329 forks, 2 open issues and last shipped 2 days ago. giskard-oss leads on adoption by 230% (5,943 vs 1,799 stars). giskard-oss is written in Python under Apache-2.0; pentest-ai is written in Python under MIT. giskard-oss has attracted 9% as many forks as stars, pentest-ai 18%. pentest-ai 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
| giskard-oss | pentest-ai | |
|---|---|---|
| GitHub stars | ★ 5.9K | ★ 1.8K |
| License | Apache-2.0 | MIT |
| Written in | Python | Python |
| Last push | 2026-11-02 | 2026-11-03 |
| Forks | ⑂ 560 | ⑂ 329 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick giskard-oss if
- You weight community size — 5.9K 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 pentest-ai if
- You want the pentest-ai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and pentest-ai fits your workflow better
About giskard-oss
Evals, Red Teaming and Test Generation for Agentic Systems Modular, Lightweight, Dynamic and Async first Docs • Website • Community [!IMPORTANT] Giskard v3 is a fresh rewrite designed for dynamic, multi turn testing of AI agents. This release drops heavy dependencies for better efficiency while introducing a more powerful AI vulnerability scanner and enhanced RAG evaluation — both now shipping natively in giskard scan , with no dependency on v2. Only the legacy scan for tabular/ML models remains v2 only. Giskard v2 remains available but is no longer actively maintained. Follow progress → Read the v3…
read the full giskard-oss overview →
About pentest-ai
Website · Quick start · Verification · Documentation · Issues Pentest AI connects an AI client or model to a penetration testing workflow. It investigates applications, records findings, and uses machine oracles to check whether an exploit can be reproduced . Verified findings carry evidence you can replay. Use it through MCP , from the CLI , or in CI . The model helps drive the investigation; an oracle determines whether a finding earns a verified verdict. Test only systems you own or have explicit authorization to assess. Read the acceptable use policy and terms before running an engagement. Quick start…
read the full pentest-ai overview →
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Frequently asked questions
Is giskard-oss or pentest-ai more popular?
giskard-oss has 5,943 GitHub stars and pentest-ai has 1,799. giskard-oss has the larger community by that measure.
Are giskard-oss and pentest-ai free?
Both are open source. giskard-oss is licensed under Apache-2.0 and pentest-ai under MIT. Neither carries a licence fee.
What is the difference between giskard-oss and pentest-ai?
giskard-oss is written in Python and pentest-ai 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, giskard-oss or pentest-ai?
Choose giskard-oss if you want the larger community (5,943 stars) or its Apache-2.0 licence terms. Choose pentest-ai if its feature set, stack or MIT licence fits better. Both are self-hostable.