head to head · open source
garak vs Adrian
garak has 9,308 GitHub stars, 1,294 forks, 429 open issues and last shipped 4 days ago. Adrian has 568 stars, 93 forks, 6 open issues and last shipped 5 days ago. garak leads on adoption by 1,539% (9,308 vs 568 stars). garak is written in Python under Apache-2.0; Adrian is written in Python under Apache-2.0. garak has attracted 14% as many forks as stars, Adrian 16%. garak was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (ai, llm-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
| garak | Adrian | |
|---|---|---|
| GitHub stars | ★ 9.3K | ★ 568 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Python |
| Last push | 2026-09-16 | 2026-09-15 |
| Forks | ⑂ 1.3K | ⑂ 93 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick garak if
- You weight community size — 9.3K 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 Adrian if
- You want the Adrian feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Adrian fits your workflow better
About garak
garak is a free, Apache 2.0 command line vulnerability scanner for large language models that probes generative AI systems for hallucination, data leakage, prompt injection, misinformation, toxicity generation, and jailbreaks, and it is aimed at security engineers, red teamers, and AI developers who need to test the models they ship.
read the full garak overview →
About Adrian
Adrian is an open source, Apache 2.0 licensed runtime security engine for AI agents that inspects both what an agent does and why it does it, and can block or hold a risky action before it lands — aimed at teams shipping LLM agents on stacks such as LangChain and LangGraph.
read the full Adrian overview →
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Frequently asked questions
Is garak or Adrian more popular?
garak has 9,308 GitHub stars and Adrian has 568. garak has the larger community by that measure.
Are garak and Adrian free?
Both are open source. garak is licensed under Apache-2.0 and Adrian under Apache-2.0. Neither carries a licence fee.
What is the difference between garak and Adrian?
garak is written in Python and Adrian 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, garak or Adrian?
Choose garak if you want the larger community (9,308 stars) or its Apache-2.0 licence terms. Choose Adrian if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.