head to head · open source
garak vs nono
garak has 9,850 GitHub stars, 1,439 forks, 429 open issues and last shipped 3 days ago. nono has 4,821 stars, 327 forks, 201 open issues and last shipped 2 days ago. garak leads on adoption by 104% (9,850 vs 4,821 stars). garak is written in Python under Apache-2.0; nono is written in Rust under Apache-2.0. garak has attracted 15% as many forks as stars, nono 7%. nono was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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 | nono | |
|---|---|---|
| GitHub stars | ★ 9.8K | ★ 4.8K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Rust |
| Last push | 2026-11-02 | 2026-11-03 |
| Forks | ⑂ 1.4K | ⑂ 327 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick garak if
- You weight community size — 9.8K 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 nono if
- You want the nono feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and nono fits your workflow better
About garak
garak, LLM vulnerability scanner Generative AI Red teaming & Assessment Kit garak checks if an LLM can be made to fail in a way we don't want. garak probes for hallucination, data leakage, prompt injection, misinformation, toxicity generation, jailbreaks, and many other weaknesses. If you know nmap or msf / Metasploit Framework, garak does somewhat similar things to them, but for LLMs. garak focuses on ways of making an LLM or dialog system fail. It combines static, dynamic, and adaptive probes to explore this. garak 's a free tool. We love developing it and are always interested in adding functionality to…
read the full garak overview →
About nono
Built by the team that brought you Sigstore The standard for secure software attestation, used by PyPI, npm, brew, and Maven Central [!NOTE] In the lead up to a 1.0 release, APIs are stabilizing. API changes may still occur where necessary, but will be kept to a minimum. [!IMPORTANT] Organization migration: The official nono registry namespace has moved from always further to nolabs ai . Update any references in your scripts, profiles, and CI. If you already have a pack installed under the old namespace, remove it first before pulling from the new one: The old namespace will be retired — migrate now. Run AI…
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Frequently asked questions
Is garak or nono more popular?
garak has 9,850 GitHub stars and nono has 4,821. garak has the larger community by that measure.
Are garak and nono free?
Both are open source. garak is licensed under Apache-2.0 and nono under Apache-2.0. Neither carries a licence fee.
What is the difference between garak and nono?
garak is written in Python and nono in Rust. 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 nono?
Choose garak if you want the larger community (9,850 stars) or its Apache-2.0 licence terms. Choose nono if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.