Best for: treating adversarial testing as a test suite that runs in CI
Open source and commercial
Growing
Ranked list · AI Security
Top 10 AI Security Tools
10 tools, ranked Last reviewed
A practitioner's guide to AI and LLM security tooling: red teaming, runtime guardrails, model artifact scanning, agent controls and governance.
The order follows the roundup The 10 Best AI Security Tools, which explains each pick and where it falls short.
Best for: a fast first read on what a model endpoint will do, before you invest in anything
Open source
Growing
Best for: a dedicated red team building multi turn attack campaigns with custom logic
Open source
Growing
Number 4: LLM Guard
by Protect AI
Best for: input and output scanning where nothing may leave your environment
Open source
Growing
Number 5: Lakera Guard
by Lakera
Best for: low latency injection and jailbreak detection in front of a user facing product
Commercial, free tier
Growing
Number 6: NVIDIA NeMo Guardrails
by NVIDIA
Best for: constraining what a conversation is allowed to do, not just filtering the text
Open source
Growing
Number 7: Protect AI Guardian
by Protect AI
Best for: stopping malicious model artifacts at the point they enter your organization
Commercial
Growing
Number 8: Agentic Radar
by SplxAI
Best for: finding out what your agents can actually reach before you argue about controls
Open source
Emerging
Best for: seeing and governing employee and application AI use across the organization
Commercial
Growing
Number 10: Holistic AI
by Holistic AI
Best for: producing defensible AI risk documentation for regulators and auditors
Commercial
Growing
methodology
How this list was made
How entries are chosen. Every entry is a tool with a published profile in the catalog, in AI and LLM Security. Each note above says why it made this list, for the job in the title, separately from the tool's full profile.
Ranking is editorial. The order is a judgement by the editors about fit for this use case, not a score, a benchmark or a popularity count. A different job can produce a different order.
Advertising has no influence. Slots marked Sponsored are sold separately from the editorial. No vendor can pay to be included, to move up, or to be removed.