Best AI Security Testing Tools in 2026
Updated
In short: F5 BIG-IP APM is ranked #1 of 29 as of 4 October 2026, ahead of OpenSecureAI Scanner and Project Moonshot. The best-ranked option with a free plan is OpenSecureAI Scanner. The lowest first paid tier on this page is PromptGuard at $19/mo.
Evaluating AI systems for security risks calls for attention to the kinds of tests a tool supports and how it can be deployed. Compared on prompt injection tests, jailbreak tests, data leakage tests, unsafe output tests, and custom test cases, these entries cover several distinct testing dimensions. Deployment mode, free-plan availability, and paid starting prices add practical details to consider. F5 BIG-IP APM, OpenSecureAI Scanner, and Project Moonshot are among the listed tools. Match the available test types to the risks you need to examine, then consider which deployment mode and pricing details fit your work.
29 AI security testing tools ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Is your tool on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which AI security testing tool is ranked first on Specifiction?
F5 BIG-IP APM is ranked #1 of 29 with a score of 7.7. OpenSecureAI Scanner is second and Project Moonshot third.
How many of these have a free plan?
10 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, PromptGuard has the lowest first paid tier we found: $19/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing. Paid placements never change a rank.