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HiddenLayer vs Zenity
HiddenLayer and Zenity are AI security tools, which find and control the AI models, agents and apps running inside a company. Our editors read both companies' own sites, then read what security teams say about the two tools in public reviews, community boards and chat forums. The table below compares price, limits and features.
| What buyers compare | HiddenLayer | Zenity |
|---|---|---|
| Integrations and featuresSources 3, 4 | AI discovery, AI supply chain security, AI attack simulation and AI runtime security | Microsoft 365 Copilot, Copilot Studio, Power Platform, Salesforce Agentforce, ServiceNow, ChatGPT Enterprise, Claude Enterprise, Amazon Bedrock and Google Vertex AI |
| Best forSources 1, 2 | Security and ML platform teams that need to list their models, scan third-party models and protect models in production | Security and platform teams that need control over agents, copilots and low-code AI apps across their SaaS tools |
List prices in US dollars per month before tax, as published on each vendor's site on October 16, 2026, billed monthly unless the cell says otherwise. "Quote" means the vendor sets the price through its sales team. A green check marks a row where the published data shows a clear edge.
Which one fits
HiddenLayer focuses on the models themselves, while Zenity focuses on agents built in business platforms such as Copilot Studio.
Choose HiddenLayer if
- You use third-party models and need them scanned for hidden code and weaknesses before they run.
- You want to attack your own AI apps before someone else does. HiddenLayer sells AI attack simulation.
- You want runtime protection for models in production.
Choose Zenity if
- Your staff build agents and apps in Copilot Studio, Power Platform or Salesforce, and security needs to see what they connect to.
- You want coverage for coding agents and personal AI agents as well as business platforms.
- You need MCP security and AI detection and response.
What buyers say
“Zenity is better when the risk is Copilot reading SharePoint your permissions never cleaned up. HiddenLayer is better when you’re securing the model endpoints themselves, not the M365 graph.”
toomuchtodo · HN · · source
“HiddenLayer sells model security, not models, so it’s the window-hardening vendor. Zenity is the one I’d open for living-off-Copilot style SaaS AI abuse.”
jamiejones1 · HN · · source
“We picked HiddenLayer because our risk sits in the models, with third-party models to scan and production models to protect. Zenity is stronger where staff build agents in Copilot Studio and Power Platform, which is a smaller part of our estate.”
Security architect, regional bank
Representative buyer view
Verdict
Choose HiddenLayer (8.1 out of 10, Recommend) if your risk sits in the models, such as third-party models that need scanning and models in production that need runtime protection. Choose Zenity (6.9 out of 10, Conditional recommend) if your staff build agents in Copilot Studio, Power Platform or Salesforce and security needs to see what those agents connect to.
Methodology
We read the HiddenLayer and Zenity pricing pages and product sites on October 16, 2026 and recorded every published price, limit and plan feature. A cell reads "Not published" when the vendor does not state that detail on its site, and rows where neither vendor publishes anything were left out.
Scores, best-fit notes and buyer quotes come from the AIR reviews of each product, which weight practitioner reviews at 40%, hands-on product checks at 35%, pricing at 15% and docs at 10%. Paid reviews and pay-for-play sites are excluded. Quotes marked Representative buyer view are written by AIR to reflect buyer feedback and carry no source link.