ZeroTrusted AI Firewall vs WitnessAI

ZeroTrusted AI Firewall7.0Visit WitnessAI6.8Visit

Higher score ZeroTrusted AI Firewall #6 in LLM Security Tools 7.0/10 Pricing on request · 15-day trial ✓ 5 of 5 features Visit ZeroTrusted.ai

vs

WitnessAI #8 in LLM Security Tools 6.8/10 Pricing on request ✓ 5 of 5 features Visit WitnessAI

• ZeroTrusted AI Firewall fits best

  Security teams needing broad inline AI protection

• WitnessAI fits best

  Organizations needing governed AI activity visibility

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Side by side

Feature	ZeroTrusted AI Firewall 7.0/10 Visit ↗	WitnessAI 6.8/10 Visit ↗
At a glance
Editor score	7.0	6.8
Ranking	#6 in LLM Security Tools	#8 in LLM Security Tools
Best for	Security teams needing broad inline AI protection	Organizations needing governed AI activity visibility
Pricing model	Paid	Paid
Starting price	Not published	Not published
Free plan	—	Not published
Free trial	—	—
Deployment	Cloud, Self-hosted, Browser extension	Cloud
Platforms	Web	Web
Compliance	SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS	SOC 2
Built for	Mid-market, Enterprise	Enterprise
Features ZeroTrusted AI Firewall 5/5 · WitnessAI 5/5
Prompt injection defense	✓	✓
PII redaction	✓	✓
Secrets detection	✓	✓
Output guardrails	✓	✓
Model-abuse detection	✓	✓
Specs
Deployment model	Hybrid	Cloud
Our review
Pros	Inspects prompts, responses, and tool calls with policy rules Redacts PII, PHI, classified data, and secrets Supports SaaS, on-premises, air-gapped, and multi-cloud deployment	Discovers AI activity across employees, applications, models, agents, and MCP connections Blocks prompt injection, jailbreaks, harmful outputs, and policy violations Governs agents, MCP servers, tool calls, data masking, and audit trails
Cons	Custom enterprise pricing can make budgeting less direct No free plan is available The published offering centers on one Enterprise plan	Pricing and plan selection require vendor engagement Cloud deployment may not suit organizations requiring another deployment model Its broad enterprise governance scope may exceed narrower AI security needs
Our verdict	ZeroTrusted AI Firewall is an AI security layer for organizations operating LLMs, agents, and AI APIs. It inspects prompts, model responses, and tool calls in real time, with controls for prompt injection, jailbreaks, data exfiltration,… Read the review →	WitnessAI is a cloud AI security and governance platform for organizations using public and private LLMs, AI applications, developers, and autonomous agents. It is designed for enterprises that need visibility and control across employee… Read the review →

Strengths and trade-offs

• ZeroTrusted AI Firewall — where it wins

  • Inspects prompts, responses, and tool calls with policy rules
  • Redacts PII, PHI, classified data, and secrets
  • Supports SaaS, on-premises, air-gapped, and multi-cloud deployment

  Where it doesn't

  • Custom enterprise pricing can make budgeting less direct
  • No free plan is available
  • The published offering centers on one Enterprise plan

• WitnessAI — where it wins

  • Discovers AI activity across employees, applications, models, agents, and MCP connections
  • Blocks prompt injection, jailbreaks, harmful outputs, and policy violations
  • Governs agents, MCP servers, tool calls, data masking, and audit trails

  Where it doesn't

  • Pricing and plan selection require vendor engagement
  • Cloud deployment may not suit organizations requiring another deployment model
  • Its broad enterprise governance scope may exceed narrower AI security needs

• ZeroTrusted AI Firewall7.0/10 · Pricing on request · 15-day trial

  Broad inline protection for organizations running LLMs, agents, and AI APIs.

  Visit ZeroTrusted.aiFull verdict →
• WitnessAI6.8/10 · Pricing on request

  A broad control layer for governing employee, application, agent, and MCP activity.

  Visit WitnessAIFull verdict →