ZeroTrusted AI Firewall
ZeroTrusted AI Firewall: Broad inline protection for organizations running LLMs, agents, and AI APIs. Ranked #9 of 30 in LLM Security Tools by our editors (8.5/10); pricing: Pricing on request · 15-day trial; best for security teams needing broad inline AI protection.
At a glance
- Editor score8.5 / 10
- PricingPricing on request · 15-day trial
- Best forSecurity teams needing broad inline AI protection
- Free planNo
- Prompt injection defenseYes
- Facts checked21 Sep 2026
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
Our verdict on ZeroTrusted AI Firewall
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, unsafe outputs, and unauthorized tool use. Security teams can apply redaction for PII, PHI, classified markings, and secrets, while organizations in enterprise and government environments can use inline proxy, out-of-band monitoring, browser, or edge enforcement.
Its strongest fit is breadth. The product combines prompt and response inspection, output filtering for hallucinations, toxicity, and brand safety, tool-use governance with allow-lists, API endpoint protection, rate limiting, and DDoS mitigation. It also includes adversarial ML defenses against model inversion, membership inference, and poisoning, plus behavioral analytics for zero-day LLM threat detection. That range suits teams looking to place several AI security controls across prompts, outputs, agents, and APIs rather than adopt a narrowly focused detector.
The published offering lists an Enterprise plan with 232 AI agents across seven functional categories, 14 compliance frameworks including FedRAMP High, dedicated success management, onboarding, and volume and federal procurement options. Deployment spans SaaS, on-premises, air-gapped, and multi-cloud environments. Pricing is custom, and the product has a 15-day free trial without a credit card requirement, but no free plan. Choose ZeroTrusted AI Firewall when broad policy enforcement and deployment flexibility are priorities; teams seeking a self-serve free tier or simpler plan comparison should look for a different model.
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ZeroTrusted AI Firewall pricing
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ZeroTrusted AI Firewall fact sheet
| Free plan | No |
|---|---|
| Paid from | Not verified |
| Prompt injection defense | Yes |
| PII redaction | Yes |
| Secrets detection | Yes |
| Output guardrails | Yes |
| Model-abuse detection | Yes |
| Deployment model | Hybrid |
| Free trial | 15 days · no card needed |
| Deployment | Cloud, Self-hosted, Browser extension |
| Platforms | Web |
| Compliance & security | SOC 2, ISO 27001, GDPR, HIPAA, PCI DSS |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Pricing | Pricing on request · 15-day trial (source) |
| Website | zerotrusted.ai |
| Facts checked | 21 Sep 2026 |
Alternatives to ZeroTrusted AI Firewall
- Guardrails AIA broad open-source toolkit for runtime LLM validation, policy enforcement, and risk detection.9.3
- LLM GuardA self-hosted toolkit for scanning prompts, outputs, PII, secrets, and LLM risks.9.2
- NVIDIA NeMo GuardrailsA broad, self-hosted toolkit for controlling inputs, outputs, tools, and AI-agent behavior.9.1
See all ZeroTrusted AI Firewall alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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