Side by side
AI Security Gateway vs Nullgen AI Blocker
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
AI Firewall & LLM Proxy — PII Redaction, Smart Routing, Budget Enforcement
Stop AI prompts before they are submitted.
Primary task
AI security
AI security
Pricing
Freemium · Free + from $29/mo
Freemium · Free + from $5.99/mo
Pricing details
Free + from $29/mo
Free + from $5.99/mo
Billing cycle
Monthly
Monthly
API access
Listed as available
Not documented
Platforms
Web
Web
Integrations
Kubernetes, GitHub, Docker, Slack
Not documented
Source rating
4.7 / 5 · 3 ratings
No rating recorded
Catalog views
9.3k
110
Estimated monthly traffic
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Catalog imported
31 Aug 2026
8 Sep 2026
Listed strengths
- Professional security gateway
- Hardened, stateless firewall
- Supports 300+ models
- Total data sovereignty enforcement
- Real-time redaction of 28+ PII entities
- No signup required, quick setup
- Doesn't block entire sites
- Zero-latency keystroke interception directly in the browser
- Absolute data privacy; no external dependencies
- Seamless mass deployment via MDM (Intune, Jamf, Google Workspace)
Listed limitations
- Wallet mode Pay as you got starts at $10
- Provider optimization not customizable
- Only 28+ PII entities detected
- No OCR scanning customizations
- Pro plan required for BYOK
- No support for non-English websites
- Currently restricted to desktop browser environments
- Mobile support coming soon
- Complexity for non-tech users