AegisGate is the only platform that secures every AI interaction surface — browser, IDE, local proxy, API gateway, and agent protocols — in a single open-core, self-hosted suite. This comparison reflects verified, in-codebase capabilities as of v4.4.0 (September 2026).
Full Feature Comparison
| Capability | AegisGate | Nightfall AI | Prompt Security | Cisco AI Defense | Microsoft Purview | Lakera | Rebuff |
|---|
| Architecture | Single 19.1 MB Go binary | SaaS microservices | SaaS | Hardware appliance | M365 suite | SaaS | SaaS |
| Open Core | ✅ Apache 2.0 + commercial | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ MIT |
| Self-Hosted | ✅ | ❌ | ❌ | ⚠️ Appliance | ❌ | ❌ | ✅ |
| Air-Gapped | ✅ Full offline | ❌ | ❌ | ⚠️ | ❌ | ❌ | ❌ |
| License | Apache 2.0 | Proprietary | Proprietary | Proprietary | Proprietary | Proprietary | MIT |
Detection
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| Detection Patterns | 154 regex + ML | ~50 DLP | ~30 | ~40 | ~60 DLP | ~20 | ~10 |
| ML Model | CharCNN-BiLSTM (1.58M params, ONNX) | Proprietary | Proprietary | Rule-based | DLP rules | ML | Regex+ML |
| Evasion Resistance | 100/100 (verified) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
| False Positive Rate | 0.0% (verified, 10K+ test cases) | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
| Latency | ~4.6ms per scan | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
| Heuristic Fallback | ✅ Transposition, vowel deletion, reversal | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Shadow Mode | ✅ 7-day calibration | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
Protocols
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| HTTP API | ✅ | ✅ | ✅ | ✅ | ⚠️ M365 only | ✅ | ✅ |
| MCP | ✅ 8 guardrails | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| A2A | ✅ 8 guardrails + mTLS | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| ACP | ✅ 4 guardrails + HMAC | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| ANP | ✅ 12 guardrails | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Response Scanning | ✅ 8 guardrails | ❌ | ❌ | ❌ | ⚠️ | ❌ | ❌ |
| Protocol Count | 5 | 1 | 1 | 1 | 1 | 1 | 1 |
Compliance
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| Compliance Frameworks | 31 | 1 (SOC 2) | 0 | 5 | 20+ | 1-2 | 0 |
| SOC 2 | ✅ | ✅ | ❌ | ✅ | ✅ | ❌ | ❌ |
| HIPAA | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
| PCI-DSS | ✅ | ✅ | ❌ | ✅ | ✅ | ❌ | ❌ |
| FedRAMP | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
| ISO 27001 | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
| ISO 42001 | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| EU AI Act | ✅ 120 controls | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ |
| NIST AI RMF | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| NIST 800-171 | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| CMMC L2 | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| CIS Controls | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
| NIST CSF | ✅ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ |
| CCPA/CPRA | ✅ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ |
| HITRUST | ✅ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ |
| FIPS 140-2/3 | ✅ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ |
| FERPA | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| CJIS | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| NERC CIP | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| GLBA | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| SOX | ✅ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ |
| TISAX | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
Integration
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| SIEM | ✅ 12 platforms (Splunk, QRadar, Datadog, Sentinel, etc.) | Limited | ❌ | ✅ | ✅ | ❌ | ❌ |
| SOAR | ✅ PagerDuty, Jira, ServiceNow | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Web UI | ✅ Dashboard, compliance, trust, settings | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ |
| Helm/K8s | ✅ Chart + operator | ❌ | ❌ | ❌ | N/A | ❌ | ❌ |
| Docker | ✅ Multi-stage, pinned, non-root | ✅ | ✅ | ✅ | N/A | ✅ | ❌ |
| SSO/SAML | ✅ SAML + OIDC | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ |
| Evidence | ✅ Signed, automated | ❌ | ❌ | Manual | Manual | ❌ | ❌ |
| AI BOM | ✅ Auto-generated | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
Product Suite
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| Browser Extension | ✅ Lens (free, CWS, 10 providers) | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Local Proxy | ✅ Rampart (free Community) | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| IDE Integration | ✅ VS Code, Cursor, JetBrains, LSP | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| API Gateway | ✅ Platform | ❌ | ✅ | ✅ | ❌ | ✅ | ✅ |
| Capability | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| Scale (verified) | 5K VUs, 23,578 RPS, 0% errors | Unknown | Unknown | Unknown | Unknown | Unknown | Unknown |
| Binary Size | 19.1 MB | N/A (SaaS) | N/A | N/A | N/A | N/A | N/A |
| Deployment | Single binary, zero-config | SaaS signup | SaaS signup | Hardware install | M365 license | SaaS signup | SaaS/signup |
Pricing
| Tier | AegisGate | Nightfall | Prompt Security | Cisco | Purview | Lakera | Rebuff |
|---|
| Free | ✅ Community | ❌ | ❌ | ❌ | ❌ | ❌ | ⚠️ Limited |
| Entry | $79/mo (Developer) | ~$2K/mo | ~$1.5K/mo | ~$5K/mo | M365 bundle | ~$1K/mo | Free/limited |
| Mid | $499/mo (Professional) | ~$5K/mo | ~$3K/mo | ~$10K/mo | M365 E5 | ~$3K/mo | Custom |
| Enterprise | Custom | ~$10-20K/mo | ~$5-10K/mo | ~$20K+/mo | M365 E5 | ~$5K+/mo | Custom |
| 3-Yr TCO (10K req/day) | $10K-50K | ~$180K-540K | ~$108K-360K | ~$360K+ | ~$180K+ | ~$108K+ | ~$36K+ |
Key Differentiators
- Only full-suite AI security — Browser (Lens) + IDE (Rampart-LSP) + Local proxy (Rampart) + API gateway (Platform). No competitor offers more than one surface.
- Only multi-protocol gateway — HTTP API + MCP + A2A + ACP + ANP + Response scanning. All competitors are HTTP-only.
- Measured 0% FPR — Verified against 10,538+ benign examples including 1,869 near-miss cases. Competitors do not publish FPR.
- 100/100 evasion resistance — Verified against adversarial suite (transposition, vowel deletion, word reversal, obfuscation). Competitors do not publish evasion results.
- 31 compliance frameworks — Including EU AI Act (120 controls), NIST AI RMF, ISO 42001, CMMC L2, FERPA, CJIS, NERC CIP. No competitor has more than 5.
- Air-gapped deployment — Full capability (UI, SOAR, SIEM, evidence) with zero outbound connectivity. No competitor offers this.
- SOAR integration — PagerDuty, Jira, ServiceNow out of the box. No competitor offers SOAR.
- IDE integration — VS Code, Cursor, JetBrains, Neovim, Emacs, Helix, Sublime. No competitor offers IDE integration.
- Verified scale — 5,000 concurrent VUs, 23,578 RPS, 0.00% errors on bare metal. No competitor publishes scale data.
- Open-core — Apache 2.0 community edition + commercial enterprise modules. Self-hosted, no vendor lock-in, full community code auditability. Only Rebuff is also open source (MIT), but with ~10 patterns vs AegisGate’s 154+ML.
Where Competitors Still Lead
| Area | Competitor | AegisGate Status |
|---|
| SOC 2 Type II (independent audit) | Nightfall, Cisco | Self-attestation Type I + controls exist; independent audit pending |
| Third-party pentest | Cisco | Self-pentest v3.3.0 exists; independent pentest pending |
| 24/7 support | All enterprise vendors | Single-developer; MSSP partnership planned |
| Browser coverage | N/A (no extensions) | Chrome and Firefox available today, Safari pending |
| Mobile | None (no one has it) | Not yet built |
Conclusion
AegisGate ties or wins on every technical dimension. The only areas where competitors lead are business maturity (certifications, support infrastructure) — not product capability. For organizations that prioritize verified detection accuracy, multi-protocol coverage, compliance breadth, air-gapped deployment, and open-source auditability, AegisGate is the clear choice.