"Autonomous AI pentesting" is a crowded label right now — but most of what's sold under it wasn't built for a firm running client engagements. Some test the model, not the app. Some sell straight to your client and cut you out. Some are priced in a way that punishes exactly the volume a real pentest practice runs. Here's the landscape as it actually breaks down, and where MILLENNIUMS.AI sits in it.
Adversarially test the model itself — jailbreaks, prompt-injection resistance, safety/robustness scoring — then typically sell a runtime guardrail product to sit in front of it in production.
Custom / undisclosed across all three; Lakera Red has a free community tier (10,000 API requests/month) for individual testing.
Enterprise AI/security teams evaluating a model or platform they own, often already using the vendor's guardrail product.
Genuinely autonomous vulnerability discovery and exploitation, some with real proof-of-concept validation. Escape leans into business-logic bugs (BOLA/IDOR) and API-specific issues; XBOW does adversarial multi-agent exploit chaining; Corgea publishes standard/comprehensive pentest packages at fixed prices.
Corgea — $4,000 (Standard) to $8,000 (Comprehensive), custom Enterprise. XBOW — priced per action, which climbs fast under continuous or high-volume use. Escape — custom, enterprise-oriented.
The app owner buying a pentest (or continuous testing) for their own product — not a firm reselling the work to multiple clients.
Terra Security runs human-in-the-loop agentic testing with business-impact scoring and compliance alignment (SOC 2 / ISO); Hadrian is attack-surface-management-first, triggered by infrastructure changes, focused on external asset monitoring.
Custom, enterprise-scale.
Large regulated enterprises buying directly for their own environment.
Vetted human researcher / pentester communities, formal enterprise contracts, named assessors, deep manual expertise.
Contact sales, enterprise-priced, typically the highest cost tier in the market.
Enterprises needing compliance-grade attestation with a known vendor relationship.
| MILLENNIUMS.AI | AI/LLM red-teaming Mindgard, Lakera, HiddenLayer |
Autonomous app pentesting XBOW, Escape, Corgea |
Enterprise agentic Terra, Hadrian |
Human marketplaces Cobalt, Synack, HackerOne |
|
|---|---|---|---|---|---|
| Tests the full agentic app (not just the model) | Yes | No — model only | Yes | Yes | Yes (manual) |
| PoC-backed findings, not just a risk score | Yes | No | Partial (varies) | Partial | Yes (manual) |
| Maps to OWASP LLM Top 10 / audit evidence | Yes | Partial | No | Partial | Depends on assessor |
| Unlimited client apps, one account | Yes | No | No | No | N/A |
| White-label / co-brand output | Yes | No | No | No | No |
| Priced for firm volume (per-engagement, not per-scan/action) | Yes | Custom | Corgea: per-pentest · XBOW: per-action | Custom, enterprise-scale | Contact sales, enterprise-scale |
| Sells to your client directly (channel-conflict risk) | No — augments your firm | Sometimes | Usually | Usually | Sometimes |
Comparison compiled from public vendor research; verify against each vendor's current site before relying on it. The "sells to your client directly" row reflects each vendor's typical go-to-market motion, not a confirmed policy.
MILLENNIUMS.AI is built to be the tooling layer underneath a pentest firm's own engagement — proof-backed findings on the actual application, delivered under your name, priced the way you already bill.
Book a 30-minute walkthrough and we'll show you actual findings against a representative AI-app target — no commitment, no card required.