Gray Swan vs Nox Security
Gray Swan vs Nox Security, compared side by side on 12 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Gray Swan is on 63/100 and Nox Security on 8/100.
Where each one leads
Gray Swan
- our overall score: 63/100 against 8/100
- agent readiness: 39/100 against 21/100
Nox Security
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Gray Swan | Nox Security |
|---|---|---|
| What it is | Gray Swan provides enterprise-grade security solutions for LLMs, developed by the pioneers of AI vulnerability research, enabling confident AI deployment. | Nox.ai provides an AI-powered platform for real-time threat detection and response, focusing on proactive cybersecurity for enterprises. |
| Category | Cybersecurity, AI Safety, AI Alignment, Large Language Model | Cybersecurity, Threat Detection, Endpoint Security, Cloud Security |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2023 | 2026 |
| Headquarters | Pittsburgh, United States | תל אביב - יפו, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Gray Swan | Nox Security |
|---|---|---|
| Employees | 81 | Not published |
| Total funding | $45.7M | Not published |
| Latest round | Series A | Not published |
| Valuation | $200M | Not published |
| LinkedIn followers | 7,116 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Gray Swan | Nox Security |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 63/100 | 8/100 |
| Traction | 57/100 | Not published |
| Team | 70/100 | Not published |
| Search visibility | 23/100 | 12/100 |
| Quality | 72/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | F (21/100) |
| Domain ratingLink authority, 0-100 | 64/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Gray Swan | Nox Security |
|---|---|---|
| Hosting | Not detected | Google Cloud |
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Not detected |
| Frameworks | Tailwind CSS | Tailwind CSS, Bootstrap |
| Analytics | PostHog | Not detected |
| Support stack | HubSpot | Not detected |
What users say
| Measure | Gray Swan | Nox Security |
|---|---|---|
| Reddit sentimentThreads we track | 5 positive, 0 negative across 5 threads | Not published |
“Gray Swan AI—where AI security meets the underground. This is the proving ground for red teamers, hackers, & AI skeptics pushing models to their limits. Jailbreak, exploit, & expose vulnerabilities in cutting-edge AI systems.”r/
Gray Swan vs Nox Security: common questions
Which is better, Gray Swan or Nox Security?
On our 0-100 score Gray Swan rates higher (63/100 against 8/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 12 data points above: read the rows that match what you are buying for.
How do Gray Swan and Nox Security compare on the numbers?
Gray Swan leads on our overall score (63/100 against 8/100), agent readiness (39/100 against 21/100).
What do real users say about Gray Swan and Nox Security?
Gray Swan: 5 positive and 0 negative mentions across 5 Reddit threads we track.
Read the full Gray Swan review and pricing or the Nox Security review and pricing. You can also browse other Gray Swan alternatives we track.

