Belvedir vs Gray Swan
Belvedir vs Gray Swan, compared side by side on 14 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: Belvedir is on 12/100 and Gray Swan on 63/100.
Where each one leads
Belvedir
Leads on none of the measures we hold for both companies.
Gray Swan
- our overall score: 63/100 against 12/100
- agent readiness: 39/100 against 28/100
- domain rating: 64/100 against 7/100
- headcount: 81 against 1
- LinkedIn following: 7,116 against 46
At a glance
| Measure | Belvedir | Gray Swan |
|---|---|---|
| What it is | Control your AI, business, knowledge, and IP with Belvedir. See everything your AI does in production and improve it on your terms. | Gray Swan provides enterprise-grade security solutions for LLMs, developed by the pioneers of AI vulnerability research, enabling confident AI deployment. |
| Category | AI Governance, AI Observability, AI Testing, AI Safety | Cybersecurity, AI Safety, AI Alignment, Large Language Model |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | Not published | 2023 |
| Headquarters | Not published | Pittsburgh, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Belvedir | Gray Swan |
|---|---|---|
| Employees | 1 | 81 |
| Total funding | Not published | $45.7M |
| Latest round | Not published | Series A |
| Valuation | Not published | $200M |
| LinkedIn followers | 46 | 7,116 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Belvedir | Gray Swan |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 12/100 | 63/100 |
| Traction | 3/100 | 57/100 |
| Team | Not published | 70/100 |
| Search visibility | 20/100 | 23/100 |
| Quality | Not published | 72/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (28/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 7/100 | 64/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Belvedir | Gray Swan |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Next.js, Tailwind CSS | Tailwind CSS |
| Analytics | Not detected | PostHog |
| Support stack | Not detected | HubSpot |
What users say
| Measure | Belvedir | Gray Swan |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 5 positive, 0 negative across 5 threads |
“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/
Belvedir vs Gray Swan: common questions
Which is better, Belvedir or Gray Swan?
On our 0-100 score Gray Swan rates higher (63/100 against 12/100). 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 14 data points above: read the rows that match what you are buying for.
How do Belvedir and Gray Swan compare on the numbers?
Gray Swan leads on our overall score (63/100 against 12/100), agent readiness (39/100 against 28/100), domain rating (64/100 against 7/100), headcount (81 against 1), LinkedIn following (7,116 against 46).
What do real users say about Belvedir and Gray Swan?
Gray Swan: 5 positive and 0 negative mentions across 5 Reddit threads we track.
Read the full Belvedir review and pricing or the Gray Swan review and pricing. You can also browse other Belvedir alternatives we track.

