Fiddler Labs vs Gray Swan
Fiddler Labs vs Gray Swan, compared side by side on 18 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: Fiddler Labs is on 43/100 and Gray Swan on 63/100.
Where each one leads
Fiddler Labs
- agent readiness: 55/100 against 39/100
- LinkedIn following: 22,248 against 7,116
Gray Swan
- our overall score: 63/100 against 43/100
At a glance
| Measure | Fiddler Labs | Gray Swan |
|---|---|---|
| What it is | AI observability platform for understanding, monitoring, and improving ML models in production. | Gray Swan provides enterprise-grade security solutions for LLMs, developed by the pioneers of AI vulnerability research, enabling confident AI deployment. |
| Category | AI Observability, MLOps, Data Platform, Analytics Platform | Cybersecurity, AI Safety, AI Alignment, Large Language Model |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2019 | 2023 |
| Headquarters | Mountain View, United States | Pittsburgh, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Fiddler Labs | Gray Swan |
|---|---|---|
| Employees | Not published | 81 |
| Total funding | Not published | $45.7M |
| Latest round | Not published | Series A |
| Valuation | Not published | $200M |
| LinkedIn followers | 22,248 | 7,116 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Fiddler Labs | Gray Swan |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 43/100 | 63/100 |
| Traction | Not published | 57/100 |
| Team | Not published | 70/100 |
| Search visibility | 32/100 | 23/100 |
| Quality | 68/100 | 72/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (55/100) | F (39/100) |
| Domain ratingLink authority, 0-100 | 71/100 | 64/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Fiddler Labs | Gray Swan |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Webflow |
| Frameworks | Not detected | Tailwind CSS |
| Analytics | Google Tag Manager | PostHog |
| Support stack | Not detected | HubSpot |
| Open source | Yes | No |
What users say
| Measure | Fiddler Labs | Gray Swan |
|---|---|---|
| Reddit sentimentThreads we track | 5 positive, 0 negative across 5 threads | 5 positive, 0 negative across 5 threads |
“Fiddler Labs, SRI and Berkeley experts open up the black box of machine learning at TC Sessions: Robotics+AI.”r/techcrunch
“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/
Fiddler Labs vs Gray Swan: common questions
Which is better, Fiddler Labs or Gray Swan?
On our 0-100 score Gray Swan rates higher (63/100 against 43/100). 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 18 data points above: read the rows that match what you are buying for.
How do Fiddler Labs and Gray Swan compare on the numbers?
Fiddler Labs leads on agent readiness (55/100 against 39/100), LinkedIn following (22,248 against 7,116). Gray Swan leads on our overall score (63/100 against 43/100).
What do real users say about Fiddler Labs and Gray Swan?
Fiddler Labs: 5 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/techcrunch. Gray Swan: 5 positive and 0 negative mentions across 5 Reddit threads we track.
Read the full Fiddler Labs review and pricing or the Gray Swan review and pricing. You can also browse other Fiddler Labs alternatives we track.

