Horizon3.ai vs Linx Security
Which for Cyber Defense AI tool is better in 2026?
Horizon3.ai
Autonomous penetration testing with NodeZero, run continuously at production scale
Linx Security
AI-first identity security platform that maps, governs, and remediates identity risk across
Side-by-side
Horizon3.ai is the more established option (raised $178.5M); pricing is comparable on both sides.
| Metric | Horizon3.ai | Linx Security |
|---|---|---|
| Taglinei | Autonomous penetration testing with NodeZero, run continuously at production scale | AI-first identity security platform that maps, governs, and remediates identity risk across |
| Foundedi | 2019🏆 | 2023 |
| HQi | San Francisco, United States | — |
| Employeesi | 201-500🏆 | 11-50 |
| Neuron scorei | 72🏆 | 51 |
| Total fundingi | $178.5M🏆 | $83M |
| Latest roundi | Series D · Jun 2025 | Series B |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Enterprise · Contact sales | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Horizon3.ai and Linx Security.
| Capability | Horizon3.ai | Linx Security |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Horizon3.ai
- Has raised more capital ($178.5M vs $83M)
- Higher Neuron score (72 vs 51)
- More mature (2019)
🔵 Strengths of Linx Security
- Offers a free plan
- Newer company (2023)
Which should you choose?
Choose Linx Security if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI for Cyber Defense tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Horizon3.ai if you want the most established option — it has raised $178.5M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Horizon3.ai vs Linx Security — which is better?
It depends on your priority. Horizon3.ai has raised more capital and is the more established option; Linx Security has broader feature depth. See the side-by-side table above.
Is Horizon3.ai cheaper than Linx Security?
No — Linx Security's cheapest paid plan is Free, while Horizon3.ai's is Enterprise · Contact sales.
Do Horizon3.ai and Linx Security offer free plans?
Horizon3.ai: Free trial only. Linx Security: Yes, has a free plan.
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