Horizon3.ai vs Vanta
Which for Cyber Defense AI tool is better in 2026?
Horizon3.ai
Autonomous penetration testing with NodeZero, run continuously at production scale
Vanta
Agentic trust and compliance automation platform
Side-by-side
Vanta leads on both fronts — more capital raised ($504M) and a lower entry price than Horizon3.ai.
| Metric | Horizon3.ai | Vanta |
|---|---|---|
| Taglinei | Autonomous penetration testing with NodeZero, run continuously at production scale | Agentic trust and compliance automation platform |
| Foundedi | 2019 | 2018🏆 |
| HQi | San Francisco, United States | San Francisco, US |
| Employeesi | 201-500 | 501-1000🏆 |
| Neuron scorei | 60 | 70🏆 |
| Total fundingi | $178.5M | $504M🏆 |
| Latest roundi | Series D · Jun 2025 | Series D · Jul 2025 |
| Valuationi | — | $4.2B🏆 |
| 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 trial |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Horizon3.ai and Vanta.
| Capability | Horizon3.ai | Vanta |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✗ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✓ |
🟢 Strengths of Horizon3.ai
- Newer company (2019)
🔵 Strengths of Vanta
- Has raised more capital ($504M vs $178.5M)
- Higher Neuron score (70 vs 60)
- More mature (2018)
Which should you choose?
Choose Vanta if price matters most — it starts at Free trial, 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 Vanta if you want the most established option — it has raised $504M, 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.
💸 Deals
Vanta YC discount — 20% off + free SOC 2 prep
Y Combinator companies get 20% off Vanta plus a free SOC 2 prep workshop — fast-track your first compliance audit.
Terms: Active YC company only.
Frequently asked questions
Horizon3.ai vs Vanta — which is better?
It depends on your priority. Horizon3.ai is the leaner option; Vanta is cheaper to start. See the side-by-side table above.
Is Horizon3.ai cheaper than Vanta?
No — Vanta's cheapest paid plan is Free trial, while Horizon3.ai's is Enterprise · Contact sales.
Do Horizon3.ai and Vanta offer free plans?
Horizon3.ai: Free trial only. Vanta: Free trial only.
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