Resistant AI vs Unit21
Which Compliance AI tool is better in 2026?
Resistant AI
AI-native fraud detection for documents and transactions, built to fight financial crime
Unit21
AI risk infrastructure for fraud and AML
Side-by-side
Unit21 is the more established option (raised $92M); pricing is comparable on both sides.
| Metric | Resistant AI | Unit21 |
|---|---|---|
| Taglinei | AI-native fraud detection for documents and transactions, built to fight financial crime | AI risk infrastructure for fraud and AML |
| Foundedi | 2019 | 2018🏆 |
| HQi | Prague, CZ | San Francisco, US |
| Employeesi | 51-200 | 51-200 |
| Neuron scorei | 71🏆 | 69 |
| Total fundingi | $64M | $92M🏆 |
| Latest roundi | Series B · Oct 2025 | Series A |
| 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 | Free trial | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Resistant AI and Unit21.
| Capability | Resistant AI | Unit21 |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✗ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Resistant AI
- Higher Neuron score (71 vs 69)
- Newer company (2019)
🔵 Strengths of Unit21
- Has raised more capital ($92M vs $64M)
- Offers a free plan
- More mature (2018)
Which should you choose?
Choose Unit21 if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Compliance tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Unit21 if you want the most established option — it has raised $92M, 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
Resistant AI vs Unit21 — which is better?
It depends on your priority. Resistant AI is the leaner option; Unit21 has broader feature depth. See the side-by-side table above.
Is Resistant AI cheaper than Unit21?
No — Unit21's cheapest paid plan is Free, while Resistant AI's is Free trial.
Do Resistant AI and Unit21 offer free plans?
Resistant AI: Free trial only. Unit21: Yes, has a free plan.
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