Quantexa vs Siena AI
Which Customer Support AI tool is better in 2026?
Quantexa
Decision Intelligence platform for fraud and AML
Siena AI
Empathic autonomous AI customer service agent for commerce brands
Side-by-side
Quantexa leads on both fronts — more capital raised ($550M) and a lower entry price than Siena AI.
| Metric | Quantexa | Siena AI |
|---|---|---|
| Taglinei | Decision Intelligence platform for fraud and AML | Empathic autonomous AI customer service agent for commerce brands |
| Foundedi | 2016🏆 | 2022 |
| HQi | London, GB | San Francisco, US |
| Employeesi | 501-1000 | 11-50🏆 |
| Neuron scorei | 66🏆 | 54 |
| Total fundingi | $550M🏆 | $11.1M |
| Latest roundi | Series F · Mar 2025 | Seed |
| Valuationi | $2.6B🏆 | — |
| Cheapest paid plani | —🏆 | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✓ |
| Top tier pricei | Enterprise Platform · Contact sales | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Free |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Quantexa and Siena AI.
| Capability | Quantexa | Siena AI |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✓ | ✓ |
| Webhooks | ✓ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 3 (python, java, scala) | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Quantexa
- Has raised more capital ($550M vs $11.1M)
- Higher Neuron score (66 vs 54)
- More mature (2016)
🔵 Strengths of Siena AI
- Offers a free plan
- Offers a free trial
- Newer company (2022)
Which should you choose?
Choose Quantexa if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Customer Support tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Quantexa if you want the most established option — it has raised $550M, 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
Quantexa vs Siena AI — which is better?
It depends on your priority. Quantexa has raised more capital and is the more established option; Siena AI has broader feature depth. See the side-by-side table above.
Is Quantexa cheaper than Siena AI?
Yes — Quantexa's cheapest paid plan is Enterprise · Contact sales, while Siena AI's is Free.
Do Quantexa and Siena AI offer free plans?
Quantexa: Paid only. Siena AI: Yes, has a free plan.
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