Cresta vs Siena AI
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Cresta if you want contact center ai platform with autonomous agents and real-time agent assist (Supervised agent, enterprise); choose Siena AI if you want autonomous customer service ai for ecommerce and dtc brands (Supervised agent, usage).
| Cresta | Siena AI | |
|---|---|---|
| What it is | Contact center AI platform with autonomous agents and real-time agent assist | Autonomous customer service AI for ecommerce and DTC brands |
| Type | platform | agent |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | enterprise | usage · $750/mo platform fee + ~$0.90 per automated ticket |
| Best for | enterprise | mid-market, smb |
| Deployment | saas, api | saas |
| Modalities | voice, text, api | text, email |
| Models | model-agnostic, proprietary | model-agnostic |
| Protocols | rest-api, function-calling | rest-api |
| Integrations | Genesys, NICE CXone, Five9, Amazon Connect, Twilio, Cisco | Gorgias, Zendesk, Kustomer, Gladly, Shopify, Recharge |
| Capabilities | 4 documented | 4 documented |
Cresta
- +Unified platform: autonomous AI agent, real-time agent assist, conversation intelligence, and auto-QA in one stack
- +Well-reviewed real-time guidance and 100% automated quality coverage
- +Strong compliance posture (reportedly SOC 2, HIPAA, GDPR, PCI-DSS, ISO/IEC 42001)
- -Expensive, enterprise-only, with multi-week implementation and a dedicated ops owner required
- -No public pricing; the only public figures come from marketplace listings
Siena AI
- +Omnichannel and helpdesk-agnostic: layers on Gorgias, Zendesk, Kustomer, and Gladly, keeping the existing stack
- +Cognitive Reasoning Engine handles multi-intent messages with persistent memory and brand personas
- +Model-agnostic architecture reduces LLM lock-in
- -Shopify-only among major ecommerce platforms, and no voice channel
- -High entry cost and effort ($750/mo plus per-ticket fees, multi-week implementation, no free trial)
Which should you choose?
Cresta is contact center ai platform with autonomous agents and real-time agent assist, best for enterprise. Siena AI is autonomous customer service ai for ecommerce and dtc brands, best for mid-market, smb. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.