Decagon vs Siena AI
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Decagon if you want enterprise ai agents that resolve customer support end to end (Supervised agent, enterprise); choose Siena AI if you want autonomous customer service ai for ecommerce and dtc brands (Supervised agent, usage).
| Decagon | Siena AI | |
|---|---|---|
| What it is | Enterprise AI agents that resolve customer support end to end | Autonomous customer service AI for ecommerce and DTC brands |
| Type | agent | agent |
| Autonomy | Supervised agent | Supervised agent |
| Pricing | enterprise | usage · $750/mo platform fee + ~$0.90 per automated ticket |
| Best for | enterprise, mid-market | mid-market, smb |
| Deployment | saas, api | saas |
| Modalities | text, voice, email | text, email |
| Models | model-agnostic | model-agnostic |
| Protocols | function-calling, rest-api | rest-api |
| Integrations | Zendesk, Salesforce, Intercom, Slack | Gorgias, Zendesk, Kustomer, Gladly, Shopify, Recharge |
| Capabilities | 3 documented | 4 documented |
Decagon
- +High autonomous resolution on common request types
- +True omnichannel: chat, email, and voice
- +Well funded and rapidly growing, low vendor-risk for enterprises
- -Enterprise-only with no public self-serve pricing
- -Aimed at high-volume brands; overkill for very small teams
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?
Decagon is enterprise ai agents that resolve customer support end to end, best for enterprise, mid-market. 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.