Decagon vs Stack AI
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both Decagon and Stack AI are credible customer support tools, and the right pick comes down to your priorities.
Decagon — AI customer support agents for enterprises.
Choose Stack AI if you'd rather have a lower starting price (free – $199/mo) and a free plan to start on. No-code platform for enterprise AI agents.
Decagon vs Stack AI: side by side
| Dimension | Decagon | Stack AI |
|---|---|---|
| Starting price | Custom | Free – $199/moWinner |
| Free plan | No | YesWinner |
| Pricing model | Subscription | Freemium |
| Best for | Enterprise | Enterprise, Smb, Teams |
| Platforms | Web, Api | Web, Api |
| Rating | 4.6/5 | 4.5/5 |
Decagon key facts
- Vendor
- Decagon
- Pricing
- Subscription — Custom
- Free tier
- No
- Platforms
- Web, Api
- Best for
- Enterprise
- Editor rating
- 4.6 / 5
- Founded
- 2023
- Headquarters
- San Francisco, CA, USA
Stack AI key facts
- Vendor
- Stack AI
- Pricing
- Freemium — Free – $199/mo
- Free tier
- Yes
- Platforms
- Web, Api
- Best for
- Enterprise, Smb, Teams
- Editor rating
- 4.5 / 5
- Founded
- 2022
- Headquarters
- New York, NY, USA
Frequently asked questions
Is Decagon better than Stack AI?
Neither is universally better — Decagon edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Decagon or Stack AI cheaper?
Stack AI is the more affordable of the two to get started, at free – $199/mo. Decagon starts at custom; Stack AI starts at free – $199/mo.
Can Decagon replace Stack AI?
Yes for most teams — both are customer support tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.