29%
cheaper outbound voice
47%
cheaper toll-free numbers
Where Kadeno wins: outbound voice ($0.010 vs Twilio's $0.014/min), toll-free numbers ($1.15 vs $2.15/mo), and flat SMS pricing with no carrier surcharges. Twilio wins on inbound voice rate.
Pricing
Side-by-Side Comparison
| Service | Kadeno | Twilio | Result |
|---|
| Inbound voice | $0.010/min | $0.0085/min | Twilio cheaper |
| Outbound voice | $0.010/min | $0.014/min | Kadeno 29% cheaper |
| Local number | $1.00/mo | $1.15/mo | Kadeno 13% cheaper |
| Toll-free number | $1.15/mo | $2.15/mo | Kadeno 47% cheaper |
| SMS pricing | $0.010/msg flat | $0.0083 + carrier surcharge | Kadeno no surcharges |
| Platform fee | $0 | $0 | — |
Cost at Scale
1,000 Outbound Minutes + 1 Toll-Free Number
| Kadeno | Twilio |
|---|
| Voice (1,000 min outbound) | $10.00 | $14.00 |
| Toll-free number | $1.15 | $2.15 |
| Total | $11.15 | $16.15 |
| Monthly savings | $5.00 (31%) β $60/year |
What's Different
What Kadeno does differently
- Real-time audio streaming β Bidirectional WebSocket audio for AI voice agents, transcription, and live processing. Twilio offers Media Streams but requires TwiML and extra configuration.
- Flat pricing, no surcharges β Twilio adds carrier surcharges on SMS ($0.003β0.010/msg). Kadeno's $0.010/msg is the full price, always.
- AI-engine agnostic β Connect any AI endpoint. Twilio pushes their own AI Assistants product.
- No TwiML β RESTful JSON API. No XML markup language to learn.
When Twilio is the better choice
- Inbound-heavy workloads β Twilio's inbound voice rate ($0.0085/min) is lower. If your traffic is predominantly inbound, Twilio may be cheaper overall.
- Global coverage β Twilio supports 180+ countries. Kadeno currently covers US numbers only.
- Mature ecosystem β Extensive SDKs, helper libraries, and community resources built over 15+ years.
More outbound calls or toll-free numbers? Kadeno is cheaper.
Get your number β
$0.010/min outbound Β· $1.15/mo toll-free Β· no hidden fees