Quick answer: On each vendor's published US list rates, read 28 September 2026, an AI voice agent running 100,000 minutes a month (60% outbound, WebSocket media streaming, 20 local numbers) costs US$1,643 on Twilio Programmable Voice and US$998 on the Telnyx Voice API. Telnyx's SIP rates are "from" figures; Twilio's Programmable Voice outbound rate is flat across the US except Alaska.
What this covers
- Is Twilio or Telnyx cheaper for my AI voice agent?
- What each vendor actually charges per minute in the US
- A worked monthly bill: 100,000 minutes, 60% outbound
- How far can the Telnyx "from" rate rise before the answer changes?
- The charges that are not on the per-minute line
This is a technical summary. The full guide — with the tables and worked examples — is on our site: *Twilio vs Telnyx for AI Voice Agents: US Costs*.
Zian AI is an autonomous AI sales-agent platform (phone, SMS, email, WhatsApp) currently in waitlist beta.
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