Twilio Alternatives 2026: Telnyx, Plivo, Vonage, Bandwidth and Sinch Priced on One AI Receptionist Month

What are the best Twilio alternatives? The short answer

As of October 25, 2026, the Twilio alternatives that publish self-serve US prices are Telnyx, Plivo, Vonage and Bandwidth, with Sinch publishing worked examples. All of them receive a local call for less than Twilio's $0.0085 a minute, from about $0.0049 on Vonage to $0.008 on Sinch. On one real workload, an AI receptionist taking 400 calls a month, the phone side runs about $9 to $15 on the alternatives against about $18 on Twilio. The gap is under $10 a month, so pick on what your voice platform supports, not on the rate card.

Every rate below comes from each carrier's own pricing page, read on the date shown in the Sources list at the end. Carrier prices change often and some are "from" prices, so check the live page before you sign a budget.

Twilio alternatives, priced side by side

These are the US voice lines a phone or AI voice build actually uses: a local number, receiving a call, calling out (to transfer a caller to a person), recording, and streaming live call audio to an AI.

Two notes on how to read this. Bandwidth bills calls in 6-second increments and says full pricing is on request, so its page is a starting point, not a quote. Sinch's live rate table rendered as placeholders when we read it, so its figures come from the worked examples in Sinch's own pricing FAQ.

One workload on every carrier: an AI receptionist taking 400 calls a month

Rate cards do not compare until you put a month through them. This is the same workload our Twilio pricing and Telnyx breakdowns use: a service business whose AI receptionist answers 400 calls a month on one local number, 3 minutes each (1,200 inbound minutes). A quarter of callers get put through to the owner's cell for about 2 minutes (200 outbound minutes), and every call is recorded.

With streaming added, which is how most custom AI receptionists hear the caller, Plivo comes out cheapest at about $9.40, because its page lists audio streaming and noise cancellation as included. Twilio lands at about $23. Add one appointment text per caller and the order holds: 400 texts are about $3.32 on Twilio, $3.08 on Plivo and $1.60 on Telnyx or Bandwidth, each before carrier fees of roughly $1.40 to $2.00 (Plivo publishes $0.0035 to AT&T, $0.0045 to T-Mobile and $0.005 to Verizon per outbound text).

Now put that next to the AI. The same 1,200 minutes on a voice AI platform cost about $111 to $184 a month in our voice AI pricing comparison. Switching carriers saves $5 to $14 of that. It is worth doing on a new build. It is rarely worth rebuilding a working one for.

What actually decides which Twilio alternative to use

• Does your voice platform support it? Vapi's docs, read October 25, 2026, list native number imports for Twilio and Telnyx and SIP trunk guides for Plivo and DIDWW. Retell charges nothing for telephony when you bring your own SIP trunk, against $0.015 a minute and $2 a number on its own lines. A carrier your platform does not document is a carrier your builder has to debug.
• Who owns the number. Vapi's free number is inbound only and, per its docs, cannot be ported out because it sits on Vapi's carrier account. A number on your own Twilio, Telnyx or Plivo account stays yours if you change voice platforms. For a business whose phone number is on every truck and review, that matters more than a cent a minute.
• Self-serve or sales. Twilio, Telnyx and Plivo let you sign up and buy a number today. Plivo offers $10 in free credit with no card. Bandwidth leads with "request a quote", and its rates exclude taxes and fees.
• What is included. Plivo includes audio streaming and recording, Telnyx charges $0.002 for recording with free storage, and Twilio charges for both recording and storage. Telnyx charges $0.10 each time its transfer command runs, which at 100 transfers is more than the inbound minutes.
• Texting registration. Every carrier has to register business texting from a local number (10DLC) with the US carriers. The fees are similar everywhere; the paperwork is the same work on any of them.

Which Twilio alternative should a small business pick?

Starting a new AI voice build: Telnyx or Plivo. Both are documented by the main voice platforms, both cost about half of Twilio per inbound minute, and Plivo's included streaming makes it the cheapest line for a custom agent. Our Telnyx pricing breakdown has Telnyx's full rate card, including its own $0.05-a-minute voice agent.

Already on Twilio and it works: stay, unless you are moving thousands of minutes. At 400 calls a month the saving is under $10.

You do not want to build at all: a carrier API is the wrong tool. A business phone app with a built-in AI agent, such as Quo (formerly OpenPhone), prices per user and per AI call instead of per minute; our OpenPhone pricing page runs the numbers for a 4-person office.

High volume or regulated: Bandwidth and Sinch run their own networks and sell through sales teams. Get a quote at your real minutes before comparing.

Who can build an AI phone system on Twilio, Telnyx or Plivo for my business?

A developer who knows one carrier can get a number answering in a day. The longer work is the rest: the agent's script and tools, transfers that reach the right person, texts that clear 10DLC, and writing every call into the CRM or job system your team uses. SuperDupr, the AI ops shop Justin McKelvey runs, builds AI voice agents for service businesses on these carriers. Our published price for a voice agent build is $5,000 to $10,000, with $200 to $2,000 a month ongoing depending on volume, and most AI builds go live in 2 to 4 weeks. The carrier account and number are opened in your business's name, so usage is billed at the carrier's own rates; we do not resell any of them. The first step is a free 30-minute strategy session, booked from that page.

Sources

• Twilio Voice pricing, United States, twilio.com/en-us/voice/pricing/us, and Twilio SMS pricing, United States, twilio.com/en-us/sms/pricing/us, read October 25, 2026: $1.15 local number, $0.0085 inbound and $0.014 outbound per minute, recording $0.0025 + $0.0005 storage, Media Streams $0.0044, $0.0083 per SMS segment.
• Plivo Voice pricing, United States, plivo.com/voice/pricing/us, and Plivo SMS pricing, plivo.com/sms/pricing/us, read October 25, 2026: $0.0115 outbound and $0.0055 inbound local, $0.50 local number, recording $0, storage free 90 days then $0.0004/min a month, audio streaming included, $0.0077 per SMS, carrier surcharge table, $10 free credit.
• Vonage Voice API pricing, vonage.com/communications-apis/voice/pricing, read October 25, 2026 (via a text renderer): domestic outbound from $0.00849, inbound from $0.00485, websocket call $0.00492 per minute; the numbers tab did not render.
• Bandwidth pricing, bandwidth.com/pricing, read October 25, 2026: local outbound $0.0100 and inbound $0.0055 per minute, 6-second increments, recording $0.0020, bidirectional media streaming $0.004, 10DLC SMS $0.004; "full product pricing available on request".
• Sinch Voice pricing, sinch.com/pricing/voice, read October 25, 2026 (via a text renderer; the rate table rendered as $0.00 placeholders): figures from Sinch's own FAQ examples, $0.80 number plus $0.80 setup, $0.008 inbound and $0.01 outbound per minute, $0.002 recording.
• Telnyx Voice API, SIP Trunking and Numbers pricing, telnyx.com, read October 23, 2026, as published in our Telnyx pricing breakdown.
• Vapi docs, docs.vapi.ai (phone number imports, SIP integrations, free Vapi numbers), and Retell pricing, retellai.com/pricing, read October 25, 2026.
• Worked bills: SuperDupr's arithmetic on the published rates above, for an assumed 400 calls of 3 minutes each.