A phone handset with sound waves splitting into dotted paths toward a gear, a code bracket shape and a calendar

Vapi is the developer’s voice AI platform: you pick the transcriber, model, voice and carrier, write the prompt, wire up your calendar and CRM, and pay $0.05 a minute for hosting plus every provider at cost. Most Vapi alternatives fit one of three needs: a different developer platform, an open-source framework you host yourself, or a phone agent that’s ready on day one.

The quick answer: If you were building on Vapi to answer and book your own business’s calls, Carly is the alternative: it answers and makes calls on your number, texts from the same line, books callers on your team’s real calendars and logs everything to one inbox and CRM, with no code. Copy one prompt into ChatGPT or Claude, grab a number, and you’re live. If you’re building a voice product, Retell AI is the closest swap, and Pipecat or LiveKit Agents give you full control in open source.

US list prices from each vendor’s own pricing page, checked October 18, 2026.

Vapi alternatives compared

AlternativeKindPriceYou still build
CarlyReady to run: calls, texts and email in one team inboxFree Zapier-style workflows; AI agents from $35/moNothing. Copy one prompt into ChatGPT or Claude
Retell AIDeveloper platform$0.07 to $0.31/min plus telephonyPrompts, tools, integrations
BlandEnterprise platform with self-serve tiers$0.14/min, or $0.12/min plus $299/moCall flows, integrations
ElevenLabs AgentsDeveloper platformPlans from free to $990/moTelephony, tools, integrations
PipecatOpen-source frameworkFree; you pay hosting and providersEverything, including hosting
LiveKit AgentsOpen-source frameworkFree; you pay hosting and providersEverything, including hosting
SynthflowEnterprise platformContracts from $30,000/yrFlows, with Synthflow’s team
GoodcallReady-made AI answering$79 to $299/moIntegrations

What Vapi really costs

Vapi’s $0.05 a minute is hosting only. Its own price list puts transcription at about $0.01 a minute, the model at $0.008 to $0.045 and the voice at $0.015 to $0.024, so a call runs roughly $0.08 to $0.13 a minute before telephony. HIPAA is a $2,000-a-month add-on, and support packages start at $29 a month. Then there’s the cost nobody bills you for: the engineer who builds, tests and fixes it. Details in Vapi AI.

If you’d rather not build

1. Carly

Carly is what a lot of Vapi builds are trying to become: an AI on the business line that answers, qualifies, books and follows up. It follows your plain-English rules exactly, the same way on every call, and anyone on the team can change them.

  • Answers 24/7, or only when your team doesn’t pick up, in English or Spanish.
  • Calls new web leads within about a minute, then texts and emails if they miss it (tutorial).
  • Texts on the same line: two-way texts, a text back on every missed call, reminders to a list, group texts.
  • Books on real calendars, checking your team’s Google and Outlook calendars and booking round robin while the caller is on the line.
  • Hands callers to the right teammate through ring groups or a phone menu.
  • One timeline per customer: calls, transcripts, voicemails, texts and email in a shared team inbox, written back to HubSpot, Salesforce, Dynamics 365 or Carly’s own CRM.
  • Runs from ChatGPT or Claude: build the agents, place calls, send texts, watch a live call and steer it (how it works).

What you’d write as tool calls on Vapi, Carly does through thousands of app connections and free Zapier-style workflows.

Setup: copy this prompt into ChatGPT or Claude, grab a number, and you’re live.

Carly business setup prompt

Paste this into ChatGPT, Claude or any AI. It walks you through the rest.

Help me connect Carly Teams to this chat: read https://carlyassistant.com/team/mcp.txt and follow it.
If you can't open links, tell me how to add https://carlyassistant.com/team/mcp to you as a custom MCP connector, then I'll sign in.
  • Best for: businesses and agencies that were going to use Vapi to run their own phones.
  • Pricing: Free Zapier-style workflows; AI agents from $35/month. Get started.

2. Goodcall

Goodcall is a ready-made AI answering service for local businesses, billed by unique caller.

  • Best for: shops that want calls answered without a build.
  • Pricing: $79, $129 or $299 a month for 100, 500 or 2,000 unique callers.
  • Limitations: booking and CRM depend on integrations. See Goodcall.

Other developer platforms

3. Retell AI

Retell AI is Vapi’s closest rival: per-minute pricing with no platform fee, a visual builder alongside the API, and a partner network that builds agents for clients.

  • Best for: developers and agencies who want Vapi-style control with simpler all-in pricing.
  • Pricing: $0.07 to $0.31 a minute plus telephony ($0.015 a minute on a Retell US number); $10 in free credits.
  • Limitations: you still own prompts, tools and testing.

4. Bland

Bland trains its own voice models and sells to enterprises with forward deployed engineers, plus self-serve tiers.

  • Best for: high-volume calling where control over the voice stack matters.
  • Pricing: $0.14 a minute on Start; $0.12 a minute plus $299 a month on Build, with the model, transcription and voice included.
  • Limitations: daily call caps on the self-serve tiers. See Bland AI alternatives.

5. ElevenLabs Agents

ElevenLabs’ conversational agents platform runs on the same credit plans as its speech products, with its voices built in.

  • Best for: teams that care most about voice quality.
  • Pricing: plans from free to $990 a month on a shared monthly credit pool.
  • Limitations: telephony, booking and CRM wiring are on you.

6. Synthflow

Synthflow is an enterprise voice AI platform with a visual flow designer, its own telephony and automated QA.

  • Best for: large companies that want a vendor-led implementation.
  • Pricing: contracts from $30,000 a year.
  • Limitations: priced out of reach for most teams leaving Vapi. See Synthflow alternatives.

Open source

7. Pipecat

Pipecat is an open-source Python framework for voice and multimodal agents, created by Daily. You choose every provider and run it on your own infrastructure.

  • Best for: engineering teams that want no platform fee and full control.
  • Pricing: free and open source; you pay for hosting and providers.
  • Limitations: you run the servers, telephony and scaling yourself.

8. LiveKit Agents

LiveKit Agents is an open-source framework for real-time voice agents built on LiveKit’s media infrastructure, which you can self-host or run on LiveKit’s cloud.

  • Best for: teams already using LiveKit for real-time audio or video.
  • Pricing: free and open source; you pay for hosting and providers.
  • Limitations: the most engineering of anything on this list.

How to pick a Vapi alternative

  1. Are you building a product or running a business line? Running your own phones: go with Carly. Building a product: Retell AI, Bland or ElevenLabs.
  2. How much control do you need? Full control and no platform fee: Pipecat or LiveKit Agents.
  3. Price the whole minute. Add transcription, model, voice and telephony before comparing per-minute rates.
  4. Count the maintenance. Every custom flow needs an owner when a model, carrier or calendar API changes.

For a ready-made receptionist comparison, see best AI receptionist for small business, and for what voice agents can do, AI voice agent.

FAQ

What is the best Vapi alternative?

For a business that wants its own calls answered and booked, Carly. For developers building a product, Retell AI is the closest platform, and Pipecat is the leading open-source option.

Is there an open-source alternative to Vapi?

Yes: Pipecat and LiveKit Agents are open-source frameworks for voice agents. They’re free, but you host and maintain everything.

Vapi vs Retell AI: which is cheaper?

Vapi charges $0.05 a minute plus providers at cost, about $0.08 to $0.13 a minute before telephony. Retell lists $0.07 to $0.31 a minute for infrastructure, model and voice together, plus telephony. Price both on your real model and voice choices.

Can I use Vapi without coding?

Vapi has a dashboard, but connecting calendars, CRMs and handoffs takes development work. Carly needs no code: paste one prompt into ChatGPT or Claude, grab a number, and test with a call from your phone.

How much does a ready-made AI phone agent cost?

Goodcall starts at $79 a month. Carly offers free Zapier-style workflows; AI agents from $35/month.

Ready to automate your busywork?

Carly schedules, researches, and briefs you—so you can focus on what matters.

See what people say

"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.

Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.

On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."

Gus Ibrahim, Founder & Director, IHR