CallLoop posts per-minute voice rates, ships a drag-and-drop campaign builder your sales rep can drive without shipping TypeScript, runs on the same carrier-grade voice stack Vapi does, and welcomes SMBs on month-to-month terms. Vapi is the YC W23 favorite of engineering teams — voice credits at $0.05/min, concurrency at $0.10/min, separate STT/LLM/TTS metering — and the iteration loop lives in a TypeScript/React SDK, not a UI.
Vapi splits the bill across voice credits ($0.05/min), concurrency ($0.10/min), STT, LLM, and TTS meters — and indie devs hit the $0.05/min minimums trap before they ship a second script revision. CallLoop publishes one rate on this page.
| CallLoop Transparent rates | Vapi AI Credit-based tiers | |
|---|---|---|
| Per-minute voice rate | $0.13 / min | Credit-based tiers |
| Monthly platform fee | $149 / moflat — all-in | Credit-based tiers |
| Setup & onboarding | Included — live in <24h | Bring-your-own-stack onboarding |
| Contract terms | Month-to-month | Per-usage credits & monthly minimums |
| ICP fit | SMB-first — self-serve signup | Developer-first (TypeScript / React SDK) |
| Price visibility | Public — on this page | Credit-based tiers |
$0.13 per minute of voice, $149 a month flat. The number on this page is the number on your invoice. Vapi bills in credit tiers — $0.05/min voice, $0.10/min concurrency, and separate metering for STT, LLM, and TTS. Indie devs hit the per-minute minimums before they ship a second script revision and the bill becomes a guessing game.
CallLoop ships compliance tooling in the UI — you edit your script, you change the consent phrasing, you ship the revision this minute. Vapi ships a TypeScript and React SDK and expects you to ship every script change through a deploy window. If a sales rep needs to revise the opener before lunch, DIY beats a git push every time.
CallLoop ships a drag-and-drop campaign builder the sales rep can drive — upload the list, paste the script, point at the calendar, ship the drip this week. Vapi is a developer platform tuned for the engineer who wants to build a voice agent from primitives in TypeScript. Same carrier-grade voice, totally different buyer.
Either way you'll be on a real call with our team inside one business day. No SDR funnel, no "thanks for your interest."
30 minutes with a CallLoop engineer. We'll set up your first campaign live and show you the dashboard.
7-day trial, no card. We'll spin up a sandbox campaign on your real prospect list so you can compare voice quality and conversion side by side.
If your priority is transparent pricing, self-serve SMB-friendly onboarding, and owning the iteration loop on your scripts without shipping TypeScript, CallLoop is the better fit. Vapi is a strong developer platform — YC W23, the most-quoted voice-agent dev platform in the space — tuned for engineering teams who want to build a voice agent from primitives on top of their own stack. If you're a sales team shipping a campaign this week, CallLoop is positioned for you; if you're an engineer building a custom voice product, Vapi is genuinely excellent.
For sales teams that want to ship a campaign this week rather than deploy a TypeScript SDK, yes. CallLoop publishes its per-minute rate ($0.13/min) and monthly fee ($149/mo) on the website, ships a drag-and-drop campaign builder, and goes live in under 24 hours on month-to-month billing. You can trial the actual product with your own prospect list before committing — no developer onboarding, no credit-tier negotiation.
Yes — CallLoop ships a smaller surface area than Vapi's full developer platform, and we're direct about that. The relevant question for an outbound sales team isn't who's bigger. It's which platform serves your motion. CallLoop is SMB-first with transparent pricing, month-to-month billing, and a UI-driven iteration loop that ships script changes this minute. Vapi is developer-first with credit-based tiers and a TypeScript/React SDK that requires a deploy to change a line of script. If you want to ship a drip this week, the wedge is that we bill simpler and edit faster; if you want to build a custom voice product on primitives, Vapi has more surface area.
CallLoop charges $0.13 per minute of voice and $149/mo for the platform — both publicly listed on this page, one flat number. Vapi runs credit-based tiers: $0.05/min for voice, $0.10/min for concurrency, plus separate metering for STT, LLM, and TTS, and per-usage credits with monthly minimums. The trap indie devs hit is the $0.05/min minimums — iterating on a script burns credits faster than you'd expect, and the bill is split across four meters. Most buyers we've talked to find one published rate simpler than tracking four.
CallLoop agents go live in under 24 hours: upload your prospect list, paste your script, point at your calendar booking link. Vapi's onboarding typically runs longer — you'll wire the TypeScript/React SDK into your stack, configure assistants and tools, and ship through a deploy window. The speed difference is the most common reason teams switch — the Vapi build path is the right shape for a custom voice product, and is overkill for a sales team dialing their own list.
CallLoop ships compliance tooling in the UI: you own the configuration, the call recordings, the consent phrasing, the audit trail, and the script revision loop — all editable without shipping code. Vapi expects you to manage compliance posture through their SDK — tools, assistants, and configurations live in TypeScript that you ship to your own environment. If your script needs to move weekly, a UI-driven compliance loop beats an SDK deploy every time.
Yes. Your prospect lists, call scripts, and CRM hooks port over directly. Most teams run CallLoop in parallel for a week on a slice of their list, compare connect rates and demo bookings, then flip the rest of their volume over. There's no lock-in — CallLoop is month-to-month, and you don't need to maintain a TypeScript codebase to keep iteration cadence.