Comparison
Grepiv vs Retell AI
Retell AI is a developer platform for building voice and chat agents, billed per minute. Grepiv is the finished desk: agents, outbound rules, SMS and WhatsApp, leads, pipelines and bookings, configured without writing code.
Facts checked October 28, 2026. We make Grepiv; every claim about another product links to that vendor’s own site.
The short answer
Choose Retell AI if you have developers and want to build a custom voice agent at a low per-minute cost. Choose Grepiv if you want the receptionist, the outbound caller and the lead desk already built, and only need to write the script.
What Retell AI is
A developer platform to build, deploy and manage AI voice and chat agents, with a visual canvas, APIs and SDKs. Aimed at developers, startups, mid-market and enterprise teams.
What Grepiv is
An AI communications platform: a voice agent on each of your lines, outbound AI calling, and two-way SMS and WhatsApp on the same numbers, with leads, pipelines and bookings in one dashboard.
Side by side
Grepiv vs Retell AI
| Grepiv | Retell AI | |
|---|---|---|
| Pricing | Quoted per account after a demo, based on call volume, numbers and integrations. No public price list. | Pay as you go: $0.07–$0.31 per minute depending on the model and voice, plus $0.015/minute telephony and $2/month per number. SMS $0.01 per message. |
| Trial | No self-serve trial. The demo runs on a real line. | $10 of free credit at sign-up. |
| Human receptionists | No. AI only, with live transfer to your own team. | No. |
| AI answers inbound calls | Yes. One agent per number, each with its own script, voice and language. | Yes, once you build the agent. |
| AI outbound calls | Yes, including an automatic call to a new lead the moment it arrives, with lead sources you exclude never dialled. | Yes, including batch calls. |
| SMS | Yes. Two-way AI SMS on the same numbers that take the calls. | Yes. |
| Yes, plain-text WhatsApp on your numbers. | Not stated. | |
| Appointment booking | Yes, inside your working hours, with round-robin assignment. The voice agent can also reschedule or cancel. | Yes. |
| Transfer to a person | Yes, on trigger phrases you set, with an announcement and retries. | Not stated on the pages we checked. |
| CRM integration | Any CRM over HTTP webhooks: a lookup before the call, tools during it, workflows after it. No packaged connectors such as Clio or HubSpot. | HubSpot, GoHighLevel, Make and n8n, plus APIs. |
| Your phone number | Runs on Twilio. Keep the number you advertise by porting it to your own Twilio account; the numbers stay yours. | Bring your own numbers over SIP, with guides for Twilio, Telnyx and Vonage. |
| Setup | No code. Script, fields to capture and rules are set in the dashboard; the CRM handoff needs an endpoint on your side. | You build the agent on a visual canvas or through APIs and SDKs. |
Choose Retell AI if
- You have developers and want full control of the agent's logic
- You are building voice AI into your own product
- You want transparent per-minute pricing at scale
Choose Grepiv if
- You want a working receptionist and outbound caller without building one
- You need leads, pipelines, appointments and SMS threads, not only the voice agent
- Your team is a law firm, agency or desk, not a software team
Questions
Grepiv vs Retell AI, asked.
01
Is Retell AI an AI receptionist?
Retell AI is a platform for building one. It provides the voice agent, telephony and APIs; you design the agent and connect it to your systems.
02
Do I need a developer to use Grepiv?
No. Scripts, voices, capture fields, transfer rules and outbound configs are set in the dashboard. Connecting your CRM uses webhooks, which need an HTTP endpoint on your side.
03
Can both use my existing phone numbers?
Yes. Retell AI connects your own numbers over SIP. Grepiv runs on Twilio: port the number you advertise to your own Twilio account and Grepiv answers on it.
Sources
Where these facts come from.
Vendors change plans often. Each was read on October 28, 2026; if something here is out of date, tell us at [email protected] and we will correct it.
Keep comparing