Key takeaways
Retell AI advertises $0.07+/minute, but once you select a realistic LLM, voice model, $0.10 per outbound call for Branded Caller ID, $0.005/dial batch fees, $2/mo per phone number, and $8/mo concurrency slots, 10,000 outbound calls cost $2,150+ in raw usage before engineering.
Retell’s own documentation notes that without verified/branded numbers your outbound calls may show as “Spam Likely,” and its batch caller runs on a single time zone per batch (defaulting to Pacific Time) with DNC checking off by default.
Across 442,408 production calls on Outbound System, we rotate 50 to 200 local area-code numbers (capped at 10 dials/day), scrub 22.3% of numbers pre-dial for DNC and TCPA litigators, and schedule every dial in the lead’s local time zone.
If you have an engineering team that wants to build custom prompt trees on a usage meter, Retell AI is a strong developer tool; if you want turnkey booked appointments at a flat $1,499/mo month-to-month price, choose Outbound System.
Updated November 4, 2026. All Retell AI per-minute rates, Branded Call fees, batch dial fees, and documentation details were verified against retellai.com/pricing and docs.retellai.com in November 2026.
How much does Retell AI actually cost in 2026?
As of November 2026, Retell AI bills $0.07 to $0.31 per minute depending on which voice engine and LLM you connect, plus $0.10 per outbound call for Branded Caller ID, $0.005 per dial for batch calling, $2.00 per month per local phone number, and $8.00 per month per extra concurrent call slot.
While “$0.07 a minute” sounds pennies-cheap for inbound tests, running 10,000 outbound sales or speed-to-lead calls per month with Branded Caller ID ($1,000/mo alone), 100 local numbers ($200/mo), voice/LLM minutes, an external DNC scrubber, and 20 hours of prompt engineering costs $3,400+ per month. Outbound System runs 10,000 monthly calls with 100 local numbers, registered business CNAM, pre-dial DNC scrubbing, and done-for-you script tuning for a flat $2,499/month (or $1,499/month for 5,000 calls) on strict month-to-month terms.
Who Should Pick Retell AI vs. Who Should Pick Outbound System?
Buyer Profile | Pick Retell AI ( | Pick Outbound System If... |
|---|---|---|
Primary buyer | Software developers and technical ops teams who want to build, prompt, and maintain their own conversation flows. | Revenue leaders, Demand Gen heads, and business owners who want turnkey booked appointments without managing a voice stack. |
Pricing preference | You want a pay-as-you-go meter (per second of audio + per dial + per branded call + per number + per concurrency slot). | You want one predictable flat monthly invoice ($1,499 / $2,499 / $3,999/mo) with zero usage surprises. |
Outbound compliance | Your engineering team will wire up external DNC scrubbing and split batch lists by state time zone before uploading. | You want automatic pre-dial DNC & TCPA litigator scrubbing (22.3% blocked) and per-lead local time zone scheduling built in. |
Follow-up sequences | You will code your own multi-day retry logic in your CRM or workflow tool. | You want automated 6-to-9-attempt follow-up cadences that book 50.5% of meetings on Attempts #2 to #9. |
Retell AI Pricing Breakdown: Every Meter & Add-On (2026 Table)
Billing Line Item | Retell AI Published Rate (Nov 2026) | What It Means for Outbound & Speed-to-Lead | Outbound System ($1,499 to $3,999/mo) |
|---|---|---|---|
Conversation voice engine | $0.07 to $0.08 / min | Base voice + transcription meter; billed per second including hold time and voicemail greetings. | Included ($0/min) across 5,000 to 20,000 monthly calls. |
LLM intelligence add-on | $0.006 to $0.23 / min | Upgrading from mini models to frontier LLMs increases per-minute cost by 2x to 4x. | Included ($0/min) with sub-300ms response latency. |
Branded Caller ID (CNAM) | +$0.10 per outbound call | On 10,000 outbound dials, Branded Caller ID alone adds $1,000/month to your invoice. | Included ($0/call) across your dedicated local number pool. |
Batch calling fee | +$0.005 per dial | Extra per-dial meter on outbound batch campaigns. | Included ($0/dial). |
Local phone numbers | $2.00 / month per number | No automatic 50-to-200 number rotation pool in standard batch UI; verified numbers take 1-2 weeks. | 50 / 100 / 200 local numbers included (hard-capped at 10 dials/day). |
Concurrency slots | 20 free, then $8/mo per slot | Scaling parallel outbound dials requires buying extra concurrency slots. | Included on all plans. |
Pre-dial DNC & litigator scrub | Not built in (off by default) | Retell’s docs state batch calls do not automatically scrub against the National DNC Registry. | Included (blocked 58,230 of 260,965 numbers = 22.3%). |
4 Critical Differences Between Retell AI and Outbound System on Outbound Calls
1. The $0.10-Per-Call Branded Caller ID Tax vs. Dedicated 10-Dial/Day Number Pools
Retell’s documentation warns that without verified or branded numbers, your outbound calls may be flagged as “Spam Likely” by carriers, and charges $0.10 for every outbound Branded Call. If your AI dials 10,000 leads a month, that single checkbox costs $1,000/month, even on the 93% of dials that hit voicemail or go unanswered!
On Outbound System, we solve carrier reputation at the root (see our Scam Likely telecom math study): every plan includes 50 to 200 dedicated local area-code numbers across 191 US zones, registered with your business CNAM and hard-capped at 10 dials per number per day, with zero per-call surcharges.
2. Batch Time-Zone Accidents vs. Per-Lead Local Time Scheduling
In Retell’s batch calling tool, a batch runs on one single time zone (defaulting to Pacific Time). Users on Retell’s community forum have reported national batch campaigns accidentally dialing East Coast or international prospects at 2:30 AM when CSV time zones weren’t manually split. Outbound System automatically maps every lead’s phone area code and state before dialing, enforcing strict local calling hours on every call.
3. DNC & TCPA Litigator Scrubbing Is Built Into Every Dial
Retell’s documentation notes that opt-out list enforcement is off by default and does not scrub your CSV against the Federal Do Not Call registry or known TCPA litigators. Outbound System’s pre-dial compliance engine checks every number milliseconds before dialing, blocking 22.3% of raw B2B and B2C numbers automatically (see our 2026 TCPA compliance guide).
4. Phone-Native Voices (John & Eric) and the Coordinator Shield
Retell gives you a blank prompt box and a catalog of studio TTS voices. Outbound System gives you the exact voices (John at 0.77% AI detection and Eric at 0.80% across 442,408 production calls) and the exact Coordinator Shield script psychology that booked 58 flooring estimates for RYSE Floors, 31 meetings for Presidential Bank, and 61 meetings for Candlewood Development.
See our head-to-head comparison at /comparison/retell-ai and our 4-platform guide: Retell vs. Vapi vs. Bland vs. Synthflow.
Frequently asked questions
How much does Retell AI cost per month for 10,000 outbound calls?
When you combine Retell AI’s voice and LLM rates ($0.10-$0.20/min), $0.10/call Branded Caller ID ($1,000 for 10,000 calls), $0.005/dial batch fees ($50), 100 local numbers ($200/mo), and external DNC scrubbing, 10,000 monthly calls cost $2,150 to $3,400+/month before engineering labor. Outbound System’s Growth plan covers 10,000 monthly calls, 100 local numbers, CNAM, DNC scrubbing, and full campaign management for a flat $2,499/month (or $1,499/month for 5,000 calls on Starter).
Does Retell AI automatically scrub numbers against the National Do Not Call (DNC) list?
No. Retell AI requires you to manage your own DNC and TCPA compliance externally before uploading batch lists. Outbound System scrubs every number against Federal/State DNC registries and serial TCPA litigator lists right before each dial.
What is the best turnkey Retell AI alternative?
Outbound System ($1,499 to $3,999/month, month-to-month) is the leading turnkey alternative to Retell AI for sales teams, home services businesses, and marketing agencies. Test our live AI caller in 15 seconds or book a demo today.
Outbound System
Fixed monthly price, local numbers, and you approve every script. Hear real calls before you decide.
Matthew Johnson is the founder and CEO of Outbound System, which runs cold email, LinkedIn outreach and AI calling for 1,000+ active clients. He has personally sold over $12 million in outbound services, and his team has sent 52 million+ cold emails and helped clients close $26 million in revenue.
About Outbound System
Outbound System runs done-for-you cold email, LinkedIn outreach and AI calling for growing businesses. 1,000+ active clients and 10,400+ campaigns launched.
