10 best AI cold-calling agents for outbound sales in 2026

8 October 2026 · 14 min read · Competitor facts checked 8 October 2026

Summary

The best AI cold-calling agent depends on one question first: do you want software to build with, or calls made for you? Developer platforms are cheap per minute but you build, tune and run everything. Done-for-you services cost more up front but hand you conversations. We compared 10 tools on what actually matters for outbound sales.

01VocalMax – best done-for-you outbound calling for UK and UAE sales teams
02Retell AI – best self-serve platform if someone on your team can build and tune agents
03Bland AI – best for engineering teams running high-volume, tightly scripted calls
04Vapi – best for developers who want to choose every part of the voice stack
05Synthflow AI – best no-code platform for mid-market and enterprise budgets
06CloudTalk – best if you want a full cloud phone system with an AI agent add-on
07Thoughtly – best for calling inbound and opted-in leads back within seconds
08Regal – best for large consumer contact centres calling consented leads
09TopCalls – best for a managed programme at one flat per-minute price
1011x (Julian) – best for funded B2B teams with heavy inbound demand

Full disclosure: we make VocalMax. We’ve put ourselves first in the one category we were built for, and every other tool gets the category it genuinely wins. Every price and rating below links to its source, so you can check us.

Comparison table

Usage-based platforms (Retell AI, Vapi, Bland AI) stack per-minute charges for the voice engine, the language model, the voice and the phone line, so treat their starting price as a floor, not your real cost.

Tool	Best for	Who does the work	Mainly	Starting price	Reviews
VocalMax	Done-for-you outbound, UK & UAE	We build and run it	Outbound	Setup from £2,000, then 18–25p a minute of conversation	Too new for G2; case study below
Retell AI	Self-serve builders	You build it (no-code or API)	Both	$0.07–0.31/min, pay as you go	G2 4.8 (2,639) · Trustpilot 4.9 (810)
Bland AI	Engineering-led volume	Your developers	Both	$0.14/min, phone line extra	G2 5.0 (11, small sample)
Vapi	Developers	Your developers	Both	$0.05/min platform + providers at cost	G2 4.2 (3) · Trustpilot 2.4 (15)
Synthflow AI	Mid-market, enterprise	You, with their onboarding	Both	Contracts from $30,000 a year	G2 4.5 (1,015) · Trustpilot 4.1 (215)
CloudTalk	Phone system + AI	You (no-code)	Both	€99 for 200 AI minutes + phone seat	G2 4.4 (≈1,850, whole platform)
Thoughtly	Instant lead follow-up	You (no-code)	Inbound follow-up	Quote only	Small sample
Regal	Large B2C contact centres	Regal-led rollout	Outbound to consented leads	Quote only (25+ agents, 100k+ min/month)	G2 4.7 (44)
TopCalls	Managed programme	They run it	Outbound	$0.35/min of talk time, all in	No public reviews found
11x (Julian)	Funded B2B, inbound demand	Their onboarding	Inbound + consented outbound	From $5,333/month, billed yearly	G2 4.4 (33, mostly another product)

How we compared them

We judged each tool on what decides whether an AI agent works for outbound sales, not on how good its demo is:

Who does the work. Do you get a working agent calling your leads, or building blocks your team has to assemble and maintain?
Built for outbound. Campaigns, retries, calling hours per lead, voicemail detection and do-not-call handling, or mainly answering inbound calls?
Qualification and booking. Does it actually qualify and move a lead forward, and does the outcome reach your CRM or inbox?
Real pricing. Is the full cost published, and what is left out of the headline rate?
Reviews. Ratings on G2 and Trustpilot, and whether there are enough reviews to mean anything.

Sources: each vendor’s own pricing pages and documentation, plus G2 and Trustpilot, all checked on 8 October 2026. Where vendors contradict themselves, we use the pricing page and say so. Compliance claims are the vendors’ own.

Left out: Air.ai. It used to top lists like this one. In March 2026 the US Federal Trade Commission announced an $18 million settlement with the company and its owners over deceptive earnings claims, its Trustpilot rating is 1.2 from 83 reviews, and the air.ai address now belongs to a different company. It is no longer a product you can buy.

Which one is right for you?

You want booked conversations, not a project: VocalMax, or TopCalls if you prefer a flat per-minute price.
You have someone technical and want to build it yourself: Retell AI for the easiest start; Vapi or Bland AI for full control.
You already want a new phone system: CloudTalk.
Your leads fill in forms and need calling back fast: Thoughtly or 11x.
You run a large contact centre: Regal or Synthflow.

1. VocalMax: best done-for-you outbound calling

VocalMax is an AI calling service built by salespeople for sales teams. We read your lead list, build an agent around your sales process, run the campaigns on our own calling engine and hand you the leads worth calling back. Nothing to build, host or tune yourself.

Best for: SMBs and sales teams in the UK and UAE that want booked conversations without building anything
Pricing: Setup from £2,000 (enterprise £10,000–20,000), then minutes from 25p down to 18p on larger packs. Unanswered calls are not charged.
Needs engineering: No. We build and run the agent with you
Mainly: Outbound
Reviews: Too new for G2. See the customer results below

Key features

Done for you: the agent is built from your lead list and your sales process, and every conversation is reviewed by our AI Sales Manager so we can keep improving it.
Calling done properly: each lead is called within its own local calling hours, voicemail is detected, retries and promised callbacks are handled automatically, and anyone who asks to be removed goes straight onto the do-not-call list.
Only the leads that matter: every call is transcribed and sorted (interested, callback, not interested), and hot leads land in your inbox, your CRM and your email.

Customer results

A UK property investment company ran three campaigns with VocalMax between April and June 2026, each to a list of about 1,000 investors: 3,397 calls, 1,236 conversations (36%), and 166 warm leads (85 interested, 81 asked for a callback). Each list of roughly 1,100 calls was worked in about two hours, and only 1.5% of people asked not to be called again.

Pros

No build, no prompt tuning, no telephony to manage
Outbound campaign controls built in: calling hours, retries, callbacks, do-not-call
You pay for conversations, not ringing

Cons

Not a do-it-yourself builder: developers who want full control should look at Retell AI or Vapi
Fewer native integrations than the big dialers today (ClickUp, webhooks and an API)
English-first today, and booking straight into your calendar during the call is not live yet

2. Retell AI: best self-serve platform

Retell AI is a voice agent platform with a no-code flow builder and full APIs. It is the quickest way to launch your own outbound campaign if someone on your team can build and tune the agent.

Pricing: $0.07–0.31 a minute pay as you go (voice engine $0.055, plus voice, model and phone line). 20 concurrent calls free, then $8 per line a month. $10 free credit.
Needs engineering: Low to moderate. No-code builder, but reviewers say tuning takes effort
Mainly: Inbound and outbound, with batch calling
Reviews: G2 4.8 from 2,639 · Trustpilot 4.9 from 810

Batch calls from a CSV with scheduling, pacing and retries (+$0.005 a dial).
Voicemail handling and warm transfer to a human.
Appointment booking and CRM write-back; SOC 2 Type II, HIPAA and GDPR (vendor claim).

Pros

Easy to use for a technical team
Human-sounding voices and low delay
Transparent, itemised pricing

Cons

Costs add up at volume
Prompt tuning and learning curve
You still build, test and run every campaign yourself

3. Bland AI: best for engineering-led volume

Bland AI is an API-first voice platform aimed at enterprises and regulated industries, with “Pathways” for tightly controlled conversation flows.

Pricing: Start: $0.14 a minute, no platform fee, 10 concurrent calls, 100 calls a day. Build: $299 a month + $0.12 a minute. The phone line is billed separately.
Needs engineering: Yes
Mainly: Inbound and outbound
Reviews: G2 5.0 from 11 (too few to judge)

Batch calling through the API, with configurable voicemail handling and retries.
Transfers to numbers or departments; 40+ languages.
SOC 2 Type II, HIPAA with a BAA on Enterprise, self-hosting available (vendor claim).

Pros

Fine control over scripted flows
Volume pricing and self-hosting options
Strong enterprise security story

Cons

Needs developers to build and maintain
Phone line charged on top of the per-minute rate
Too few public reviews to compare fairly

4. Vapi: best for developers

Vapi is “voice agents for builders”: you pick the speech recognition, language model, voice and carrier, and Vapi runs the pipeline between them.

Pricing: $0.05 a minute platform fee, plus providers at cost. Vapi’s own estimate: $82–129 per 1,000 minutes. Core plan $29 a month for 10 concurrent calls.
Needs engineering: Yes, effectively developer-only
Mainly: Inbound and outbound
Reviews: G2 4.2 from 3 · Trustpilot 2.4 from 15

Bring your own models and carriers, with per-component billing.
Outbound campaigns with built-in voicemail detection.
Integrations including Salesforce, HubSpot and Google Calendar; HIPAA as a $2,000-a-month add-on.

Pros

Maximum flexibility
Low platform fee
Good for agencies building many agents

Cons

Real cost hidden in provider pass-through
Hard going for non-developers
Mixed reviews on support and stability

5. Synthflow AI: best no-code platform for bigger budgets

Synthflow builds “enterprise-ready voice AI agents” with a visual no-code designer, sold with implementation support.

Pricing: Enterprise contracts from $30,000 a year. Older $29-a-month plans are no longer offered to new customers.
Needs engineering: No
Mainly: Inbound and outbound
Reviews: G2 4.5 from 1,015 · Trustpilot 4.1 from 215

Visual flow designer with templates, voicemail detection and calendar booking.
HubSpot, Salesforce and GoHighLevel integrations; transfer to a human.
SOC 2, HIPAA, PCI DSS and GDPR (vendor claim).

Pros

Genuinely no-code
Quick setup and easy integrations
Large review base

Cons

Expensive: the most common complaint in reviews
No longer suits small teams
Learning curve for advanced flows

6. CloudTalk: best phone system with an AI add-on

CloudTalk is a cloud phone system for sales teams. Its AI voice agent, CeTe, is an add-on that calls lead lists and books meetings alongside its power dialer.

Pricing: AI agent from €99 for 200 minutes a month, on top of a phone seat (€19–49 per user a month, billed yearly). 14-day trial with 50 AI minutes.
Needs engineering: No
Mainly: Inbound and outbound
Reviews: Trustpilot 4.2 from 855 · G2 4.4 (whole phone platform, not the AI agent)

Calls new leads within seconds and books into Google or Outlook calendars.
100+ integrations including Salesforce, HubSpot and Pipedrive.
Warm transfer to a human rep with context.

Pros

Phone system, dialer and AI agent in one place
Deep CRM integrations
Free trial

Cons

AI agent is a paid add-on on top of seats
Its own pages disagree on AI pricing and languages
Reviews mention slow support and billing disputes

7. Thoughtly: best for instant lead follow-up

Thoughtly calls inbound form leads back within seconds and follows up by text. It is built for speed to lead rather than cold lists.

Pricing: Quote only; every tier lists unlimited voice minutes.
Needs engineering: No
Mainly: Inbound and opted-in follow-up
Reviews: Small sample on G2 and Trustpilot

Instant callback on new leads with SMS fallback, meeting booking and CRM write-back.
34 languages; answering-machine detection.
Consent tracking and do-not-call tooling, with a TCPA review on higher tiers (vendor claim).

Pros

Natural voices
Strong consent and do-not-call tooling
Saves staff time on first contact

Cons

No public prices
Not designed for cold lists
Advanced setup can be confusing

8. Regal: best for large consumer contact centres

Regal helps big consumer brands build and manage AI agents for high-volume calling to people who have given consent, in insurance, lending, healthcare and education.

Pricing: Quote only; aimed at teams with at least 25 agents and 100,000 minutes a month.
Needs engineering: No; Regal leads the rollout
Mainly: Outbound to consented leads
Reviews: G2 4.7 from 44

The AI joins only once a person answers; voicemail is detected and a message can be left.
Consent, opt-out and calling-hours controls per channel.
40+ integrations built by Regal’s engineers; 30+ languages.

Pros

Serious consent and suppression controls
Built for volume
Well-rated support

Cons

Enterprise minimums rule out smaller teams
No public prices
Reporting called thin by some reviewers

9. TopCalls: best flat per-minute managed calling

TopCalls runs outbound calling for you: you supply the list and script, they run the calls, at one flat rate.

Pricing: $0.35 a minute of talk time, covering voice, phone line, recording and transcripts. No seat or setup fees.
Needs engineering: No
Mainly: Outbound
Reviews: No G2 or Trustpilot reviews found

Managed campaigns that respect time zones and dialling hours, with retries.
Calendar booking and warm transfer to your reps.
First calls live in about two weeks (vendor claim).

Pros

Simple, all-in pricing
Managed: little work for your team
Outbound-first

Cons

No public reviews yet
Higher per-minute rate than self-serve tools
Little published detail on compliance

10. 11x (Julian): best for funded B2B teams with inbound demand

Julian is 11x’s AI phone agent. It calls inbound leads back in under a minute, qualifies them and books meetings. 11x sells cold outbound prospecting as a separate product.

Pricing: From $5,333 a month for 2,000 calls, billed yearly. No setup fee.
Needs engineering: No; 2–4 weeks of guided onboarding
Mainly: Inbound and consented outbound
Reviews: Trustpilot 4.3 from 38 · G2 4.4 from 33, mostly about another 11x product

Calls new leads in under 60 seconds and qualifies them against your ideal customer.
Two-way Salesforce and HubSpot sync; SMS and WhatsApp follow-up.
10 languages and 10 concurrent calls on the Pro tier.

Pros

Fast inbound follow-up
Polished onboarding
Multi-channel follow-up included

Cons

High minimum spend with yearly contracts
Not for cold lists
Reviewers report heavy prompting and monitoring

Questions buyers ask

What does an AI cold-calling agent really cost?

Self-serve platforms start at $0.05–0.14 a minute, but once you add the voice, the language model and the phone line most teams pay roughly $0.08–0.30 a minute, plus the time to build and run it. Managed services charge more per minute or up front, and include that work.

Do I need a developer?

For Vapi and Bland AI, yes. Retell AI, Synthflow and CloudTalk are usable without code but still need someone to build and tune the agent. VocalMax, TopCalls, Regal and 11x do the build for you.

Can an AI agent cold call as well as a person?

It won’t replace your closers, but it can work a whole list in hours, never forgets a callback and hands your team only the conversations worth having. The quickest way to judge is to hear one yourself.

Hear it for yourself: our AI calls you in seconds.

Get a call from our AI

Competitor prices, features and ratings were taken from each vendor’s own website, G2 and Trustpilot on 8 October 2026 and may have changed since. Compliance statements are the vendors’ own claims. VocalMax customer figures are from our call records; the customer is anonymised.