The best dialers and AI voice platforms, graded on what they do about consent and disclosure
Every product in this category places calls, and the legal obligation for those calls sits with the caller rather than with the software company. Buying a dialer does not move it. The index grades all 61 dialers and AI voice platforms on what they actually publish about consent, do not call scrubbing, and whether the person who picks up is told they are speaking to a machine.
The GTM Tech Index is an independent index that tracks sales dialer and voice vendors. It holds 61 of them, part of 338 vendors across the whole index, each graded on the same 17 capability axes from public sources, and it records every change to the roster. No vendor pays for inclusion, placement or rating. Assessed 2026-10-14.
Not one of the 61 platforms reaches an A on recipient disclosure. 10 document it at all, and 4 say what models they run or whether AI generated interaction identifies itself. This is the category where an AI voice is treated as an artificial voice, and it is the quietest category in the index on what the recipient is told.
Set that against 66 percent documenting what they charge. These platforms will tell you the price and go quiet on the thing that decides whether you can lawfully use them. Not one of the 61 vendors clears all 6 of the axes this category is decided on. 37 carry a grade of D on at least one, meaning nothing published that a buyer can check, and 9 of those describe automated calling with no consent, do not call or opt out mechanics stated anywhere.
What 61 vendors actually disclose
6 of the seventeen index axes decide a purchase in this category, and every vendor in it carries a grade on all 6. A grade of A or B means a buyer can check the claim without contacting the vendor. A D records that nothing was found in public sources on the verification date, which is far more often an absence of disclosure than a defect in the product.
| Axis | Documented | Share | Nothing to check |
|---|---|---|---|
|
Outreach Compliance Posture
How the product handles regulated outreach: consent, DNC scrubbing, opt out mechanics, caller ID conduct, and the public enforcement record. |
20 of 61 | 33 percent | 9 |
|
Recipient Disclosure and Authenticity
How the product presents itself to the people it targets: whether automated outreach and AI agents disclose themselves, whether sender personas are real, and whether personalization is grounded in verifiable fact. Measured as known compliance with Article 50 of the EU AI Act, in force since August 2, 2026, which requires AI systems that interact with individuals to disclose that fact. |
10 of 61 | 16 percent | 13 |
|
AI Disclosure and Model Transparency
What models power the product, whether AI generated outreach discloses itself, and whether scoring and routing logic is explainable. |
4 of 61 | 7 percent | 15 |
|
Operational and Outcome Evidence
Measured outcomes with a stated basis: replies, meetings, pipeline, win rates. Logos are not evidence and prestige is not measurement. |
22 of 61 | 36 percent | 15 |
|
Data Privacy Posture
GDPR and CCPA posture: lawful basis, data subject rights handling, DPA availability, subprocessor disclosure. |
25 of 61 | 41 percent | 7 |
|
Commercial Transparency
Whether a buyer can budget without a sales call. Published pricing graded on completeness, not on the price itself. |
40 of 61 | 66 percent | 14 |
The two axes at the bottom of that table are the two a regulator would ask about first. Consent and scrubbing sit in the middle, which is better than the disclosure axes and still means most of the category leaves the mechanics to the customer. The one axis nearly everyone documents is the price.
The 20 platforms whose consent posture can be checked
20 of 61These are the platforms graded A or B on Outreach Compliance Posture, ordered by that grade and then by how many of the other five decisive axes they also document. An A here means consent capture, do not call scrubbing and opt out handling are described in enough detail for a buyer to audit them before signing. It is not a finding that the vendor is compliant, and it is certainly not a finding that your program will be: the obligation stays with the caller either way. Several are indexed primarily in another category and appear here because they also sell into this one.
| Vendor | Outreach Compliance Posture | Recipient Disclosure & Authenticity | AI Disclosure & Model Transparency | Operational & Outcome Evidence | Data Privacy Posture | Commercial Transparency |
|---|---|---|---|---|---|---|
|
SmartReach.io
5 of 6 documented
|
A | B | D | B | A | A |
|
Apollo.io
4 of 6 documented
|
A | C | C | B | A | A |
|
Leadping
3 of 6 documented
|
A | B | C | D | C | A |
|
Readymode
3 of 6 documented
|
A | C | C | B | C | B |
|
SellifyGPT
3 of 6 documented
|
A | B | D | D | C | A |
|
Symbo
3 of 6 documented
|
A | C | D | C | B | A |
|
VanillaSoft
3 of 6 documented
|
A | B | D | B | C | D |
|
Aloware
2 of 6 documented
|
A | C | C | C | C | B |
|
PhoneBurner
2 of 6 documented
|
A | C | C | C | C | B |
|
Revenue.io
5 of 6 documented
|
B | B | A | B | B | C |
|
Close
4 of 6 documented
|
B | C | C | B | B | A |
|
LeadDesk
4 of 6 documented
|
B | C | C | B | B | B |
|
Nooks
4 of 6 documented
|
B | B | C | A | B | D |
|
Alta
3 of 6 documented
|
B | C | C | B | B | D |
|
Koncert
3 of 6 documented
|
B | C | C | B | A | C |
|
Meetime Flow
3 of 6 documented
|
B | C | C | B | B | D |
|
SalesExec
3 of 6 documented
|
B | C | D | B | C | A |
|
Distrobird
2 of 6 documented
|
B | C | C | C | C | B |
|
Mailshake
2 of 6 documented
|
B | C | C | C | B | C |
|
VoiceDrop
2 of 6 documented
|
B | D | D | D | C | A |
Every grade on this page carries a source basis, and on the deciding axis the mix is worth stating plainly: 56 Vendor Published, 5 Third Party Estimated. That is almost entirely vendor published material, which matters more here than on any other lane page. A vendor describing its own consent mechanics is describing what the product can do, not what your team will configure it to do, and the index grades the disclosure rather than the deployment. Where a public enforcement or litigation record bears on a vendor, it is graded under the Regulatory or Legal Record basis and noted on that vendor profile.
Read the full methodology →6 questions the published materials will not answer
Where the index found nothing to grade, these are the questions that close the gap. Put them in the evaluation, and get the answers in writing rather than on a call.
Does the product scrub against the national do not call registry and our internal suppression list before dialing, and how often is that list refreshed?
A scrub that runs at import rather than at dial time is a scrub with a hole in it, and the size of the hole is however long your lists sit between refreshes.
How is prior express written consent captured and stored per contact, and can you produce the record for a single disputed number?
The test of a consent system is whether it can produce one record on demand months later, not whether the marketing page says consent is supported.
Does the product place calls with an AI or prerecorded voice, and do your materials address the artificial voice rules by name?
The FCC has treated AI generated voices as artificial voices for these purposes, which puts a voice agent inside the consent regime rather than outside it. A vendor that has not addressed that in writing has not thought about it.
What does the agent say when a prospect asks it directly whether it is a human?
Ask for the actual configured response rather than the policy. This is the axis where the whole category grades worst, and the answer is usually a live setting rather than a documented commitment.
How is caller ID handled, including local presence practice and STIR/SHAKEN attestation level?
Local presence dialing and attestation are where connect rate optimization meets carrier and regulatory reality, and the trade is being made on your number rather than the vendor’s.
What is the measurement basis for your connect rate claim, and who carries the risk in the contract if we are sued?
A connect rate without a stated population is marketing, and an indemnity that excludes the customer’s own calling conduct covers very little of what actually goes wrong here.
Common questions
Are AI powered dialers compliant with TCPA rules for outbound calling?
Compliance is a property of a calling program rather than of a product, and the obligation under the Telephone Consumer Protection Act sits with the caller rather than with the software vendor. What can be assessed is what each platform publishes about the mechanics. Of the 61 dialers and AI voice platforms in the GTM Tech Index, 20 document consent capture, do not call scrubbing and opt out handling substantively, and 9 describe automated calling with none of those mechanics stated anywhere. The FCC has treated AI generated voices as artificial voices for these purposes, which places voice agents inside the consent regime rather than outside it. Nothing here is legal advice.
Do AI voice agents have to tell people they are AI?
Article 50 of the EU AI Act has applied since 2 August 2026 and requires that a person interacting directly with an AI system is informed of that fact, unless it is obvious to a reasonably observant person. It reaches deployers as well as providers and applies where the output is used in the EU regardless of where the vendor sits. Separately, the FCC treats an AI generated voice as an artificial voice under the TCPA. Against that, only 10 of 61 platforms in this category document their disclosure posture in any checkable way, and not one reaches the top grade on that axis. Buyers should expect to settle this in the contract rather than find it on the website.
Which AI dialer vendors publish evidence for their connect rate claims?
Fewer than make the claim. Nearly every dialer and AI voice platform sells on connect rates, conversations per hour or meetings booked, and 22 of the 61 in the GTM Tech Index publish the evidence behind those claims at a standard a buyer can check, graded A or B on Operational and Outcome Evidence. 3 reach the A, a claim published with its population, period and measurement basis, and 15 carry a D, a figure with nothing published behind it. Among the platforms on this page's shortlist, those publishing a basis at A or B include SmartReach.io, Apollo.io, Readymode, VanillaSoft, Revenue.io and Close, with 6 more. A connect rate means little until three things are attached to it: the calling population it was measured on, the period, and whether a connect means a live person or any answered line, voicemail included. Ask for all three before a pilot, then measure your own for the first two weeks.
Which index tracks dialers and AI voice vendors?
The GTM Tech Index tracks 61 dialers and AI voice platforms, each graded on the same seventeen capability axes from public artifacts, with a verification date and a source basis on every figure. It is independently maintained, no vendor pays for inclusion or placement, and material changes to capability, pricing and compliance posture are logged as they are verified.
What are the best AI dialers for outbound calling?
The index does not publish a single ranked winner, because a dialer is bought for a calling motion and the right one depends on whether that motion is parallel, power or agent led. What it does publish is which platforms can be checked before signing. 20 of 61 document consent and scrubbing mechanics at a grade of A or B, and those 20 are listed on this page with their grades across the 6 axes this category is decided on. Not one of the 61 clears all 6 at A or B. Connect rate claims are worth discounting until a population and period are attached: 15 of the 61 publish no outcome evidence beyond assertion.
Which AI dialer vendors document their TCPA compliance features?
20 of the 61 dialer and voice vendors in the GTM Tech Index document consent capture, do not call scrubbing and suppression mechanics well enough to be graded A or B on Outreach Compliance Posture, and 9 describe automated calling with none of those mechanics stated anywhere. SmartReach.io, Apollo.io, Leadping, Readymode, SellifyGPT and Symbo carry an A on that axis, and 3 more on the shortlist do, meaning the mechanics are described specifically enough to be checked against the product. The shortlist on this page is that set, with grades on recipient disclosure, AI disclosure, outcome evidence, privacy posture and pricing beside it. Documented is not the same as compliant: the index grades what a vendor publishes, and the consent regime applies to the caller, which is you.
How should AI dialers handle opt out and do not call requests?
At dial time, not at import, and with a record that can be produced later. The two mechanics that matter are scrubbing against the national do not call registry and your internal suppression list on every dial rather than once per list load, and honoring an opt out spoken to the agent mid call as a suppression, logged with a timestamp, that survives the next list refresh. A dialer using an AI or prerecorded voice sits inside the artificial voice rules rather than outside them, so the opt out has to work when a machine is the one on the line. 20 of 61 vendors here document those mechanics at A or B; the rest leave a buyer to discover the behavior during the first complaint.
Which AI voice dialers disclose to the person on the call that they are AI?
The index can only report the ones that say so in public, and it is a short list. 10 of the 61 dialers and AI voice platforms in the GTM Tech Index document how the person on the call is told they are dealing with software, at a grade of A or B, and 13 carry a D. Not one reaches the A, which requires that automated interaction discloses itself by default. A B means disclosure is available and documented but not the default, or the posture is addressed with one real gap. On this page's shortlist, the platforms that also document consent and do not call mechanics, SmartReach.io, Leadping, SellifyGPT, VanillaSoft, Revenue.io and Nooks are among them. Two rules reach the business placing the call: Article 50 of the EU AI Act has required since 2 August 2026 that people interacting with an AI system be told so, and the FCC treats an AI generated voice as an artificial voice. Confirm the disclosure in the contract and listen for it in the pilot. Nothing here is legal advice.
The GTM Tech Index is an independent editorial reference. No vendor pays for inclusion, placement, or rating. Grades reflect the public evidence on the verification date and change as vendors publish more. Compliance postures are assessed from published sources and public records; the index is not a law firm and nothing here is legal advice. Vendors who believe a record is wrong are invited to point the index at published documentation through the contact form on any page, and corrections are logged in the change log.