How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Phone AI splits into two kinds: autonomous agents that hold the whole call, and AI assisted dialers where a human rep still leads the conversation.
- Autonomous agents suit high volume qualification and appointment setting, while human led dialers suit complex deals above 10,000 dollars with many stakeholders.
- Pricing is per minute for agents and per seat for dialers, and attempt fees, transfer minutes, and model charges can change the real bill.
- In the US, the FCC treats AI generated voices as artificial or prerecorded voices under the TCPA, so consent, recording, and suppression rules still apply.
- Disclose that the caller is AI where required, pilot on 10 percent of calls first, and hand off to humans the moment a prospect sounds frustrated or asks for one.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Bland AI | High volume autonomous qualification | See website | Yes |
 Retell AI | Configurable voice workflows | $0.07 per minute | No |
 Vapi | Developer owned voice stacks | $49 per month plus usage | No |
 Synthflow | No code enterprise deployment | See website | No |
 Air AI | Long autonomous sales conversations | $99 per month plus usage | No |
 Nooks | Rep led prospecting with coaching | See website | No |
 Orum | Larger SDR teams and dialing speed | See website | No |
 Dialpad Sell | Teams keeping humans on calls | $39 per user per month | No |
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#1Bland AI
Best for: High volume autonomous qualification5.0/5 on
G2 (11 reviews, checked Oct 2026)
Visit bland.ai
Starting priceSee website
Free planYes
Bland AI is an autonomous voice agent platform for high volume outbound qualification, with a visual Pathways builder for designing conversation flows. Reported plans run from a free Start tier through Build at 299 dollars a month and Scale at 499 dollars a month, with per minute rates falling from 14 cents to 11 cents as concurrency rises from 10 to 100 simultaneous calls. That structure suits teams that qualify thousands of leads a week with simple, repeatable questions.
The hidden costs deserve attention. Bland charges about 1.5 cents per outbound attempt even when nobody picks up, so a 2,000 call day with 70 percent voicemail adds 21 dollars before a single conversation, and transfer minutes add 3 to 5 cents per minute on Bland numbers. Bland AI fits high volume qualification teams with solid consent infrastructure and in house engineering to manage the build.
What we like- Visual conversation builder
- Low per minute rates at scale
- High concurrency
Watch out for- Attempt fees on unanswered calls
- Transfer minutes cost extra
- Consent burden sits with the buyer
Starting price$0.07 per minute
Free planNo
Retell AI is a developer first voice agent platform priced from 7 cents per minute, with volume discounts and no monthly minimum on basic usage. It offers text, simulation, and web testing tools so teams can rehearse agents before live calls, and it publishes a detailed TCPA playbook plus branded caller ID features. Documented use cases include BANT qualification and calendar booking, which cover the most common outbound sales workflows.
The trade off is ownership. Retell is built for teams with engineering resources, since conversation design, model choice, and extras change the total cost beyond the headline per minute rate. Retell fits developer teams that want low per minute pricing and full control over voice workflows, and that can build the ROI case internally.
What we like- Low 7 cent per minute rate
- Text, simulation, and web testing
- Detailed TCPA playbook
Watch out for- Developer first setup
- Model and extras change the total
- Buyer owns the build
#3Vapi
Best for: Developer owned voice stacks4.2/5 on
G2 (3 reviews, checked Oct 2026)
Visit vapi.ai
Starting price$49 per month plus usage
Free planNo
Vapi gives developer teams a voice stack they own, with a choice of speech, language, and telephony providers behind one API. Pricing starts around 49 dollars a month plus about 5 cents per minute for hosting, with provider charges on top, and paid plans allow unlimited concurrency. That flexibility appeals to teams that want to tune latency, voice quality, and model choice rather than accept a vendor managed agent.
The cost of flexibility is effort. You own the implementation, the provider bill, and the failure handling, and support is lighter than managed platforms such as Synthflow or Air AI. Vapi fits tinkering teams and startups that prioritize voice quality and control and have engineers to maintain the stack.
What we like- Choice of AI providers
- Low 5 cent hosting rate
- Unlimited concurrency on paid plans
Watch out for- Buyer owns implementation
- Provider charges sit on top
- Support is lighter than managed rivals
#4Synthflow
Best for: No code enterprise deployment4.5/5 on
G2 (1,016 reviews, checked Oct 2026)
Visit synthflow.ai
Starting priceSee website
Free planNo
Synthflow is a no code voice agent platform aimed at enterprises that want supported deployment rather than a developer build. Its Flow Designer and campaign controls let operations teams design, launch, and monitor calling campaigns without writing code, and vendor support covers deployment and tuning. Reported per minute rates sit near 13 to 16 cents all in, with low latency for global outreach.
The barrier is commitment. Enterprise contracts start near 30,000 dollars a year, which puts Synthflow out of reach for small teams and demands a clear volume case before signing. Synthflow fits enterprises that want a managed, no code path to AI calling and can commit to annual volume.
What we like- No code Flow Designer
- Campaign controls
- Supported enterprise deployment
Watch out for- Contracts from 30,000 dollars a year
- Per minute rates near 13 to 16 cents
- Enterprise commitment
#5
Air AI
Best for: Long autonomous sales conversations
Visit air.ai
Starting price$99 per month plus usage
Free planNo
Air AI specializes in long form autonomous sales conversations, holding calls of 10 to 40 minutes where most agents are built for short qualification. A configuration wizard gets teams running in hours to days, and the agent can qualify, handle objections, and book meetings across extended calls. Pricing runs around 99 dollars a month plus 15 cents per minute, with enterprise quotes for larger scale.
The limits are cost and concurrency. Entry tiers allow limited simultaneous calls, and long calls at 15 cents a minute add up fast, so Air AI needs a high value offer to justify the bill. Air AI fits teams selling complex offers where a longer first conversation, not a quick qualification, moves the deal forward.
What we like- Handles long conversations of 10 to 40 minutes
- Configuration wizard
- Quick setup
Watch out for- 15 cents per minute plus monthly fee
- Limited concurrency on entry tier
- Enterprise quote for scale
#6Nooks
Best for: Rep led prospecting with coaching4.8/5 on
G2 (1,712 reviews, checked Oct 2026)
Visit nooks.com
Starting priceSee website
Free planNo
Nooks is an AI assisted dialer, not an autonomous agent: a human rep leads every conversation, while Nooks dials in parallel, detects answers, and coaches live. That design suits relationship driven sales where buyers expect a person on the line, and it pairs with real time coaching that managers can use to lift rep performance. Reported pricing sits near 100 to 250 dollars per user per month on custom plans.
The trade off is price and data. Nooks is a premium per seat tool, and some key modes require sharing call data with the platform. It will not scale outbound without adding reps, since humans still take every call. Nooks fits SDR teams that want faster prospecting and live coaching while keeping humans on every conversation.
What we like- Adaptive parallel dialing
- Live coaching during calls
- Strong prospecting workflow
Watch out for- Custom pricing near 100 to 250 dollars per user per month
- Key modes need data sharing
- Human led only
#7Orum
Best for: Larger SDR teams and dialing speed4.6/5 on
G2 (1,099 reviews, checked Oct 2026)
Visit orum.com
Starting priceSee website
Free planNo
Orum is a pure dialing speed tool for larger SDR teams, with parallel dialing and adjustable answer detection that cut wasted dial time and put reps into more live conversations per day. It is built for team scale, with admin controls and reporting across many seats, and it integrates with common sales engagement platforms and CRMs. For teams where dial volume is the bottleneck, Orum removes it directly.
The limits are minimums and extras. Pricing is custom near 100 to 200 dollars per user per month with a nine seat minimum, and coaching features cost extra. Orum fits larger SDR teams that already have coaching covered and need raw dialing speed above all else.
What we like- Fast parallel dialing
- Adjustable answer detection
- Built for team scale
Watch out for- Custom pricing near 100 to 200 dollars per user per month
- Nine seat minimum
- Coaching costs extra
Starting price$39 per user per month
Free planNo
Dialpad Sell adds AI to a full business phone system, with AI summaries, live coaching, and call analytics inside the dialer reps already use. Pricing runs from 39 to 150 dollars per user per month depending on tier, which keeps the bill per seat and predictable. For teams that want AI help without handing calls to a bot, Dialpad Sell is the gentlest step into AI calling, since humans stay on every conversation.
The trade off is scope. Dialpad Sell offers no autonomous agent, so it cannot scale outbound without adding reps, and higher tiers reach 150 dollars per user per month. It also ties the team to the Dialpad phone system. Dialpad Sell fits teams that want AI assisted calling inside a phone platform they already trust.
What we like- Full business phone plus AI
- Per seat pricing from 39 dollars
- AI summaries and coaching
Watch out for- AI assisted only, no autonomous agent
- Higher tiers reach 150 dollars
- Phone system lock in
How we chose
We compared published pricing, third party cold calling cost guides from 2026, and feature lists for tools that automate phone based sales work. We separated autonomous agents from AI assisted dialers, since they solve different problems and carry different compliance duties, and we favored tools with clear per minute or per seat pricing. We treated vendor conversion claims with caution, since meeting rates depend on list quality, offer strength, and consent status more than on the tool. We did not rank tools by voice latency or meeting conversion, which would need a controlled calling pilot.
Start with your deal complexity. High volume, simple qualification suits Bland AI, Retell AI, or Synthflow, while complex deals above 10,000 dollars suit Nooks, Orum, or Dialpad Sell with humans on the line. Next, build the full bill: connected minutes, failed attempts, transfer minutes, phone numbers, model charges, and required seats, since a low platform fee can hide most of the voice stack. Then review compliance before any campaign: permitted audience, line types, consent records, recording rules, and suppression lists, and disclose that the caller is AI where required. Finally, pilot on 10 percent of calls, measure live conversation rate and meeting rate against human dialing, and expand only when the numbers and the compliance review both hold.
Frequently asked questions
What is the difference between an AI phone agent and an AI dialer?
An AI phone agent holds the whole conversation itself, while an AI dialer helps a human rep call faster through parallel dialing, live coaching, and automatic logging, with the rep leading every call.
Are AI cold calls legal in the US?
They can be, but the FCC treats AI generated voices as artificial or prerecorded voices under the TCPA, so consent, recording, and suppression rules apply, and a vendor outbound feature is not permission to call a list.
How much do AI phone agents cost?
Autonomous agents typically cost 5 to 31 cents per minute plus platform fees, while AI assisted dialers cost 29 to 250 dollars per user per month, so build the full bill including attempts and transfer minutes.
Should the AI disclose that it is not human?
Yes, where required by law or platform rules, and as a matter of trust in any case. Prospects who learn later that they spoke to a bot rarely book a second call.
Do AI phone agents replace SDR teams?
For simple qualification and appointment setting, they can absorb high volume work, but complex, relationship driven sales still perform better with humans on the line, and most buyers say they prefer a human.
How should I pilot an AI calling tool?
Start with 10 percent of calls, feed the agent real transcripts, test voices and failure handling, monitor sentiment for frustrated prospects, and compare live conversation and meeting rates against human dialing.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.