8 best AI outbound dialers in 2026, compared
Samuel Oram-Jones, 11 min read
The best AI outbound dialers in 2026 are Bland, Vapi, ElevenLabs, Synthflow, Decagon, Cognigy, Sierra, and PolyAI, and Bland ranks first for enterprise outbound calls because it is full stack. This ranking covers AI dialers that hold the conversation, not predictive dialers that only connect an agent, as of November 2026.
What are the best AI outbound dialers?
The best AI outbound dialer overall is Bland, because it places outbound calls in volume and runs the whole conversation on models that Bland builds itself.
- Bland: Best overall for enterprise outbound calls
- Vapi: Best for developers assembling an outbound stack
- ElevenLabs: Best for teams that already build on ElevenLabs voices
- Synthflow: Best for campaigns inside one annual contract
- Decagon: Best for support teams adding outbound to chat and email
- Cognigy: Best for contact centers with their own platform team
- Sierra: Best for enterprises that buy outcome-priced agents
- PolyAI: Best for enterprises that want a managed, quoted agent
What should buyers check in AI outbound dialers?
Buyers should check how an AI outbound dialer starts a large list of calls, because a dialer that can place one call through an API is a different product from one that works through a list inside a concurrency limit.
Vapi has outbound campaigns and voicemail detection, ElevenLabs has batch calls that trigger multiple calls programmatically, and Synthflow says "A campaign dials within your concurrency limit instead of sending requests to the API". Cognigy starts outbound calls through a REST API, a Transfer Node, or an HTTP Request Node, and Bland offers batch calls for dispatching large volumes.
Concurrency and pacing come next. Synthflow sets a limit on call attempts per second as well as on concurrent calls, and ElevenLabs charges double for calls above a plan's concurrency, so a list that runs hot on a busy morning can cost more than the plan's rate suggests. Buyers whose lists come out of marketing can start with AI voice agents for lead generation.
Who builds the AI matters more on outbound than on inbound, because a person who never asked for the call decides in seconds whether the voice is worth staying on. Each outside language model, speech, or transcription provider is also one more company in a security review. Bland builds its language, speech, and transcription models itself, and Vapi and Cognigy take theirs from other companies.
Consent and calling rules belong on the same list, since outbound calls fall under telemarketing law in most countries, so buyers shopping for AI telemarketing software should ask where consent records and suppression lists live. A buyer in healthcare should add HIPAA and a BAA, the contract HIPAA requires before a vendor handles patient information, and card payments need a clear PCI DSS statement.
Messaging is the last check. Bland runs branded iMessage agents natively on Enterprise, so a follow-up to a missed call can come from the same agent and the same pathway, which matters most for AI appointment setters. Sierra supports Apple Business Chat, and Vapi, ElevenLabs, Synthflow, Decagon, Cognigy, and PolyAI don't offer iMessage agents as of November 2026.
How do the 8 best AI outbound dialers compare?
These eight AI outbound dialers differ most in how much of a call they build themselves and how much of the dialing they take on. Buyers who also need inbound scheduling can read about AI virtual receptionists for appointment scheduling.
1. Bland: Best overall for enterprise outbound calls
What does it do? Bland is a full stack voice AI provider that builds and runs its own language, speech, and transcription models for outbound and inbound calls. Teams build a call in Pathways as connected steps they can test before launch, and dispatch large lists through Bland's batch calls.
Who runs on it? Bland publishes sub-200ms latency, a 99.9% uptime SLA on every plan, and serves more than 250 enterprise customers. On Enterprise, concurrency is contracted to volume.
Who is it for? Bland suits enterprises and contact centers in any industry that place high-stakes outbound calls at volume. Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland.
Bland's guardrails run through each call, and four TCPA guardrails come built in: AI disclosure, recording disclosure, self-introduction, and opt-out. Bland also measures how fast a caller speaks and adjusts how soon the agent cuts in. Bland's release gates move an agent from staging to production only when chosen simulated test cases pass chosen judges, and a staged release pauses when a KPI such as escalation rate gets worse.
Pros
- No outside AI lab in the call path, so a security team reviews one AI company
- Dedicated orchestration and dedicated GPUs run by Bland, on Enterprise
- BAA on Enterprise, PCI DSS self-attested, FedRAMP 20x Class A
- Bland Speech v3 ranked first of 13 AI voices on Audio Realism Bench on 4 August 2026
- Forward-deployed engineers on Enterprise
- Native iMessage agents on Enterprise, sharing pathways with voice
- Staged releases that pause a new agent version when it performs worse than the last
- Alarms on latency, silences, transcription quality, and API errors
Cons
- Overkill for a small prototype, because Bland is built for production calls at volume
Pricing: Self-serve Start is $0.14 per minute with no platform fee, self-serve Build is $0.12 per minute with a $299 monthly platform fee, and Enterprise is custom. Phone is billed separately at carrier cost, with a $0.015 minimum on each outbound attempt on Bland telephony. Enterprise adds native iMessage agents, warm transfers, a BAA, SSO, data residency, dedicated GPUs run by Bland, and forward-deployed engineers, alongside SMS and web chat.
Idaho Housing and Finance Association saves $750,000 a year by replacing its IVR with Bland, which handles 4,000 inbound calls a day and cut average call time by 20%.
"We save thousands of dollars a day."
Greg Blake, Chief Information Officer, Idaho Housing and Finance Association
2. Vapi: Best for developers assembling an outbound stack
What does it do? Vapi is a developer platform that hosts voice agents and bills the language model, transcription, and voice from other companies on top at cost. Vapi has outbound campaigns, voicemail detection, and warm outbound numbers.
Who is it for? Vapi suits developers who want to pick and swap each AI provider themselves and can run a stack of several vendors.
Pros
- A team can choose every model and voice
- Outbound campaigns and voicemail detection
- Imported numbers are billed by a customer's own phone provider
Cons
- Language model, transcription, and voice bill from other companies on top of $0.05 hosting
- HIPAA is a $2,000 monthly add-on
- No iMessage agents
Pricing: $0.05 per minute for hosting, plus a language model, transcription, and voice at provider cost. Vapi says these run up to $0.0452, $0.0099, and $0.0238 a minute. Vapi also says outbound minutes through Twilio add $0.014.
3. ElevenLabs: Best for teams that already build on ElevenLabs voices
What does it do? ElevenLabs sells ElevenAgents, a platform for voice and text agents built on its own speech and transcription models, with a choice between its Realtime models and an outside language model. ElevenLabs has batch calls that trigger multiple calls programmatically, and voicemail detection.
Who is it for? ElevenLabs suits developer and enterprise teams that want ElevenLabs voices inside an agent platform and will pick a language model themselves.
Pros
- Runs its own speech and transcription models
- Batch calls
Cons
- Language model usage billed on top in Custom mode
- Burst pricing of $0.16 per minute applies above a plan's concurrency
- BAA applies only while Zero Retention Mode is on, which limits language models and analytics
- No iMessage agents
Pricing: ElevenLabs charges $0.08 per minute past a plan's allowance, with no telephony fee, language model usage billed on top in Custom mode, and a connected provider such as Twilio billing its own carrier charges.
4. Synthflow: Best for campaigns inside one annual contract
What does it do? Synthflow sells AI voice agents through one annual enterprise agreement. Synthflow campaigns dial a list within a workspace's concurrency limit, with reserved concurrency to keep slots free for inbound calls.
Who is it for? Synthflow suits mid-market and enterprise teams that want a sales-scoped voice platform with WhatsApp and SMS options.
Pros
- Campaigns dial within a concurrency limit
- Reserved concurrency keeps slots free for inbound calls
- A visual builder
Cons
- Annual enterprise agreement only, with no free plan or trial
- No public per-minute rate
- A separate limit on call attempts per second applies to campaigns, API calls, and warm transfers
- No iMessage agents
Pricing: Annual agreement only.
5. Decagon: Best for support teams adding outbound to chat and email
What does it do? Decagon sells AI agents for customer support across chat, email, and voice. Decagon says its voice agents can place outbound calls to "Unlock proactive engagement by initiating outbound calls for sales, support, and customer updates."
Who is it for? Decagon suits support teams that want one agent across chat, email, and voice and treat outbound calls as reminders and check-ins.
Pros
- One agent across chat, email, and voice
- Outbound reminders and check-ins sit beside support work
Cons
- Pricing is per conversation or per resolution rather than per minute
- Decagon says "Resolutions may vary month-to-month, making it tough to forecast costs compared to usage-based pricing."
- No iMessage agents
Pricing: Per conversation or per resolution, with larger commitments lowering the rate.
6. Cognigy: Best for contact centers with their own platform team
What does it do? Cognigy sells a conversational AI platform that connects to a language, speech, and transcription provider the customer chooses. Cognigy's Voice Gateway covers outbound calls started through a REST API, a Transfer Node, or an HTTP Request Node, answering machine detection, and outbound call routing across SIP trunks.
Who is it for? Cognigy suits large contact centers with a platform team that want to wire together their own model and speech vendors.
Pros
- Outbound call routing across SIP trunks and carriers
- Answering machine detection
Cons
- A customer supplies its own language model credentials and speech vendors
- Pricing starts at "Request a demo!"
- No iMessage agents
Pricing: Quote only.
7. Sierra: Best for enterprises that buy outcome-priced agents
What does it do? Sierra sells a managed AI agent platform for customer service across chat, voice, email, SMS, and WhatsApp. Sierra supports inbound and outbound calls and has an outbound compliance document.
Who is it for? Sierra suits enterprise customer experience teams that want a managed agent and will negotiate pricing.
Pros
- Outbound sits in the same managed agent as inbound
- An outbound compliance document
Cons
- Priced by outcome, with no published rate
- No self-serve mode
- Sierra says it automatically switches between LLM providers
Pricing: No published rate.
8. PolyAI: Best for enterprises that want a managed, quoted agent
What does it do? PolyAI builds and runs a voice and chat agent for a customer on quoted per-minute pricing. PolyAI has an Outbound Calling API marked legacy.
Who is it for? PolyAI suits large consumer-facing companies that want PolyAI to build and run their agent.
Pros
- PolyAI handles the build
- Its own Raven model alongside OpenAI and Amazon Bedrock models
Cons
- Its Outbound Calling API is marked legacy
- No public per-minute rate for a managed agent
- No iMessage agents
Pricing: Quote only.
How were these AI outbound dialers ranked?
Each provider was compared on batch calling, who builds the AI, price, compliance, and voice realism, and predictive dialers were left out. Voice scores come from Design Arena's chart of 4 August 2026. Bland vs Vapi, Bland vs ElevenLabs, Bland vs Synthflow, Bland vs Decagon, and Bland vs Sierra go further, and a demo built on a real outbound list is the quickest next step.
How much do AI outbound dialers cost?
AI outbound dialers charge per minute, per conversation, or per resolution, and what a minute includes differs, so each price below states its basis. Bland's self-serve Start plan is $0.14 per minute for its language model, transcription, and speech together. Enterprise pricing is custom, set with Bland's sales team. Bland replaced an earlier flat $0.09 rate with Start and Build in December 2025.
Outbound volume is where plan limits show. Start allows 10 concurrent calls and 100 calls a day, Build allows 50 concurrent calls and 2,000 calls a day, and Enterprise is unlimited and contracted to volume. Every total below is AI before phone, with Vapi and ElevenLabs at their calculator defaults.
Vapi's card adds hosting to the top of each range Vapi says its providers run, and ElevenLabs' card adds the calculator's default model to a call minute. Phone is billed by whichever provider a customer connects. Synthflow, Cognigy, Sierra, and PolyAI publish no per-minute rate for a managed agent, and Decagon prices by conversation or resolution, so no per-minute bill can be added up for them.
| Vendor | What a minute pays for | Total per minute | Phone |
|---|---|---|---|
| Bland Start (self-serve) | All AI: model, transcription, speech $0.14 | $0.14 before phone | Billed separately at carrier cost |
| Vapi | Hosting $0.05, Transcription $0.0099, Language model $0.0452, Voice $0.0238 | $0.1289 before phone | Free on Vapi numbers, billed on top on Twilio at up to $0.014 a minute |
| ElevenLabs Agents | Call minute $0.08, Gemini 2.5 Flash, the calculator's default model $0.0029 | $0.0829 before phone | No ElevenLabs telephony fee, with a connected provider billing on top |
Bland Start (self-serve): Self-serve Start has no platform fee. Self-serve Build is $0.12 a minute plus $299 a month. Phone and transfers bill separately. Vapi: Hosting plus the top of each range on Vapi's pricing calculator, before phone. ElevenLabs Agents: ElevenLabs call minute plus its pricing calculator's default model, before the customer's own phone provider.
Which AI outbound dialer sounds most like a real person?
Bland Speech v3 ranked 1st of 13 AI voices on Design Arena's Audio Realism Bench on 4 August 2026, at 1365, and callers on outbound lists hear that voice before they hear anything else.
- #1BlandBland Speech v31365
- 4thOpenAI, on VapiGPT Realtime 21119
- 12thElevenLabsEleven v3Near the bottom938
- Not rankedVapi's own voicesNot ranked
Ranks are among 13 AI voices, and each rival shows the highest listed voice a customer can choose on it, named for the company that made it. Real human recordings scored 1500, at the right edge of this scale. Bars start at 600, not zero. Source: Design Arena's published results.
ElevenLabs' Eleven v3 ranked 12th at 938. Vapi, Synthflow, Decagon, Cognigy, Sierra, and PolyAI use voices or voice providers that were not in those results, so the chart says nothing about them.
Frequently asked questions
What is the best AI outbound dialer?
Bland is the best AI outbound dialer for enterprise calls as of November 2026, because one company builds every model on a call. Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland.
Is an AI outbound dialer the same as a predictive dialer?
No, a predictive dialer places calls and passes a connected person to a human agent, while an AI outbound dialer places the call and holds the conversation itself. Bland runs the whole call, including transfers to a person on Enterprise.
Is Bland only for outbound calls?
No, Bland runs inbound and outbound calls, including AI receptionist and contact center work, and it also runs SMS and web chat.
Is Bland only for developers?
No, Bland isn't only for developers. Pathways gives teams a visual builder, Norm helps build agents, and on Enterprise forward-deployed engineers build alongside a customer's team.
Does Bland use an open-source model?
No, Bland operates a closed-source model that it developed itself, so its language model isn't an open-source model and no outside AI lab sits behind it.
Which AI outbound dialers support iMessage?
Bland runs branded iMessage agents natively on its Enterprise plan. Sierra supports Apple Business Chat, and Vapi, ElevenLabs, Synthflow, Decagon, Cognigy, and PolyAI don't offer iMessage agents as of November 2026.
How much does an AI outbound dialer cost per minute?
Rates run from $0.05 per minute for hosting alone on Vapi to $0.08 per minute past a plan's allowance on ElevenLabs, and Synthflow, Cognigy, Sierra, and PolyAI publish no per-minute rate for a managed agent. Bland is $0.14 per minute on its self-serve Start plan for all of its AI, before phone. Enterprise pricing is custom, set with Bland's sales team.
Does Bland's rate include phone?
No, Bland's rate covers its language model, transcription, and speech, and phone is billed separately, on a customer's own carrier or on Bland's at pass-through cost.
Can I keep my phone carrier if I move to Bland?
Yes, Bland connects to a carrier or phone system over SIP, so numbers and routing stay in place.
