# 8 best voice AI agents to reduce average handle time in 2026

By Samuel Oram-Jones

The best voice AI agents to reduce average handle time in 2026 are Bland, PolyAI, Vapi, Aircall, Five9, Twilio, Kore.ai, and Retell, and Bland ranks first because one company builds every model on a call. This ranking compares each on who builds the AI, how a minute is billed, and handoff, as of November 2026.

## What are the best voice AI agents to reduce average handle time?

The best voice AI agent to reduce average handle time overall is Bland, because the models that listen, decide, and speak are all Bland's own, and the other seven providers lean on outside companies, seat bundles, or a quote for at least part of a call.

Average handle time, often shortened to AHT, is the talk time, hold time, and after-call work that a single contact adds up to. A voice AI agent shortens it by settling routine steps such as verification, intake, and scheduling on the call itself, and by passing a caller to a person with the details already captured.

- **Bland:** Best overall for high-volume calls that must be settled fast
- **PolyAI:** Best for enterprises that want a managed, quoted agent
- **Vapi:** Best for developers assembling their own call stack
- **Aircall:** Best for teams on a cloud phone system with AI voice add-ons
- **Five9:** Best for contact centers that staff live agents on seats
- **Twilio:** Best for developers building voice on a phone network API
- **Kore.ai:** Best for enterprises building chat and voice agents
- **Retell:** Best for developer teams that pick their own model and voice

| Provider | Best for | Price | Who builds the AI | iMessage |
|---|---|---|---|---|
| Bland | Fast, high-volume calls | $0.14 per minute on self-serve Start, $0.12 on self-serve Build plus $299 a month, phone billed separately | Bland builds all of it | Native on Enterprise |
| PolyAI | Managed, quoted agents | Quote only | Mixed | No |
| Vapi | Developers assembling a stack | $0.05 per minute for hosting, plus providers | Other companies | No |
| Aircall | Cloud phone teams | $0.29 per minute on usage pricing, from $99 a month | Undisclosed | No |
| Five9 | Seat-based contact centers | Per concurrent seat, from $119 a month | Undisclosed | No |
| Twilio | Developers on a phone API | $0.07 per minute for Conversation Relay, with phone and a language model on top | Other companies | Private beta |
| Kore.ai | Enterprise chat and voice | $0.20 per session on its standard plan | Undisclosed | No |
| Retell | Developer teams | $0.07 to $0.31 per minute, with the model and voice as separate lines | Other companies | No |

## What should buyers check in voice AI agents to reduce average handle time?

Buyers should check first what the agent settles without a person, because handle time only falls when verification, intake, and routine updates finish on the call instead of moving to a human queue. Teams comparing AI sales reps rather than phone agents can read [Regie.ai vs 11x vs Artisan](/blog/bland-vs-regie-ai-vs-11x-vs-artisan).

Speed on the line comes next. A long pause before each reply adds seconds to every turn of a call, and Bland publishes sub-200ms latency and adjusts how soon its agent cuts in to a caller's speaking pace, slowing down for slower speakers, while a team weighing any other provider should ask for a figure it can test on its own traffic.

Billing is the third check, since handle time is also what some contracts charge for. PolyAI's contract says "the total handle time is rounded up to the next 30-second increment", and a short call that rounds up gives back part of the time it saved.

![Bland's trust page, which reads Pass security review on day one, with voice, text to speech, transcription, and language models all owned and operated by Bland.](/images/compare/bland-trust.jpg)

Who builds each model on a call matters because every outside company is one more name in a [security review](/blog/call-center-security-best-practices). Vapi and Retell take their language model from other companies, Twilio's Conversation Relay uses speech models from Deepgram, Google, ElevenLabs, and Amazon with a language model the customer brings, and Bland builds its language, speech, and transcription models itself.

Where a call may run is a fourth check. Security rules decide where a company's audio may be processed, so it is worth asking each provider where its calls run, and Bland sets out its own answer in its [security program](https://www.bland.ai/trust-security). Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland.

Compliance paperwork covers the calls that touch health or card details. A BAA is the contract [HIPAA](/hipaa-compliant-voice-ai) requires before a vendor handles patient information, and card payments need a clear [PCI DSS](/pci-compliant-voice-ai) statement. Bland self-attests to PCI DSS v4.0.1, holds FedRAMP 20x Class A, a level of the US government's cloud security program, and shares its attestation under NDA on Enterprise.

Messaging beside voice is the last check. Bland runs branded iMessage agents natively on Enterprise, Twilio offers Apple Messages for Business as a private beta, and the other six providers here don't offer iMessage agents. Teams that already run queues can read how [voice AI agents for call containment](/blog/best-voice-ai-call-containment) work beside them, and [conversational AI platforms for ticket deflection](/blog/best-conversational-ai-ticket-deflection) covers the support side of the same problem.

## How do the 8 best voice AI agents to reduce average handle time compare?

These eight providers differ most in how much of a call they build themselves and in how they charge for the minutes a call takes.

![Bland's homepage, which reads Voice AI for the calls that can't go wrong.](/images/compare/bland-home.jpg)

### 1. Bland: Best overall for high-volume calls that must be settled fast

**What does it do?** Bland is a full stack voice AI provider that builds and runs its own language, speech, and transcription models for inbound and outbound calls, with a visual builder called Pathways where teams connect steps for verification, intake, and scheduling, and test them before launch. Bland also runs SMS and web chat on Enterprise.

**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 want routine steps settled on the call at volume, including teams with strict security reviews.

<div class="cmp-proscons cmp-proscons-own"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>No outside AI lab in the call path, so a security team reviews one AI company</li><li>Dedicated orchestration and dedicated GPUs run by Bland, on Enterprise</li><li>BAA on Enterprise, PCI DSS self-attested, FedRAMP 20x Class A</li><li>Bland Speech v3 ranked first of 13 AI voices on Audio Realism Bench on 4 August 2026</li><li>Forward-deployed engineers on Enterprise</li><li>Native iMessage agents on Enterprise, sharing pathways with voice</li><li>Alarms on latency, silences, transcription quality, and API errors</li><li>Call grading on the audio as well as the transcript</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Overkill for a small prototype, because Bland is built for production calls at volume</li></ul></div></div>

**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](https://www.bland.ai/pricing) is priced to volume. Phone is billed separately at carrier cost. 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. PolyAI: Best for enterprises that want a managed, quoted agent

**What does it do?** PolyAI builds and runs a voice agent for a customer on quoted per-minute pricing, with its own Raven model family beside GPT and Claude models. PolyAI also sells a Dialog-RSN-1 model API at 2¢ per connected minute, without telephony or orchestration.

**Who is it for?** PolyAI suits large consumer-facing companies that want it to build and run their agent, from hotels and restaurants to insurers and telcos.

<div class="cmp-proscons" data-rival="polyai"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>PolyAI handles the build and the ongoing running</li><li>Has SOC 2 Type II and ISO/IEC 27001</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>No public rate for a managed agent</li><li>PolyAI's contract says "the total handle time is rounded up to the next 30-second increment"</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** A managed agent is quoted per minute with no public rate. PolyAI's model API says it is "Billed on connected time, with no minimums and no rounding up to the minute."

### 3. Vapi: Best for developers assembling their own call 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 says it passes these through with "no markup", so a team picks and wires every provider itself, including the handoff to a person.

**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.

<div class="cmp-proscons" data-rival="vapi"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>A team can choose every model and voice</li><li>Imported numbers are billed by a customer's own phone provider</li><li>Vapi says it is SOC 2 Type II attested</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Language model, transcription, and voice bill from other companies on top of $0.05 hosting</li><li>HIPAA is a $2,000 monthly add-on</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** $0.05 per minute for hosting, plus a language model, transcription, and voice at provider cost, which Vapi says run up to $0.0452, $0.0099, and $0.0238 a minute, before phone.

### 4. Aircall: Best for teams on a cloud phone system with AI voice add-ons

**What does it do?** Aircall sells a cloud business phone system priced per license, with SMS, MMS, and WhatsApp messaging and AI Voice Agents billed in minutes. Aircall says its AI Voice Agents "can take action across connected systems during or after a call", and it offers custom routing, escalation paths, and handoffs.

**Who is it for?** Aircall suits sales and support teams that staff human agents on a per-license phone system and want AI Voice Agents alongside it.

<div class="cmp-proscons" data-rival="aircall"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>Per-agent dashboards show autonomous resolution rate, goal completion rate, and call transfer rate</li><li>Native Aircall numbers and business telephony</li><li>Has HIPAA, GDPR, and SOC2 under enterprise-grade compliance</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Language model, speech, and transcription providers are undisclosed</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** AI Voice Agents start at $99 a month, usage pricing is $0.29 per minute, and a subscription adds a "1,000 minute bundle ($250/month) + $0.29/min for additional". Aircall includes the language model, voice infrastructure, and telephony call rates in that rate, and phone system licenses start at $30 a user.

### 5. Five9: Best for contact centers that staff live agents on seats

**What does it do?** Five9 sells a cloud contact center platform priced in seat bundles, with voice, chat, email, SMS, and social messaging channels and add-on AI. Five9 lists "AI : 3000 minutes per bundled seat + usage".

**Who is it for?** Five9 suits contact centers that staff human agents and want a seat-priced platform with AI add-ons.

<div class="cmp-proscons" data-rival="five9"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>AI minutes come bundled with each seat</li><li>Voice, chat, email, SMS, and social messaging on one platform</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Pricing is per concurrent user with a minimum of 50 seats</li><li>Advertises "SLA = 99.999%", while "To receive credit, customer must have SLA in their contract and request a credit for a service disruption."</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** Per concurrent user a month, from $119 on a digital bundle and $159 on Core, with a minimum of 50 seats and usage-based pricing that may apply.

### 6. Twilio: Best for developers building voice on a phone network API

**What does it do?** Twilio is a cloud communications platform whose Conversation Relay product connects phone calls to a developer's own language model, adding speech recognition and text-to-speech. Twilio says "Twilio is AI-neutral, so you bring your own LLMs", which leaves prompts, tool calls, and handoffs to the team writing the code.

**Who is it for?** Twilio suits engineering teams that write their own voice agent code and bring a language model, on top of Twilio's phone network.

<div class="cmp-proscons" data-rival="twilio"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>Teams bring any language model and write their own handoff logic</li><li>Has a 99.95% API SLA</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Speech and voice models come from Deepgram, Google, ElevenLabs, and Amazon, and a team brings its own language model</li><li>Conversation Relay, phone minutes, and any language model are separate charges</li></ul></div></div>

**Pricing:** Conversation Relay runs $0.07 per minute, local calls run $0.0085 a minute inbound and $0.0140 outbound, and a language model is billed by whichever company supplies it.

### 7. Kore.ai: Best for enterprises building chat and voice agents

**What does it do?** Kore.ai sells an enterprise agent platform for service, work, and process automation across digital and voice channels. Kore.ai has a native Voice Gateway and speech providers including Google, Microsoft Azure, AWS Polly, ElevenLabs, Deepgram, and OpenAI that a team sets per language.

**Who is it for?** Kore.ai suits large enterprises that want one platform for chat, messaging, and voice agents.

<div class="cmp-proscons" data-rival="kore-ai"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>Chat and voice agents on one platform</li><li>Speech providers set per language</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Bills by conversation or session rather than by the minute of a call</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** The standard plan charges $0.20 per session, and Kore.ai says on Enterprise "a Session is the billing unit clocked for 15 minutes of interaction with the bot". New users get free credits worth $500, and support starts at $1,000/month.

### 8. Retell: Best for developer teams that pick their own model and voice

**What does it do?** Retell is a platform for building and monitoring AI voice and chat agents, billed per minute with the language model and voice priced as separate lines. A customer's own SIP trunk (a connection to the phone network) carries no Retell phone charge, and phone on Twilio or Telnyx is billed on top.

**Who is it for?** Retell suits developer-led teams that want to choose their own language model and voice and pay per minute.

<div class="cmp-proscons" data-rival="retell"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>A wide choice of language models and voices</li><li>Has SOC 2, HIPAA, and GDPR coverage</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Advertises "We guarantee >99.9% uptime", while its terms say "at least 99.5% uptime"</li><li>PII (personal data) Removal adds $0.01 a minute</li><li>No iMessage agents</li></ul></div></div>

**Pricing:** $0.07 to $0.31 per minute depending on the language model and voice, with Retell Voice Infra, GPT-4.1, and an ElevenLabs Flash voice coming to $0.14 per minute before phone.

### How were these voice AI agents ranked?

Providers were compared on who builds the AI, what a call settles before a person is needed, how a minute is billed, compliance, and voice realism, with weight on what a team measuring handle time needs. Every claim about a provider comes from its own public pages as read in November 2026, and voice scores come from Design Arena's chart of 4 August 2026.

Closer comparisons sit in [Bland vs PolyAI](/compare/bland-vs-polyai), [Bland vs Vapi](/compare/bland-vs-vapi), [Bland vs Twilio](/compare/bland-vs-twilio), and [Bland vs Retell](/compare/bland-vs-retell). Related rankings cover [conversational AI platforms for outbound phone sales](/blog/best-conversational-ai-outbound-phone-sales).

## How much do voice AI agents to reduce average handle time cost?

These providers sell by the minute, by the session, by the seat, and by quote, 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, and Bland replaced an earlier flat $0.09 rate with Start and Build in December 2025. Enterprise pricing is custom, set with Bland's sales team.

![Bland's pricing page, with self-serve Start at $0.14 a minute, self-serve Build at $0.12 a minute, and custom Enterprise pricing.](/images/compare/bland-pricing.jpg)

Every total below is AI before phone, with Vapi at its calculator defaults. Retell's card adds Retell Voice Infra, GPT-4.1, and an ElevenLabs Flash voice to reach $0.14 per minute, while Retell publishes a range of $0.07 to $0.31 per minute depending on the model and voice. Vapi's card adds hosting to the top of each range on its pricing calculator.

PolyAI publishes no per-minute rate for a managed agent, so no bill can be added up for it. Aircall's $0.29 per minute includes telephony, which puts it on a different basis from the AI-only totals here, and Five9 charges per seat, Twilio per component, and Kore.ai per session.

| 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 |
| Retell | Voice infrastructure $0.055, GPT-4.1 $0.045, ElevenLabs Flash voice $0.04 | $0.14 before phone | Twilio at $0.015 a minute, billed on top |
| 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 |

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. Retell: Retell Voice Infra, GPT-4.1, and an ElevenLabs Flash voice, before Twilio phone minutes. Vapi: Hosting plus the top of each range on Vapi's pricing calculator, before phone.

## Which handle time voice AI agent 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 every outside voice in those results that Retell and Vapi let a customer choose scored lower.

On Retell and Vapi the highest outside voice was OpenAI's GPT Realtime 2, 4th at 1119.

See [Design Arena's published results](https://notes.designarena.ai/audio-realism-benchmark-measuring-realism-in-audio-models/).

## Frequently asked questions

### What is the best voice AI agent to reduce average handle time?

Bland is the best voice AI agent to reduce average handle time at enterprise volume as of November 2026, because one company builds every model on a call. Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland.

### How does a voice AI agent reduce average handle time?

A voice AI agent reduces average handle time by settling routine steps such as verification, intake, and scheduling on the call, and by passing a caller to a person with details already captured. Bland builds those steps in Pathways, its visual builder, and publishes sub-200ms latency.

A Bland browser-use subagent can also fill out a web form for a caller during a call while the main agent keeps talking, and ask the caller to correct anything the form rejects.

### Which handle time voice AI agents are HIPAA compliant?

Bland is HIPAA compliant and includes its BAA on Enterprise. Retell and PolyAI sign a BAA, Aircall has HIPAA under enterprise-grade compliance, and Vapi sells HIPAA mode as a $2,000 monthly add-on, all as of November 2026.

### 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 handle time voice AI agents support iMessage?

Bland runs branded iMessage agents natively on its Enterprise plan. Twilio offers Apple Messages for Business as a private beta, while PolyAI, Vapi, Aircall, Five9, Kore.ai, and Retell don't offer iMessage agents as of November 2026.

### How much does a voice AI agent cost per minute?

Rates run from $0.05 per minute for hosting alone on Vapi to $0.07 to $0.31 on Retell depending on the model and voice, while PolyAI publishes no per-minute rate for a managed agent. Bland is $0.14 per minute on self-serve Start for all of its AI, before phone.

### 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.