# Bland vs PolyAI vs Replicant vs Voiceflow (2026)

By Samuel Oram-Jones

PolyAI, Replicant, Voiceflow, and Bland turn up on the same shortlists, though they sell different things. PolyAI and Replicant run an agent for a customer on quoted prices, Voiceflow is a visual studio, and Bland is a full stack voice AI provider with published rates. This comparison covers who builds the AI, cost, and security, as of November 2026.

A BAA, the contract HIPAA requires before a vendor handles patient information, is one of the rows below.

## Which is best, Bland, PolyAI, Replicant, or Voiceflow?

For enterprise calls at volume, Bland is the best of the four as of November 2026, because Bland is full stack and builds and runs its own language, speech, and transcription models, so one AI company sits behind each call. PolyAI mixes its own Raven models with GPT and Claude models, Voiceflow lets a team pick models from outside providers, and Replicant doesn't disclose its model provider.

PolyAI and Replicant suit a large contact center that wants a vendor to run the agent for a quoted fee, and Voiceflow suits a customer experience team that designs agents in a visual studio and brings its own models and phone provider.

| Feature | Bland | PolyAI | Replicant | Voiceflow |
| --- | --- | --- | --- | --- |
| AI on each call | Full stack | Mixed | Undisclosed | Mixed |
| iMessage | Native | No | No | No |
| AI rate per minute | $0.12 to $0.14 on self-serve plans | Quote | Quote | Credits |
| HIPAA | BAA included on Enterprise | Designed to meet it | Yes | Yes |
| SOC 2 Type II | Yes | Yes | Yes | Yes |
| Channels | Voice, iMessage, RCS, SMS, web chat | Voice, web chat | Voice, chat, SMS | Phone, web chat, SMS (Beta) |

## How do Bland, PolyAI, Replicant, and Voiceflow compare?

The first difference is who runs the call. PolyAI and Replicant staff the build themselves, Voiceflow hands a customer the tools, and Bland offers both routes: Pathways for teams that build their own calls and forward-deployed engineers who build alongside a customer's team on Enterprise.

### Bland overview

Bland is a full stack voice AI provider for enterprises and contact centers running high-stakes inbound and outbound calls at volume. It publishes sub-200ms latency, and its language model is closed source and developed in-house, so no outside AI lab sits in a call.

Teams build calls in [Pathways](https://www.bland.ai/product), which lays a conversation out as connected steps that can be tested before launch. Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland. On [Enterprise](https://www.bland.ai/pricing), branded iMessage agents run natively on the same pathways as voice.

A Bland agent moves from staging to production only when chosen simulated test cases pass chosen judges, and alarms on latency, long silences, transcription quality, and API errors reach a team by email, phone call, or API.

<div class="cmp-proscons cmp-proscons-own"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>One AI company on every call, so a security team reviews one vendor</li><li>One published rate for all of its AI, with no token charges</li><li>#1 of 13 AI voices on Audio Realism Bench, 4 August 2026</li><li>Dedicated orchestration and dedicated GPUs run by Bland, on Enterprise</li><li>Native iMessage agents on Enterprise, sharing pathways with voice</li><li>Staged releases that pause a new agent version when it performs worse than the last</li><li>Alarms on latency, silences, transcription quality, and API errors</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>

### PolyAI overview

PolyAI sells a managed voice and chat agent platform to large consumer-facing companies, from hotels and restaurants to insurers and telcos, and builds and runs the agent for a customer. Its models are a mix: PolyAI says "PolyAI’s proprietary Raven model family is specialized for customer service across voice and chat", and its model list also carries GPT and Claude models from other AI companies.

PolyAI's channels are voice and web chat, and PolyAI says "SMS is only available for voice, so don’t rely on it for other channels". PolyAI doesn't offer iMessage agents.

<div class="cmp-proscons" data-rival="polyai"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>PolyAI builds and runs the agent for a customer</li><li>SOC 2 Type II and ISO 27001 both listed</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Managed agent pricing is quoted per minute, with no public rate</li><li>Models from other AI companies sit on its list next to its own</li><li>No iMessage agents</li></ul></div></div>

### Replicant overview

Replicant sells AI agents for customer service across voice, chat, and SMS to large contact centers, and says it builds them on "multiple, fine-tuned LLMs" without naming a provider. It offers "Contract terms that are best for you, whether month-to-month or multi-year" and an "Agreed-upon business outcome for performance evaluation", so the vendor runs the deployment against a target. Replicant doesn't offer iMessage agents.

<div class="cmp-proscons" data-rival="replicant"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>Vendor-run deployment against an agreed business outcome</li><li>Voice, chat, and SMS from one vendor</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Pricing sits behind a request form, with no published rate</li><li>No model provider is named, so a security team cannot see which AI companies sit behind a call</li><li>No iMessage agents</li></ul></div></div>

### Voiceflow overview

Voiceflow is a platform for building, testing, and deploying chat and phone agents, with playbooks and workflows laid out in a visual studio. It tells buyers to "Avoid model lock-in. Choose from the biggest LLM providers, or bring your own model", and its credits table prices models from Anthropic, Google, Groq, OpenAI, and xAI next to its own voiceflow-core models.

A phone number comes from Voiceflow, Twilio, Vonage, or Telnyx, or a team connects its own phone system over SIP. Voiceflow lists SMS as a Beta feature. Voiceflow doesn't offer iMessage agents.

<div class="cmp-proscons" data-rival="voiceflow"><div class="cmp-proscons-pros"><p><strong>Pros</strong></p><ul><li>A visual studio where a team designs its own agents</li><li>A choice of model providers, or a customer's own model</li></ul></div><div class="cmp-proscons-cons"><p><strong>Cons</strong></p><ul><li>Language model, transcription, and speech come from companies a customer picks</li><li>Phone numbers come from a separate carrier or from Voiceflow, billed apart from the model</li><li>No iMessage agents</li></ul></div></div>

## Which sounds more human, Bland, PolyAI, Replicant, or Voiceflow?

Bland Speech v3 ranked 1st of 13 AI voices at 1365 on Design Arena's Audio Realism Bench of 4 August 2026, above every outside voice that PolyAI names. PolyAI's own voices weren't ranked on that chart.

Design Arena's blind test has vetted native speakers pick whichever of two voices sounds more like a real person. The highest outside voice a PolyAI customer can choose, Cartesia's Sonic 3.5, ranked 6th at 1096. Replicant doesn't disclose its voice model, and Voiceflow's credits table covers speech from ElevenLabs, Cartesia, and others without a model that appears on that chart, so neither has a score here.

Scores come from [Design Arena's published results](https://notes.designarena.ai/audio-realism-benchmark-measuring-realism-in-audio-models/) of 4 August 2026.

## How much do they cost?

Bland's self-serve Start plan costs $0.14 per minute and self-serve Build costs $0.12 per minute with a $299 monthly platform fee, covering all of its AI, while PolyAI and Replicant quote a price and Voiceflow bills credits, as of November 2026. Phone sits on top of every one of them. Enterprise pricing is custom, set with Bland's sales team.

### Bland pricing

Bland publishes one number per plan, and it covers the language model, transcription, and speech with no token charges. Phone is billed separately, on a customer's own carrier or on Bland's at pass-through cost, as are transfer minutes and a $0.015 minimum on each outbound attempt using Bland's telephony.

Warm transfer, a BAA, and dedicated GPUs run by Bland sit on Enterprise.

### PolyAI pricing

PolyAI prices its managed agent per minute and publishes no rate: its pricing says "Ongoing use of the voice agent is priced on a per-minute basis" beside a form to talk to its team. Its Dialog-RSN-1 Model API lists at 2¢ per connected minute with 10 included concurrent calls, and PolyAI says "Telephony and orchestration Not included".

Two billing rules sit in PolyAI's own paper. Its managed-service agreement says "the total handle time is rounded up to the next 30-second increment", while the Model API bills "connected time, with no minimums and no rounding up to the minute".

### Replicant pricing

Replicant publishes no rate. Replicant calls its pricing "straightforward, pay-as-you-go" and offers one route to a number, a Request Pricing form, with contract terms that run month-to-month or multi-year.

### Voiceflow pricing

Voiceflow sends businesses to "Request pricing" and offers agencies a free trial with usage-based billing. Its credits table lists $0.05 per phone minute and $0.005 per chat message on Voiceflow's own line, and says "Every interaction, from chat messages to LLM calls to voice minutes, consumes a certain number of credits depending on the vendor and model you use".

The language model, transcription, and speech each carry their own line by vendor, so the phone-minute figure is one part of a minute's bill, not the whole of it. On Enterprise, Voiceflow charges 10 credits per phone minute, and a credit has no dollar value in that table.

### What does each Bland plan include?

Enterprise is the plan regulated teams buy. It adds native iMessage agents alongside SMS and web chat, warm transfers, guardrails, a BAA, SSO, data residency, dedicated orchestration with dedicated GPUs run by Bland, and forward-deployed engineers who work beside a customer's team, with concurrency contracted to its volume and custom pricing.

| Included | Self-serve: Start | Self-serve: Build | Enterprise (custom) |
|---|---|---|---|
| Price per minute | $0.14 | $0.12 | Custom |
| Platform fee | $0 | $299 a month | Contracted to volume |
| Transfer time per minute | $0.05 | $0.04 | Custom |
| Concurrent calls | 10 | 50 | Custom |
| Calls a day | 100 | 2,000 | Unlimited |
| Knowledge bases | 10 | 50 | Unlimited |
| Voices | 1 | 5 | Unlimited |
| Uptime SLA | 99.9% | 99.9% | 99.9% |
| Pathways, integrations, and automations | Yes | Yes | Yes |
| iMessage, SMS, and web chat | No | No | Yes |
| Warm transfers and guardrails | No | No | Yes |
| BAA, SSO, and data residency | No | No | Yes |
| Dedicated orchestration and GPUs | No | No | Yes |
| Forward-deployed engineers | No | No | Yes |

## How do they handle security and uptime?

Bland, PolyAI, Replicant, and Voiceflow all report SOC 2 Type II, and they part ways on medical calls, card payments, and where an agent can run.

PolyAI says it "has achieved SOC 2 Type II compliance" and "We are certified for ISO/IEC 27001", and says its systems are "designed to meet" HIPAA. On card data it says it is "committed to complying with the PCI-DSS".

Replicant lists "SOC 2 Type 2, PCI DSS, HIPAA certifications" and says its platform is "fully aligned" with GDPR. Voiceflow lists SOC 2 Type II, ISO 27001, GDPR, and HIPAA, each with a compliance link of its own, and says it "does not use customer data to train any machine learning or AI models".

Bland includes a BAA on Enterprise. Its [security program](https://www.bland.ai/trust-security) self-attests to [PCI DSS](https://www.pcisecuritystandards.org/standards/pci-dss/) v4.0.1 and holds FedRAMP 20x Class A, and Bland offers a 99.9% uptime SLA on every plan. Bland's pages on [HIPAA compliant voice AI](/hipaa-compliant-voice-ai) and [PCI compliant voice AI](/pci-compliant-voice-ai) go further.

Bland also runs its own SIP signaling and media servers, so every call is set up, hosted, and processed on Bland infrastructure with no third-party telephony provider in the path.

![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)

## Which should a team pick?

A team that wants one AI company on each call, dedicated orchestration with dedicated GPUs run by Bland, published rates, and the top-ranked voice on Design Arena's August 2026 chart should pick Bland, with more than 250 enterprise customers and over 1.3 billion calls handled. Bland's published rates cover all of its AI, and forward-deployed engineers work beside a customer's team on Enterprise.

<div class="cmp-usewhen"><div class="cmp-usewhen-own"><p><strong>Use Bland when</strong></p><ul><li>A team wants dedicated orchestration and dedicated GPUs run by Bland</li><li>A security team wants to review one AI company, not a chain of them</li><li>A team wants a published rate for all of its AI</li><li>Callers need the most realistic voices</li></ul></div><div><p><strong>Use PolyAI when</strong></p><ul><li>A large consumer-facing company hands PolyAI the build and run of its agent</li><li>A team requests a quoted per-minute price through a form</li></ul></div></div>

<div class="cmp-usewhen"><div class="cmp-usewhen-own"><p><strong>Use Replicant when</strong></p><ul><li>A large contact center agrees a business outcome with the vendor and manages its contract against it</li><li>A team takes voice, chat, and SMS from one vendor and requests pricing through a form</li></ul></div><div><p><strong>Use Voiceflow when</strong></p><ul><li>A customer experience team designs agents in a visual studio, with playbooks and workflows it maintains</li><li>A team already has its own model providers and phone carrier, and manages each bill</li></ul></div></div>

### What results look like with Bland

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

### How was this comparison made?

Bland, PolyAI, Replicant, and Voiceflow were compared on who builds the AI, price per minute with each basis stated, channels, security, and voice realism, using each company's own pricing, security, channel, and documentation pages as of November 2026. Voice scores come from Design Arena's chart of 4 August 2026.

### Related comparisons

- Bland against one rival: [Bland vs PolyAI](/compare/bland-vs-polyai)
- Reviews and alternatives: [PolyAI review](/blog/bland-ai-vs-poly-ai), [Best PolyAI alternatives](/blog/polyai-alternatives), and [Best Voiceflow alternatives](/blog/voiceflow-alternatives)
- More group comparisons: [Bland vs Retell vs Vapi vs Air](/blog/bland-ai-vs-retell-vs-vapi-vs-air), [Synthflow vs Fin vs Chatbase](/blog/bland-vs-synthflow-vs-fin-vs-chatbase), and [Zendesk AI vs Fin](/blog/bland-vs-zendesk-vs-fin)
- Provider pages: [AI voice agent alternatives by provider](/alternatives)
- All pages: Bland's [comparison hub](/compare)

## Frequently asked questions

### Which is best for enterprises, Bland, PolyAI, Replicant, or Voiceflow?

Bland is the better choice for enterprise calls at volume because it is full stack and publishes one self-serve rate for all of its AI. Enterprise customers get dedicated orchestration and dedicated GPUs run by Bland. PolyAI and Replicant sell quoted, vendor-run agents, and Voiceflow is a visual studio for building agents.

### Which of the four is cheapest per minute?

None of the four can be ranked on a headline figure. PolyAI and Replicant publish no managed-agent rate, Voiceflow's $0.05 is its own phone line before model, transcription, and speech lines, and Bland's $0.14 on self-serve Start or $0.12 on self-serve Build covers all of its AI before phone.

### 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. PolyAI's Model API says "Telephony and orchestration Not included", and Voiceflow connects numbers from Twilio, Vonage, Telnyx, or its own SIP route.

### Does PolyAI, Replicant, or Voiceflow support iMessage?

PolyAI doesn't offer iMessage agents, Replicant doesn't offer iMessage agents, and Voiceflow doesn't offer iMessage agents, as of November 2026. Bland runs branded iMessage agents natively on Enterprise, which send and receive photos, videos, files, voice memos, and tapbacks, and share the same pathways as its voice agents.

### Which of the four are HIPAA compliant?

PolyAI says its systems are "designed to meet" HIPAA, while Replicant and Voiceflow have HIPAA, and Bland includes a BAA on Enterprise.

### Which has the most realistic voice?

Bland, on Design Arena's chart of 4 August 2026, where Bland Speech v3 ranked 1st of 13 AI voices at 1365 and Cartesia's Sonic 3.5, the highest outside voice PolyAI names, ranked 6th at 1096. Replicant and Voiceflow have no voice on that chart.

### 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.

### 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.