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Voiceflow

voiceflow.com

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Spec score 9.5 #1 of 257 in Chatbot Builders

What it is

Voiceflow is a platform for building, testing, deploying, and monitoring chat and voice agents across channels and languages. Its builder combines agentic playbooks, deterministic workflows, shared instructions, and guardrails. Teams can review transcripts and call recordings, run evaluations and tests, and track analytics. Agents can reach users through a native chat widget, mobile apps, phone calls, SMS, or custom interfaces built with the Conversations API. Native integrations include Zendesk, Salesforce, HubSpot, Shopify, Airtable, Google Sheets, Gmail, and Twilio. Agents can also connect to external REST APIs, custom Functions, and MCP servers. Teams can choose from major LLM providers or bring their own model. Voiceflow says customer data is not used to train AI or machine-learning models and integrated model providers are configured for zero data retention. Its security information describes encryption at rest with customer-managed keys and encryption in transit using TLS and mTLS. The company was founded in 2019. Agencies and partners have a free-trial plan with usage-based billing; business pricing is available on request. Support includes implementation that can be self-serve or fully managed.

Spec sheet

What it does
Voiceflow provides tools to build, test, deploy and monitor customer-facing chat and voice agents across channels and languages.Read 14 Oct 2026 · voiceflow.com
Product
Voiceflow is a platform for building, testing, deploying, and monitoring chat and voice agents across channels and languages.Read 9 Oct 2026 · voiceflow.com
Intended users
The product is presented for CX and support leaders, engineers, enterprise teams, and agencies or partners building agents for clients.Read 9 Oct 2026 · voiceflow.com
Integrations
Native connectors include Zendesk, Salesforce, HubSpot, Shopify, Airtable, Google Sheets, Gmail and Twilio.Read 14 Oct 2026 · voiceflow.com
Support
Official documentation directs users to Voiceflow support by email and offers enterprise product demos.Read 14 Oct 2026 · voiceflow.com
License
Voiceflow, Inc.'s terms grant a revocable, nonexclusive service license and restrict copying and reverse engineering, indicating the hosted product is proprietary.Read 14 Oct 2026 · voiceflow.com
Founded
2019Read 23 Sep 2026 · voiceflow.com
Agent builder
The builder combines global instructions, visual playbooks, deterministic workflows and knowledge bases.Read 14 Oct 2026 · voiceflow.com
Agent building
The platform combines agentic playbooks, deterministic workflows, global instructions, and guardrails.Read 9 Oct 2026 · voiceflow.com
AI bot generation
YesRead 20 Sep 2026 · voiceflow.com
AI data privacy
Voiceflow says customer data is not used to train models and connected model providers are configured for zero data retention.Read 14 Oct 2026 · voiceflow.com
API scope
The REST API supports agent construction, conversations, publishing through environments, transcripts, evaluations, tests, analytics and webhooks.Read 14 Oct 2026 · voiceflow.com
Channels
Agents can be deployed through web chat, mobile interfaces, telephony, SMS and custom interfaces using the Conversations API.Read 14 Oct 2026 · voiceflow.com
CLI and authentication
A personal access token authenticates the REST API, vf command-line interface and MCP server.Read 14 Oct 2026 · voiceflow.com
Company customers
Voiceflow's About page reports more than 3,000 customers and over 1 billion agent messages processed.Read 14 Oct 2026 · voiceflow.com
Company facts
LinkedIn lists Voiceflow as founded in 2019, headquartered in San Francisco and employing 201–500 people.Read 14 Oct 2026 · ca.linkedin.com
Company history
The company says it began with Alexa and Google interactive-story experiments in a dorm room and later expanded to voice, chat and connected-device experiences.Read 14 Oct 2026 · voiceflow.com
Data privacy
Voiceflow says it does not use customer data to train machine learning or AI models and that integrated model providers are configured for zero data retention.Read 9 Oct 2026 · voiceflow.com
Data protection
The security page describes encryption at rest with customer-managed keys and encryption in transit using TLS and mTLS.Read 9 Oct 2026 · voiceflow.com
Deployment channels
multichannelRead 20 Sep 2026 · voiceflow.com
Documentation
Documentation includes quickstarts, API reference, deployment guides, widgets, telephony, SMS, testing, analytics and billing material.Read 14 Oct 2026 · voiceflow.com
Extensibility
Agents can call REST APIs, custom Functions and Model Context Protocol servers in addition to native integrations.Read 14 Oct 2026 · voiceflow.com
Funding
A 2024 company release announced a $15 million OpenView-led round at a $105 million valuation and $35 million total raised.Read 14 Oct 2026 · voiceflow.com
Human handoff
YesRead 20 Sep 2026 · voiceflow.com
Knowledge base
Knowledge bases can connect agent answers to imported information and services such as Zendesk and Shopify.Read 14 Oct 2026 · voiceflow.com
Limit: CloudTalk review
CloudTalk reports confusing usage credits, agents stopping when credits run out, demo-gated public pricing, third-party requirements for phone agents and a steeper learning curve for advanced work.Read 14 Oct 2026 · cloudtalk.io
Limit: CXLead review
CXLead identifies limited human handoff, less depth in analytics than traditional contact-center tools and technical skill requirements for advanced logic.Read 14 Oct 2026 · thecxlead.com
Limit: G2 complaints
Reviewers report production-launch problems, slow support responses, quickly consumed model tokens, high pricing, difficult knowledge-base integration and slow loading on complex projects.Read 14 Oct 2026 · g2.com
Limit: Trustpilot complaints
Negative reviewers describe unresolved technical problems and difficulty obtaining helpful support.Read 14 Oct 2026 · trustpilot.com
Limit: TrustRadius review
The detailed TrustRadius review mentions interface bugs, inadequate DTMF testing, speech-to-text limitations and a need for more languages.Read 14 Oct 2026 · trustradius.com
Measurement
Teams can review transcripts and call recordings, run evaluations and tests, and track analytics.Read 9 Oct 2026 · voiceflow.com
Model choice
Voiceflow says teams can choose from major LLM providers or bring their own model.Read 9 Oct 2026 · voiceflow.com
Observability
The platform records transcripts and call recordings and provides evaluations, tests and runtime analytics.Read 14 Oct 2026 · voiceflow.com
Praise: G2 reviewers
Reviewers repeatedly praise the visual builder, rapid prototyping, integrations, model choice and API flexibility.Read 14 Oct 2026 · g2.com
Praise: Trustpilot reviewers
Positive reviewers describe Voiceflow as easy to learn, feature-rich, reliable and useful for rapid prototyping with integrations.Read 14 Oct 2026 · trustpilot.com
Rating on G2
4.5 out of 5 from 115 reviews.Read 14 Oct 2026 · g2.com
Rating on Trustpilot
4.1 out of 5 from 15 reviews.Read 14 Oct 2026 · trustpilot.com
Rating on TrustRadius
10 out of 10 from 2 reviews.Read 14 Oct 2026 · trustradius.com
Reliability incidents
IsDown records 30 incidents since January 2025 and lists recent outages involving Atlas, environment creation and knowledge-base retrieval.Read 14 Oct 2026 · isdown.app
Security certifications
Voiceflow states that it is SOC 2 Type II audited, ISO/IEC 27001:2022 certified, GDPR compliant and HIPAA compliant.Read 14 Oct 2026 · voiceflow.com
Security controls
The security page describes encryption at rest and in transit, customer-managed keys, multi-region backups, vulnerability scanning, penetration tests, SSO, WAF and DDoS protection.Read 14 Oct 2026 · voiceflow.com
Security news
Voiceflow said a November 2025 sha1-hulud NPM supply-chain incident did not access customer data or environments and that mitigations were applied.Read 14 Oct 2026 · voiceflow.com
Self-hosting
An official Voiceflow V2 article describes an enterprise dialog engine that can be self-hosted on internal infrastructure.Read 14 Oct 2026 · voiceflow.com
Service scale
The integrations page claims 99.95% agent uptime, 50 ms latency and capacity of 300,000 messages per minute.Read 14 Oct 2026 · voiceflow.com
Visual flow builder
YesRead 20 Sep 2026 · voiceflow.com

Plans and prices

Agencies & Partners Free Free trial, no credit card required · Usage-based billing · Multi-client workspace management · White-labeling and client handoff tools · Access to major model providers Read 9 Oct 2026 · voiceflow.com
Starter Free 100 credits/month Read 14 Oct 2026 · voiceflow.com
Pro $120 a month $120/mo 20,000 credits/month Read 14 Oct 2026 · voiceflow.com
Business $500 a month $500/mo 100,000 credits/month Read 14 Oct 2026 · voiceflow.com
Pro $972 a year $972/yr 180,000 credits/year Read 14 Oct 2026 · voiceflow.com
Businesses Priced on request Request pricing · Self-serve or managed implementation support · Voice and chat deployment · Real-time observability and analytics · Team roles and permissions Read 9 Oct 2026 · voiceflow.com
Enterprise Priced on request Contact sales Custom enterprise deployment and support Read 14 Oct 2026 · voiceflow.com

Every Voiceflow plan and price →

Strong points and limits

Strong points

  • Deploys through chat, mobile, phone, SMS, and APIs
  • Connects to REST APIs, Functions, and MCP servers
  • Offers analytics, evaluations, and transcript review
  • Lists SOC 2 Type II and ISO/IEC 27001:2022

Limits

  • Business pricing is available on request
  • Agency plan uses usage-based billing
  • No maker headquarters is stated

Who it suits

Voiceflow is presented for CX and support leaders, engineers, enterprise teams, and agencies or partners building agents for clients. It fits teams that need to deploy agents across multiple channels and monitor their performance.

Voiceflow in depth

Read the full write-up

Voiceflow is a platform for building and operating chat and voice agents. It is a strong fit for support teams and agencies that need to deploy across several channels; businesses should be prepared to request custom pricing.

Overview

Voiceflow brings visual agent building together with testing, deployment, and monitoring. Its combination of agentic playbooks and deterministic workflows gives teams room for open-ended conversation while retaining more controlled paths, instructions, and guardrails. That balance suits customer experiences where an agent must be flexible without abandoning defined processes.

The platform grew from interactive stories for Alexa into tools for voice, chat, connected devices, and customer experiences. Today, teams can deploy agents through a chat widget, mobile apps, phone calls, SMS, or custom interfaces built with the Conversations API, and work across languages. The breadth is useful for teams managing multiple customer touchpoints, but may be more than a single-channel chatbot project needs.

Key features

Alongside a visual builder and AI agent generation, Voiceflow supports knowledge-grounded answers and human handoff. Together, those features let teams automate routine questions while preserving a route to human support when automation is insufficient. Integrations with Zendesk, Salesforce, HubSpot, Shopify, Airtable, Google Sheets, Gmail, and Twilio cover common customer and business systems; REST APIs, custom Functions, and MCP servers extend that reach.

Teams can choose a major LLM provider or bring their own model. For ongoing oversight, they can review transcripts and call recordings, run evaluations and tests, and track analytics. This makes Voiceflow relevant beyond initial bot construction: teams that need to assess and refine agent behavior have measurement tools within the same platform.

Voiceflow says it does not use customer data to train AI or machine-learning models, and that connected model providers are configured for zero data retention. Its security materials describe encryption at rest with customer-managed keys and encryption in transit with TLS and mTLS; the integrations page cites SOC 2 Type II and ISO/IEC 27001:2022 and states GDPR and HIPAA compliance. These are meaningful considerations for enterprise deployments, though teams should confirm that a particular implementation meets their own requirements.

Pricing

Agencies & Partners is free and starts with a free trial that requires no credit card. It includes usage-based billing, multi-client workspace management, white-labeling and client handoff tools, and access to major model providers. This is the clearest starting point for agencies building agents for clients, but usage-based charges mean the free entry price is not a promise of ongoing cost-free operation.

Businesses has custom pricing. It includes self-serve or managed implementation support, voice and chat deployment, real-time observability and analytics, and team roles and permissions. This is the more relevant plan for organizations that need managed rollout or team controls, but the lack of a set price makes budget comparison difficult before requesting a quote. Support is also available through [email protected].

Platforms

Voiceflow supports Android, iOS, web, and API. Its deployment channels extend to phone calls and SMS as well as native chat and mobile apps, so it suits teams seeking a common agent platform across customer touchpoints. The API option also accommodates custom interfaces.

Who it's for

Voiceflow is aimed at CX and support leaders, engineers, enterprise teams, and agencies or partners. Agencies get client-management and white-label handoff tools; business teams get deployment, observability, analytics, and permission controls. A small project that needs only a basic chatbot may not benefit from that breadth, particularly if predictable upfront pricing is a priority.

Pros and cons

Pros: Multiple deployment channels, model choice, and integrations support varied customer experiences without limiting teams to a single interface.

Pros: Transcript and recording review, evaluations, tests, and analytics support ongoing improvement as well as launch.

Pros: Agency-specific workspace and white-label tools suit teams delivering agents to multiple clients.

Cons: Businesses must request custom pricing, making costs harder to compare in advance.

Cons: Agency usage-based billing can make spend depend on activity rather than a fixed listed price.

Alternatives

Consider LiveKit Agents if a free monthly plan and broader platform coverage, including self-hosted and desktop systems, better match your deployment needs. Rapida AI offers a free Launch plan for one agent with bring-your-own speech and language components and 10-day observability retention; it may suit teams that want to assemble those pieces themselves.

Intervo is an option for teams seeking self-hosted, open-source software under an MIT License. Pipecat is worth considering when a free platform and usage-based cloud hosting are a better fit. Retell AI offers pay-as-you-go voice agents with per-minute pricing and free credits, which may suit a voice-first project seeking a stated usage price.

Tone may suit teams that prefer a self-hosted option with unlimited agents, calls, and workflows and bring their own model, voice, and telephony. Vapi offers a free starting plan with per-minute hosting and model costs passed through, an alternative for teams comfortable with that billing structure. Yellow.ai has a free plan with monthly usage and agent limits, which may suit teams whose needs fit within those caps.

For category comparisons, browse AI Voice Agents, AI Customer Service Agents, Conversational AI Platforms, Chatbot Builders, and AI Agent Platforms.

Verdict

Choose Voiceflow if your team needs to build and manage agents across channels, with integrations, model flexibility, and tools for measuring behavior after deployment. Agencies have a client-oriented trial entry point, while businesses should look elsewhere if they need a transparent fixed price before starting a conversation.

Verdict

Voiceflow covers agent building, testing, deployment, and monitoring across several channels, with integrations and model choices. Agencies and partners have a free-trial plan; business pricing requires a request.

Where Specifiction places it

Alternatives to VoiceflowAll alternatives →