Hexel vs Voiceflow
Hexel
hexelstudio.com
Voiceflow
voiceflow.comSide by side
| Figure | Hexel | Voiceflow |
|---|---|---|
| Price from | Free | $81/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 7 |
| Spec score · AI Agent Platforms | 7.6 (#42) | 8.7 (#10) |
| Founded | 2024 | 2019 |
| Integrations | The home page lists LangChain, LlamaIndex, CrewAI, AutoGen, OpenAI, Anthropic, Vercel AI, Pydantic AI, Temporal, Kubernetes, Python, and TypeScript as part of the agent stack it works with. | Native connectors include Zendesk, Salesforce, HubSpot, Shopify, Airtable, Google Sheets, Gmail and Twilio. |
| Intended users | The Scale tier is described for high-throughput, multi-team deployments, and Enterprise for regulated, mission-critical fleets. | The product is presented for CX and support leaders, engineers, enterprise teams, and agencies or partners building agents for clients. |
| Observability | Hexel records plans, decisions, and tool calls as trace graphs, attributes compute spend by fleet, task, and team, and supports replay of runs. | The platform records transcripts and call recordings and provides evaluations, tests and runtime analytics. |
| Product | Hexel describes itself as a governed runtime for production AI agent fleets, positioned between agents and the systems they act on. | Voiceflow is a platform for building, testing, deploying, and monitoring chat and voice agents across channels and languages. |
| Support | Scale includes priority support, while Enterprise includes solutions engineering and a dedicated SLA. | Official documentation directs users to Voiceflow support by email and offers enterprise product demos. |
Plans
Voiceflow
- Agencies & PartnersFree
- StarterFree
- Pro$120 a month
- Business$500 a month
- Pro$972 a year
- BusinessesPriced on request
- EnterprisePriced on request
In their own words
Voiceflow
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.