OpenServe vs Voiceflow
OpenServe
openserve.app
Voiceflow
voiceflow.comSide by side
| Figure | OpenServe | Voiceflow |
|---|---|---|
| Price from | $600/mo | $81/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 21 | 7 |
| Spec score · AI Customer Service Agents | 8.0 (#14) | 8.7 (#1) |
| Spec score · Chatbot Builders | 7.9 (#150) | 9.5 (#1) |
| Deployment channels | website | multichannel |
| Knowledge-base answers | Yes | Knowledge bases can connect agent answers to imported information and services such as Zendesk and Shopify. |
| License | OpenServe says it is MIT licensed and invites users to inspect, contribute to, or fork the source code. | Voiceflow, Inc.'s terms grant a revocable, nonexclusive service license and restrict copying and reverse engineering, indicating the hosted product is proprietary. |
| Support | The Self-Hosted plan lists community support, while both hosted plans list priority support. | Official documentation directs users to Voiceflow support by email and offers enterprise product demos. |
| What it does | OpenServe is an open-source AI customer support platform that provides answers grounded in a business’s documentation. | Voiceflow provides tools to build, test, deploy and monitor customer-facing chat and voice agents across channels and languages. |
Plans
OpenServe
- BYOK Hosted$600 a month
- BYOK Hosted setupPrice not published
- BYOK Hosted setupPriced on request
- Managed$600 a month
- Managed setupPriced on request
- Managed setupPrice not published
- Managed token usage — Claude Opus 4.8 inputPriced on request
- Managed token usage — Claude Opus 4.8 inputPrice not published
- Managed token usage — Claude Opus 4.8 outputPriced on request
- Managed token usage — Claude Opus 4.8 outputPrice not published
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
OpenServe
OpenServe is an open-source AI customer support platform that answers questions using a business’s documentation. Its retrieval-based answers include citations so customers can check the sources. The knowledge base accepts PDFs, websites, and FAQs, which it chunks and embeds automatically. OpenServe supports OpenAI, Anthropic, Mistral, and local models, and customers can bring their own API keys. A chat widget can be added to a website with one script tag and customized to match a brand. The connector marketplace lists Shopify, Zendesk, and e-conomic, and customers can build connectors with the SDK. Deployment is available through Docker Compose self-hosting or a hosted option where OpenServe handles infrastructure, updates, and scaling. The service describes GDPR by design, EU-hosted infrastructure, encryption at rest, and a full audit trail. The Self-Hosted plan lists unlimited conversations and community support; hosted plans list no conversation limit and priority support. OpenServe says it is MIT licensed and built in Denmark.
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.