Vapi vs Voiceflow
Two of the most-asked-about agents in the voice-agents space. Here's how they actually stack up.
Vapi
Developer-focused voice AI platform for building production-grade voice agents via API
Free tier
Read full review →Voiceflow
No-code platform for building, testing, and deploying conversational AI agents across voice and chat
Free + $50/mo
Read full review →Side-by-side comparison
| Vapi | Voiceflow | |
|---|---|---|
| Tagline | Developer-focused voice AI platform for building production-grade voice agents via API | No-code platform for building, testing, and deploying conversational AI agents across voice and chat |
| Pricing | Free tier | Free + $50/mo |
| Categories | voice-agents, api, conversational-ai | voice-agents, conversational-agents, no-code |
| Made by | Vapi | Voiceflow Inc. |
| Launched | 2022 | 2019-06 |
| Platforms | API, Web, Phone | Web |
| Status | active | active |
Vapi highlights
- + Real-time streaming voice with sub-500ms response latency on most configurations
- + Bring your own LLM: works with OpenAI, Anthropic, Groq, Together, and local models
- + Bring your own STT and TTS providers including Deepgram, ElevenLabs, and Play.ht
- + Phone number provisioning and outbound/inbound call management via API
- + Function calling and tool use for external integrations mid-conversation
Voiceflow highlights
- + Visual conversation flow builder with drag-and-drop design
- + Knowledge base integration for FAQ and document-grounded responses
- + Multi-channel deployment to web chat, Twilio voice, SMS, and custom APIs
- + Built-in AI response generation with configurable LLM backends
- + Analytics dashboard showing conversation completion, drop-off, and escalation rates
Frequently Asked Questions
Which is better, Vapi or Voiceflow?
Neither is universally better. Vapi (Free tier) leans into voice-agents, while Voiceflow (Free + $50/mo) is closer to voice-agents. Pick based on which workflow you actually do every day.
What is the price difference between Vapi and Voiceflow?
Vapi is free tier. Voiceflow is free + $50/mo. See the pricing row in the comparison table.
Can I use Vapi and Voiceflow together?
In most cases, yes. They serve overlapping but distinct needs, so running them side by side is common until you decide which fits your workflow.