Vapi vs Voiceflow
Vapi (Dev-first API platform, full pipeline control) and Voiceflow (Agent builder (chat + voice)) are Voice AI platforms, priced from $0.05/min and $0.05/min respectively. Below: the bottom line, verified head-to-head facts, and real production costs.
Vapi suits dev-first teams on a budget: no platform fee versus Voiceflow's estimated $60 per month, 10 concurrent calls versus 5, native SIP trunking, and LLM and TTS passthrough at cost keeping real expenses between $0.05 and $0.17 per minute. Voiceflow suits enterprise or compliance-focused teams: SOC 2 Type II certified versus no equivalent from Vapi, full white-label versus Vapi's partial offering, and no annual contract required for best pricing. These are different profiles, and neither is a single clear winner.
It is close, and the right pick depends on your use case. Start a free trial, or read the verdicts below.
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Head-to-head facts
Every row independently verified| Fact | Vapi | Voiceflow |
|---|---|---|
| Base price / min | ~$0.05Jul 15 | $0.05Jul 15 |
| Real production cost / min | ~$0.05-0.17Jul 15 | n/a |
| HIPAA BAA on base plan | ◑ Paid add-onJul 15 | n/a |
| Native SIP trunking | ✓ YesJul 15 | n/a |
| Concurrency limit (base) | ~10 callsJul 15 | 5Jul 15 |
| Median e2e latency | ~600 msJul 15 | n/a |
| Bring-your-own LLM | ✓ YesJul 15 | ✓ YesJul 15 |
| Free tier credit | 60+ minutes includedJul 15 | Free trial, no credit card requiredJul 15 |
Pricing: true cost at 3 usage tiers
All-in monthly: platform fee + per-minute + telephony. Assumes GPT-4o class model, ElevenLabs voice.Verdicts by use case
For a no-code agency white-label resale use case, Voiceflow offers full white-label support and sub-accounts versus Vapi's only partial white-label support. Both platforms have no-code builders and self-serve signup, but full white-label capability is a decisive differentiator for agencies reselling to clients. Voiceflow's estimated $60/mo platform fee is a cost consideration, but Vapi's partial white-label is a functional gap that outweighs pricing for this specific use case.
For engineering teams needing custom pipeline control, Vapi's API-first architecture, native SIP trunking, DTMF/IVR support, bring-your-own LLM, bring-your-own TTS, and LLM/TTS cost passthrough at cost give it a more complete low-level control surface. Vapi also offers 10 base concurrent calls versus Voiceflow's 5, and a $0/mo platform fee versus Voiceflow's estimated $60/mo, lowering the barrier to custom builds. Both platforms are API-first, but Vapi's native SIP trunking and richer telephony integrations, including Twilio and Telnyx, more directly support pipeline customization for engineering teams.
For ecommerce support, native integrations matter greatly. Voiceflow lists Zendesk, Shopify, and APIs as native integrations, covering core ecommerce platforms. Vapi lists GHL, Twilio, Zapier, and Make, but no direct ecommerce platform integrations. Voiceflow also holds SOC 2 Type II certification, which supports trust when handling customer order data. Both share similar base pricing at $0.05 per minute, though Vapi adds a $0 per month platform fee versus Voiceflow's estimated $60 per month, narrowing the gap slightly. Voiceflow's native Shopify and Zendesk integrations are the deciding factor for order and support flows.
For HIPAA-bound healthcare workflows, compliance posture is decisive. Voiceflow holds SOC 2 Type II certification, signaling a mature security controls framework that healthcare buyers require. Vapi has no SOC 2 Type II and offers HIPAA BAA only as a paid addon, adding cost and friction. Voiceflow's SOC 2 Type II status makes it the safer baseline for healthcare compliance without requiring extra negotiation or fees, giving it the edge in this use case.
Both tools support native outbound campaigns, but Vapi edges ahead on cost structure and infrastructure. Vapi carries a $0/mo platform fee versus Voiceflow's estimated $60/mo, lowering overhead for high-volume outbound. Vapi also includes 10 concurrent calls on the base tier versus Voiceflow's 5, directly impacting campaign throughput. Native SIP trunking and number provisioning further reduce friction for call-center deployments. Both offer BYO-LLM and no-code builders, so the advantage comes down to concurrency, cost, and telephony depth.
For an SMB receptionist and booking use case, cost structure and concurrency matter most. Vapi has a $0/mo platform fee versus Voiceflow's estimated $60/mo, making it more accessible for an SMB. Vapi also includes 10 concurrent calls on the base plan versus Voiceflow's 5, which matters for after-hours coverage spikes. Vapi offers native SIP trunking, warm transfer to human, DTMF/IVR, and number provisioning in-platform, all practical for a receptionist workflow. The margin is narrow because Voiceflow holds SOC 2 Type II certification and full white-label support, which some SMBs may value.
Common questions
What is the base price per minute for Vapi vs Voiceflow?+−
Both tools share a base price of $0.05 per minute. However, Vapi's real production cost rises to between $0.05 and $0.17 per minute once LLM and TTS usage is factored in, with those costs passed through at cost. Note that the Voiceflow figure is an estimate, not a vendor-confirmed rate.
Does Vapi or Voiceflow charge a monthly platform fee?+−
Vapi charges $0 per month as a platform fee. Voiceflow's estimated monthly platform fee is $60 per month. If you want to avoid a recurring seat or platform charge, Vapi has the edge, though the Voiceflow figure is estimated rather than vendor-confirmed.
Which tool is HIPAA compliant and SOC 2 certified?+−
Voiceflow holds SOC 2 Type II certification, while Vapi does not. For HIPAA, Vapi offers a BAA only as a paid add-on, not on the base plan. For teams where compliance certifications are a hard requirement, Voiceflow presents a stronger out-of-the-box posture.
How many concurrent calls does each platform support on the base plan?+−
Vapi includes 10 concurrent calls on its base plan, while Voiceflow's estimated base concurrency is 5 calls. For usage beyond the base limit, Vapi charges $10 per month for each additional concurrent line.
Can I bring my own LLM and TTS voice to either platform?+−
Both Vapi and Voiceflow support bring-your-own LLM. Vapi also explicitly supports bring-your-own TTS voice. This gives developers flexibility to control model costs and voice quality rather than being locked into platform defaults.
Do Vapi and Voiceflow offer a free trial or free tier?+−
Vapi includes 60 or more free minutes according to vendor claims. Voiceflow offers a free trial with no credit card required. Both platforms support self-serve signup, so you can start testing without contacting sales.
Which platform is better for agencies needing white-label or sub-accounts?+−
Voiceflow offers full white-label and sub-account support, while Vapi provides only partial white-label capability. If reselling or managing multiple client accounts under your own brand is a priority, Voiceflow is the more complete offering.
What are the key native integrations for Vapi vs Voiceflow?+−
Vapi natively integrates with GHL, Twilio, Telnyx, Slack, Google Calendar, Zapier, and Make. Voiceflow's native integrations include Zendesk, Shopify, APIs, and MCP servers. The two platforms serve different ecosystem priorities, so check which integrations match your stack.
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