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    Vapi AI

    3D

    Vapi is a developer-first voice AI platform for building and deploying conversational voice agents at scale. It provides orchestration, real-time monitoring, and configuration tools that let engineering teams assemble custom voice stacks using their own LLM, TTS, STT, and telephony providers. It targets enterprise use, supports millions of calls with sub-500ms latency, and offers SOC 2, HIPAA, and PCI compliance.

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    Features & details

    Full overview from our catalog (read-only reference).

    Category (short)
    3D
    Category
    3D
    Pricing (CSV)
    Free Trial
    Directory pricing
    Freemium
    Sponsored note
    no
    Target audience
    Developers & engineers
    Best for
    Engineering teams building custom voice AI stacks, Enterprises requiring SOC 2, HIPAA, or PCI compliance, Call centres and BPOs automating high-volume voice interactions, Technical founders who want full programmatic control
    Pricing notes
    Pay-as-you-go: $0.05/min (platform fee only). Plus separate LLM, TTS, STT, and telephony costs Growth: $99/month + $0.05/min (~1,000 included minutes + priority support) Enterprise: Custom pricing (SLA, dedicated CSM) HIPAA add-on: $2,000/month Zero data retention: $1,000/month True all-in cost estimate: $0.13–$0.31/min depending on provider stack

    Pros & cons

    Editorial notes to help compare fit before opening the vendor site.

    Pros

    • Developer-friendly API-first approach
    • Flexible provider choice (BYOK model)
    • Strong enterprise security (SOC 2, HIPAA, PCI)
    • Sub-500ms latency for real-time conversations
    • Supports millions of concurrent calls
    • Real-time monitoring dashboards

    Cons

    • G2 shows only 4.2/5 with very few reviews
    • Trustpilot shows 2.4/5 with billing complaints
    • Hidden costs not clear in pricing
    • Glitchy performance reported by some users
    • High latency issues in live calls (contradicts marketing)
    • Poor support for non-enterprise users
    • Difficult cancellation process reported
    • One review claimed $50K in damages from downtime

    Review notes

    Context from the listing review and editorial research.

    Engineering teams favour the developer-friendly approach, flexible provider choice, and strong integrations. However, Trustpilot reviews (2.4/5) cite serious issues: billing hidden costs, glitchy performance, high latency in live calls, poor support for non-enterprise users, and difficult cancellations. One review claimed $50K in damages from platform downtime. G2 shows 4.2/5 but with very few reviews. Mixed reception—enterprise engineering teams like the flexibility, but smaller users report significant issues.

    Extended features

    In-depth description and capability notes.

    Orchestration engine manages conversation flow, voice, telephony, and integrations Bring your own keys (BYOK) flexibility to use preferred LLM, TTS, STT, and telephony providers Sub-500ms latency infrastructure optimised for real-time conversational AI Enterprise security: SOC 2, HIPAA, and PCI compliance; SSO, OAuth, and RBAC Live monitoring with real-time dashboards for tracking agent performance Guardrails with built-in protections to reduce hallucinations Scalability supports millions of concurrent calls; cited by Fortune 100 clients

    Use cases

    Engineering teams building custom voice AI stacks, enterprises requiring SOC 2, HIPAA, or PCI compliance, call centres and BPOs automating high-volume voice interactions, and technical founders who want full programmatic control.