Smith.ai vs Vapi

Detailed side-by-side comparison to help you choose the right tool

Smith.ai

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Enterprise Agents

AI-powered virtual receptionist combining AI agents with human backup for phone answering, live chat, and appointment booking.

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Starting Price

Contact
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Vapi

🔴Developer

Voice Agents

Developer platform for real-time voice AI agents.

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Starting Price

Free
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Feature Comparison

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FeatureSmith.aiVapi
CategoryEnterprise AgentsVoice Agents
Pricing Plans4 tiers11 tiers
Starting PriceContactFree
Key Features
    • • Workflow Runtime
    • • Tool and API Connectivity
    • • State and Context Handling

    Smith.ai - Pros & Cons

    Pros

    • ✓Hybrid AI + human ensures quality for complex calls
    • ✓Excellent for professional services firms
    • ✓Massive integration library
    • ✓24/7 availability
    • ✓Strong lead qualification capabilities

    Cons

    • ✗Higher cost than pure AI solutions
    • ✗Per-call pricing can be unpredictable
    • ✗Less customizable than building your own AI agent
    • ✗Overkill for simple call routing needs

    Vapi - Pros & Cons

    Pros

    • ✓Sub-500ms voice response latency through optimized streaming pipeline
    • ✓Supports custom LLM backends including self-hosted models via OpenAI-compatible API
    • ✓Built-in function calling lets voice agents execute real-time actions during conversations
    • ✓Handles interruptions and turn-taking naturally with configurable barge-in sensitivity

    Cons

    • ✗Complexity grows with many tools and long-running stateful flows.
    • ✗Output determinism still depends on model behavior and prompt design.
    • ✗Enterprise governance features may require higher-tier plans.

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    🔒 Security & Compliance Comparison

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    Security FeatureSmith.aiVapi
    SOC2—✅ Yes
    GDPR—✅ Yes
    HIPAA—✅ Yes
    SSO—🏢 Enterprise
    Self-Hosted—❌ No
    On-Prem—❌ No
    RBAC—🏢 Enterprise
    Audit Log—✅ Yes
    Open Source—❌ No
    API Key Auth—✅ Yes
    Encryption at Rest—✅ Yes
    Encryption in Transit—✅ Yes
    Data Residency——
    Data Retention—configurable
    🦞

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    Ready to Choose?

    Read the full reviews to make an informed decision

    Review Smith.aiReview Vapi