Retell AI vs Smith.ai

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

Retell AI

🔴Developer

Voice Agents

Conversational voice infrastructure for call center automation. - Enhanced AI-powered platform providing advanced capabilities for modern development and business workflows. Features comprehensive tooling, integrations, and scalable architecture designed for professional teams and enterprise environments.

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Starting Price

Free

Smith.ai

🟢No Code

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

Feature Comparison

Scroll horizontally to compare details.

FeatureRetell AISmith.ai
CategoryVoice AgentsEnterprise Agents
Pricing Plans11 tiers4 tiers
Starting PriceFreeContact
Key Features
  • Workflow Runtime
  • Tool and API Connectivity
  • State and Context Handling

    Retell AI - Pros & Cons

    Pros

    • Ultra-low latency voice responses under 800ms for natural conversation flow
    • Built-in call transfer, voicemail detection, and IVR navigation capabilities
    • Conversation-level memory persists context across multiple calls with same contact
    • Visual conversation flow builder for designing complex voice agent logic without code

    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.

    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

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    🔒 Security & Compliance Comparison

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    Security FeatureRetell AISmith.ai
    SOC2✅ Yes
    GDPR✅ Yes
    HIPAA✅ Yes
    SSO🏢 Enterprise
    Self-Hosted❌ No
    On-Prem❌ No
    RBAC🏢 Enterprise
    Audit Log🏢 Enterprise
    Open Source❌ No
    API Key Auth✅ Yes
    Encryption at Rest✅ Yes
    Encryption in Transit✅ Yes
    Data Residency
    Data Retentionconfigurable
    🦞

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