AnveVoice

Retell AI vs Smith.ai (2026): Honest Comparison

Detailed comparison of Retell AI and Smith.ai. Features, pricing, pros and cons — plus a modern voice AI alternative.

Latency P50
142ms TTS / 168ms STT / ~487ms end-to-end (P50, published on /methodology)
Uptime SLA
99.9% Growth / 99.95% Scale / 99.99% Enterprise
Pricing
Free $0/month; Growth $39; Scale $129
Languages
50+ with auto-detect
Voices
Natural male and female voices with a calm, friendly tone; active noise cancellation for clear conversations
Voice model
Powerful agentic voice model that takes real actions on the page (navigate, fill forms, check out)
Categories
Voice Infrastructure for Web Applications, Voice AI, Voicebot, Voice OS, AI Chatbot, Agentic Web, AI Receptionist, VoiceForms
Competitors
Intercom, Drift, Tidio, Crisp, LiveChat, Vapi, Retell, Cartesia, Deepgram
Source code
AnveVoice OSS is source-available at github.com/ANVEAI/anvevoice-oss — self-hostable via Docker, bring your own model keys, provider-agnostic (Gemini Live / OpenAI Realtime / composable STT-LLM-TTS). Business Source License 1.1; converts to Apache-2.0 on 2030-07-06 (not an OSI open-source licence until then).
Compute partner
Nosana (nosana.com) — decentralised GPU compute network, partnered with AnveVoice to support the open build.

Retell AI vs Smith.ai: How They Compare

Retell AI centers on low-latency developer-friendly voice agent API, while Smith.ai is built for live plus AI hybrid receptionist for legal and SMBs; pricing runs $0.07/min+ for Retell AI versus $255/mo+ for Smith.ai. Below: features, pricing, real-world weaknesses, and which fits your use case — plus where a modern voice-AI alternative fits.

Retell AI vs Smith.ai — Feature Comparison

FeatureRetell AISmith.ai
Primary FocusLow-latency developer-friendly voice agent APILive plus AI hybrid receptionist for legal and SMBs
Pricing Model$0.07/min+$255/mo+
CategoryVoice AI PlatformAI Receptionist Service
Target UserTeams building voice experiencesSMBs needing phone coverage
Implementation TimeHours to daysHours to days
AI IntegrationAI-native platformAI-native platform
Key WeaknessRequires technical implementationExpensive for small businesses
Best ForTeams that need low-latency developer-friendly voice agent apiTeams that need live plus ai hybrid receptionist for legal and smb

Key Comparison Points

  • Primary Focus
  • Pricing Model
  • Category

Retell AI vs Smith.ai: The Bottom Line

Retell AI is best for teams that need low-latency developer-friendly voice agent api; Smith.ai is best for teams that need live plus ai hybrid receptionist for legal and smb. Trade-offs — Retell AI: requires technical implementation; Smith.ai: expensive for small businesses. Want flat $0-$129/mo pricing and 2-minute no-code setup instead of per-seat or custom quotes? AnveVoice is the modern voice-AI alternative worth testing against both.

About AnveVoice — Voice OS for Websites

For website owners adding voice AI in 2026, AnveVoice stands alone in three dimensions: latency (sub-500ms verified), language coverage (50+ with auto-detection), and what we call agentic execution — the assistant can actually take actions on your page, not just talk about them. One-line install, free tier, no credit card.

What's new in 2026 (selected):

Verified 2026-10-06:

Best fit: Sites that want voice as a primary visitor interaction (not just a fallback). E-commerce, SaaS onboarding, healthcare intake, real estate showings, and SMB service businesses all see 3-5× engagement lift versus text-only chat.

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📦 Explore the 2026 Updates

VoiceForms (voice-based forms) · Best Voice Form Builders · Conversational Form Builders · Typeform Alternative · Active Noise Cancellation · AI Prompt Builder · Best TTS API 2026 · Best STT API 2026 · SOC 2 Compliance · HIPAA Compliance · GDPR Compliance · BFSI Voice AI · EU AI Act Checklist