AnveVoice

Five9 vs Retell AI (2026): Honest Comparison

Detailed comparison of Five9 and Retell 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.

Five9 vs Retell AI: How They Compare

Five9 centers on cloud-native contact center, while Retell AI is built for low-latency developer-friendly voice agent API; pricing runs $149/agent/mo+ for Five9 versus $0.07/min+ for Retell AI. Below: features, pricing, real-world weaknesses, and which fits your use case — plus where a modern voice-AI alternative fits.

Five9 vs Retell AI — Feature Comparison

FeatureFive9Retell AI
Primary FocusCloud-native contact centerLow-latency developer-friendly voice agent API
Pricing Model$149/agent/mo+$0.07/min+
CategoryEnterprise Contact CenterVoice AI Platform
Target UserEnterprise contact center teamsTeams building voice experiences
Implementation TimeWeeks to monthsHours to days
AI IntegrationAI features availableAI-native platform
Key WeaknessExpensive entry-level pricingRequires technical implementation
Best ForTeams that need cloud-native contact center with intelligent vaTeams that need low-latency developer-friendly voice agent api

Key Comparison Points

  • Primary Focus
  • Pricing Model
  • Category

Five9 vs Retell AI: The Bottom Line

Five9 is best for teams that need cloud-native contact center with intelligent va; Retell AI is best for teams that need low-latency developer-friendly voice agent api. Trade-offs — Five9: expensive entry-level pricing; Retell AI: requires technical implementation. 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

AnveVoice turns any website into a voice-first surface. Deploy in two minutes via one JavaScript line, then your AI assistant speaks 50+ languages with sub-500ms response time. Unique to AnveVoice: agentic DOM actions — the voice doesn't just answer, it clicks, fills, navigates, and completes flows for visitors hands-free.

What's new in 2026 (selected):

Verified 2026-10-06:

Why teams switch: Existing voice AI vendors charge $0.10-0.30/minute and require infrastructure work. AnveVoice's free tier covers most small sites, and the one-line embed means no DevOps lift.

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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