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Reply.io vs Vapi: 2026 comparison

AI sales engagement — multichannel sequences, Jason AI SDR, and inbox-warming for outbound at scale.

💼SalesSemi-autonomousFreemium · from $59
Tool useMemoryVoice

Developer-first voice agents — build production phone agents with an SDK and dashboard.

🎧SupportAutonomousPay per task
VoiceTool useMemory

Reply.io vs Vapi — specs

SpecReply.ioVapi
Agent Rank65 / 100 (B)68 / 100 (B)
AutonomySemi-autonomousAutonomous
PricingFreemium · from $59Pay per task · Free tier
Open sourceNoNo
CapabilitiesTool use, Memory, VoiceVoice, Tool use, Memory
Integrations6 apps2 apps
VerifiedVerifiedVerified
ReleasedSep 2025Feb 2025

Categories: Reply.ioSales · VapiSupport

Agent Rank breakdown

Reply.io
Agent Rank
65/ 100
BB-tier
Autonomy fit
8
Capabilities
6
Integrations
8
Pricing value
6
Polish & maturity
4
Verifiability
7

Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?

Vapi
Agent Rank
68/ 100
BB-tier
Autonomy fit
9
Capabilities
6
Integrations
2
Pricing value
9
Polish & maturity
5
Verifiability
10

Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?

Pros & cons

Reply.io
Vapi
Pros
  • +Most developer-friendly voice agent in 2026 — SDK-first, well documented
  • +BYO model gives full cost + behavior control
  • +Pay-as-you-go makes prototyping nearly free
Cons
  • You build the conversation logic — not a turnkey product
  • Voice quality depends heavily on which provider you wire in
  • Less polished than Parloa for contact-center deployments

Pricing

Reply.io
Vapi
Recommended
Pay-as-you-go
Free
Developers
  • +$0.05/min base
  • +BYO LLM provider
  • +Full SDK + dashboard
Enterprise
Custom
Production at scale
  • +Volume discounts
  • +Dedicated infra option
  • +SLA + support

Which one should you pick?

Reply.io

Pick Reply.io if your stack spans many tools and integration depth is the constraint.

Try Reply.io →
Vapi

Pick Vapi if cost is the main constraint or if you want the highest autonomy and the verification loop is in place.

Try Vapi →

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Frequently asked

Should I pick Reply.io or Vapi in 2026?+

Pick Reply.io if your stack spans many tools and integration depth is the constraint. Pick Vapi if cost is the main constraint or if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Reply.io for primary work and Vapi for the workflows where its specific strengths matter.

What's the price difference between Reply.io and Vapi?+

Reply.io starts at Freemium · from $59; Vapi starts at Pay per task · Free tier. Vapi is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.

Which is more autonomous, Reply.io or Vapi?+

Vapi is the more autonomous of the two (Autonomous vs Semi-autonomous). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.

Want the real monthly cost at your volume? Run the TCO calculator →
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