aiagentrank.io

Ada vs Retell AI: 2026 comparison

AI customer service agent — resolves tickets across chat, email, voice with measurable deflection rates.

🎧SupportAutonomousSubscription
RAGTool useMemoryVoice

Production voice agent platform — LLM-native phone agents with low-latency streaming and per-minute pricing.

🎧SupportAutonomousPay per task
VoiceTool useMemory

Ada vs Retell AI — specs

SpecAdaRetell AI
Agent Rank78 / 100 (A)72 / 100 (A)
AutonomyAutonomousAutonomous
PricingSubscription · Free tierPay per task · Free tier
Open sourceNoNo
CapabilitiesRAG, Tool use, Memory, VoiceVoice, Tool use, Memory
Integrations4 apps3 apps
VerifiedVerifiedVerified
ReleasedFeb 2025Mar 2025

Categories: AdaSupport · Retell AISupport

Agent Rank breakdown

Ada
Agent Rank
78/ 100
AA-tier
Autonomy fit
9
Capabilities
8
Integrations
6
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?

Retell AI
Agent Rank
72/ 100
AA-tier
Autonomy fit
9
Capabilities
6
Integrations
4
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

Ada
Pros
  • +One of the longest-running CS AI products — battle-tested at scale
  • +Now Generative — rewritten on LLMs rather than older NLU patterns
  • +Clean Zendesk + Salesforce integration story
Cons
  • Older brand can feel less buzzy vs Sierra/Decagon — though the product is competitive
  • Voice still nascent vs Parloa
  • Enterprise-only sales motion
Retell AI
Pros
  • +Lowest per-minute pricing among production voice agent platforms
  • +Strong streaming latency (~300ms) competitive with ElevenLabs
  • +Per-minute pricing easier to forecast than per-seat
Cons
  • Less polished out-of-the-box than Synthflow for non-technical buyers
  • Documentation and tooling still maturing vs ElevenLabs
  • Voice quality varies by model selection

Pricing

Ada
Recommended
Generative
Custom
Mid-market support
  • +AI agent for chat + email
  • +Knowledge automation
  • +Reasoning engine
Enterprise
Custom
Large enterprises
  • +Voice channel
  • +Custom workflows
  • +Dedicated CS
Retell AI
Pay-as-you-go
Free
Developers
  • +~$0.07/min
  • +Production-ready API
Recommended
Scale
Custom
High-volume voice ops
  • +Volume discounts
  • +Dedicated infrastructure
  • +Custom models

Which one should you pick?

Ada

Pick Ada if its specific capabilities (RAG, Tool use) match what you need.

Try Ada →
Retell AI

Pick Retell AI if its specific capabilities (Voice, Tool use) match what you need.

Try Retell AI →

Affiliate links. We may earn a commission at no extra cost to you.

Frequently asked

Should I pick Ada or Retell AI in 2026?+

Pick Ada if its specific capabilities (RAG, Tool use) match what you need. Pick Retell AI if its specific capabilities (Voice, Tool use) match what you need. Most working teams running both can use Ada for primary work and Retell AI for the workflows where its specific strengths matter.

What's the price difference between Ada and Retell AI?+

Both Ada and Retell AI start in the same pricing range (Subscription · Free tier vs Pay per task · Free tier). Total cost of ownership depends on your team size and volume — see the TCO calculator for your specific math.

Which is more autonomous, Ada or Retell AI?+

Both Ada and Retell AI are Autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.

Want the real monthly cost at your volume? Run the TCO calculator →
← Build your own comparison