Salesforce と Google の創業者が手がける、ブランドイメージに沿った顧客対応AIエージェントです。
音声ツール利用メモリRAG
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Ada vs Retell AIwhich AI support agent should you pick in 2026?
AI customer service agent — resolves tickets across chat, email, voice with measurable deflection rates.
RAGTool useMemoryVoice
Ada vs Retell AI — specs
| Spec | Ada | Retell AI |
|---|---|---|
| Agent Rank | 80 / 100 (A) | 73 / 100 (A) |
| Autonomy | Autonomous | Autonomous |
| Pricing | Subscription · Free tier | Pay per task · Free tier |
| Open source | No | No |
| Capabilities | RAG, Tool use, Memory, Voice | Voice, Tool use, Memory |
| Integrations | 4 apps | 3 apps |
| Verified | Verified | Verified |
| Released | Feb 2025 | Mar 2025 |
Agent Rank breakdown
Ada
Agent Rank
80/ 100
- 自律性
- 9
- 機能
- 8
- 連携
- 6
- 料金
- 9
- 完成度
- 6
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Retell AI
Agent Rank
73/ 100
- 自律性
- 9
- 機能
- 6
- 連携
- 4
- 料金
- 9
- 完成度
- 6
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Pros & cons
Ada
メリット
- +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
デメリット
- −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
メリット
- +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
デメリット
- −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
おすすめ
Generative
カスタム
Mid-market support
- +AI agent for chat + email
- +Knowledge automation
- +Reasoning engine
Enterprise
カスタム
Large enterprises
- +Voice channel
- +Custom workflows
- +Dedicated CS
Retell AI
Pay-as-you-go
無料
Developers
- +~$0.07/min
- +Production-ready API
おすすめ
Scale
カスタム
High-volume voice ops
- +Volume discounts
- +Dedicated infrastructure
- +Custom models
Which one should you pick?
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.
Readers comparing Ada and Retell AI also picked
Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.
Multilingual customer-support AI agents with local deployment teams in 30 countries.
ツール利用メモリ音声RAGForrester Wave Leader 2026 — enterprise voice and chat agent platform (now NiCE Cognigy).
ツール利用音声メモリRAG
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See more alternatives: alternatives to Ada · alternatives to Retell AI
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