Retell AI vs Krisp

Detailed side-by-side comparison to help you choose the right tool

Retell AI

🟡Low Code

Voice AI

Retell AI is an end-to-end platform for building, deploying and monitoring voice AI agents that handle phone calls at production scale.

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Starting Price

$0.07/min
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Krisp

🟢No Code

Voice AI

Voice AI for clearer calls — noise cancellation, AI Note Taker, Accent AI and Call Center AI in one cross-app utility.

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Starting Price

Free
Full ReviewVisit Site

Feature Comparison

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FeatureRetell AIKrisp
CategoryVoice AIVoice AI
Pricing Plans3 listed plans4 listed plans
Starting Price$0.07/minFree
Key Features
  • • Latency-tuned conversational engine with natural turn-taking and interruption handling
  • • No-code conversation flow editor plus full SDK access
  • • Phone-number provisioning in 50+ countries with bring-your-own carrier
  • • AI Noise Cancellation
  • • Meeting Transcription
  • • Accent Conversion

Retell AI - Pros & Cons

Pros

  • ✓Compliance posture (SOC 2 Type II, HIPAA, PCI) is genuinely turnkey for regulated industries.
  • ✓No-code flow editor lets ops teams own the agent without engineering tickets.
  • ✓Latency tuning is audibly better than rolling your own STT-LLM-TTS pipeline.

Cons

  • ✗Per-minute pricing can spike on unbounded outbound campaigns without budget caps.
  • ✗Knowledge base ingestion is simpler than dedicated RAG platforms.
  • ✗Deep customisation still requires the SDK and engineering work.

Krisp - Pros & Cons

Pros

  • ✓Bi-directional noise cancellation is the strongest in the category — works for both sides of the call
  • ✓No-bot AI notes — privacy and discretion advantage over Fireflies/Otter
  • ✓OS-level install means one tool covers Zoom, Meet, Teams, Slack, WhatsApp, dialers and recorders
  • ✓Accent AI is genuinely useful for global support teams and is rare in this category

Cons

  • ✗Real-time noise model uses noticeable CPU on older laptops
  • ✗Free tier caps AI features at 60 min/day — heavy-call days will hit the limit
  • ✗Speaker diarization on transcripts is weaker than bot-based tools that have meeting metadata
  • ✗No MCP support — transcripts and summaries are not exposed as tools for agents

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🔒 Security & Compliance Comparison

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Security FeatureRetell AIKrisp
SOC2✅ Yes✅ Yes
GDPR✅ Yes✅ Yes
HIPAA✅ Yes✅ Yes
SSO🏢 Enterprise✅ Yes
Self-Hosted❌ No❌ No
On-Prem❌ No❌ No
RBAC🏢 Enterprise✅ Yes
Audit Log🏢 Enterprise❌ No
Open Source❌ No❌ No
API Key Auth✅ Yes❌ No
Encryption at Rest✅ Yes✅ Yes
Encryption in Transit✅ Yes✅ Yes
Data Residency—US, EU
Data Retentionconfigurableconfigurable
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Review Retell AIReview Krisp