Retell AIAI Voice Agents That Automate Phone Calls
vs
VoiceflowPlatform for building, testing and deploying chat and voice AI agents
Comparison · AI Agents · weekly run Nov 3
Retell AI vs Voiceflow
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Retell AI is the stronger AI pick in AI Agents: it has a visibility score of 2 versus 1.6 for Voiceflow.
Choose Retell AI if…
- You want the brand AI engines rank higher (2 vs 1.6)
- You need a self-hosted or on-premises option
- You need SOC 2 Type II or ISO 27001 coverage
- Highly rated by developers and SMBs
Choose Voiceflow if…
- You need SOC 2 or ISO/IEC 27001:2022 coverage
- Visual design, testing, and launch of conversational and voice AI agents
- Strong enterprise reliability and certifications
- Recommended for customer support and conversational experiences
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Retell AI | Voiceflow |
|---|---|---|
| Visibility score | 2% | 1.6% |
| Change vs last week | New | New |
| Rank in AI Agents | #42 | #48 |
| Share of voice | 0.5% | 0.6% |
| Mentions this run | 3 | 4 |
| Positive in AI answers | — | 50% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Retell AI 0pp · Voiceflow 0pp over 0 weekly runs.
Engine by engine
Retell AI leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
Retell AIVoiceflow
Head to head in AI answers
0 engine answers name both brands
0Retell AI ranked higher
0Voiceflow ranked higher
Features, pricing & fit
| Dimension | Retell AI | Voiceflow |
|---|---|---|
| Pricing model | Usage-based | — |
| Entry price | Contact sales | — |
| Free plan | Yes | — |
| Deployment | Cloud platform, with enterprise on-premises deployment available | Public cloud, dedicated VPC or on-premise hosting |
| Compliance | HIPAA, SOC 2 Type II, GDPR, ISO 27001 | SOC 2, ISO/IEC 27001:2022, HIPAA, GDPR |
| Support | Community and email support, 24/7 omnichannel support with dedicated portal (Enterprise), Dedicated implementation support (Enterprise), Named account manager (Enterprise) | — |
| Founded | 2023 | 2019 |
| Headquarters | Redwood City, California | Toronto |
| Employees | 51–200 | — |
| Funding | Seed · $5M raised | Seed led by True Ventures · $35M raised |
| Best for | Businesses that run high call volumes in healthcare, insurance, financial services, logistics and similar fields, and teams that want to build and change voice agents themselves. | Customer support and CX teams that build chat and voice AI agents |
Plans side by side
Retell AI
Pay as you go$0per minute, $0.07-$0.31 for voice agents
EnterpriseCustomcustom pricing
Voiceflow
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Retell AI
- Highly rated by developers and SMBs
- One of the highest customer star ratings
Voiceflow
- Visual design, testing, and launch of conversational and voice AI agents
- Strong enterprise reliability and certifications
- Recommended for customer support and conversational experiences
- Costs more than some alternatives
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Retell AI vs Voiceflow”, https://slateindex.ai/compare/retell-ai-vs-voiceflow, data of Nov 3, 2026. Licence: CC BY 4.0.