Amazon Lex
8.6#5 in chatbot builders$0.50 one-timeFree planAndroidiOSWebAPI
VisitAmazon Lex vs Voiceflow
What both publish
| Fact | Amazon Lex | Voiceflow |
|---|---|---|
| AI bot generation | Yes | Yes |
| Channels | Bots can be deployed across mobile devices and chat services including Facebook Messenger, Slack, Kik, and Twilio SMS. | Agents can be deployed through web chat, mobile interfaces, telephony, SMS and custom interfaces using the Conversations API. |
| Deployment channels | multichannel | multichannel |
| Human handoff | Yes | Yes |
| Knowledge-base answers | Yes | Yes |
Amazon Lex plans
- Text requestsFree
- Speech requestsFree
- AWS Free TierFree
- Speech requestFree
- Text requestFree
- Automated chatbot designer$0.50, paid once
Voiceflow plans
- StarterFree
- Agencies & PartnersFree
- Pro$120 a month
- Business$500 a month
- Pro$972 a year
- EnterprisePriced on request
Pick Amazon Lex if…
Lex suits builders creating voice or chat assistants for self-service, information, transactions, enterprise productivity, or device control. It may also fit teams that want to connect bots with AWS services or contact-center channels.
Pick Voiceflow if…
Voiceflow is presented for CX and support leaders, engineers, enterprise teams, and agencies or partners building agents for clients. It may suit teams that need agents across voice and chat channels, integrations, and evaluation tools.