Amazon Lex vs. Retell AI
A side-by-side comparison based on G2 review data.
| Metric | Amazon Lex | Retell AI |
|---|---|---|
| Overall rating | 4.2 | 4.8 |
| Review count | 43 | 2,640 |
| Ease of use | 8.7 | 9.1 |
| Ease of setup | 8.5 | 9.0 |
| Quality of support | 8.8 | 8.6 |
| Meets requirements | 8.9 | 9.2 |
| NPS | 47.619048 | 92.739778 |
| Small Business | 30.2% | 85.9% |
| Mid-Market | 25.6% | 14.1% |
| Enterprise | 44.2% | 0.0% |
| Total page views | 173 | 4,705 |
| Total LLM citations | 318 | 68,798 |
Amazon Lex
Amazon Lex is a service for building conversational interfaces into any application using voice and text. Amazon Lex provides the advanced deep learning functionalities of automatic speech recognition (ASR) for converting speech to text, and natural language understanding (NLU) to recognize the intent of the text, to enable you to build applications with highly engaging user experiences and lifelike conversational interactions.
- API Integration
- Bot Customization
- Features
- Integration Capabilities
- Chatbot Development
- Chat Features
Retell AI
Retell AI is a powerful conversational AI platform designed to automate voice, SMS, and chat interactions with natural, humanlike performance. Built on top of your choice of large language models (LLMs), Retell allows teams to spin up real-time AI agents that handle calls, trigger messaging workflows, and integrate seamlessly into your existing systems—all without writing code. At its core, Retell delivers Voice Agent Automation that feels indistinguishable from speaking with a real person.
- Ease of Use
- Helpful
- User Interface
- Integrations
- Simple
- Easy Integrations