What is Amazon Lex?
Amazon Lex is a fully managed service for conversational AI. The service uses automatic speech recognition (ASR) and natural language understanding (NLU) to build chatbots and voice assistants. Lex is based on the same technology as Alexa and enables natural conversations without ML expertise.
Core Features
- Intent Recognition: Automatic recognition of user intent from natural language
- Slot Filling: Structured capture of information in dialog (names, dates, locations)
- Multi-Turn Dialogs: Context-aware conversations across multiple interactions
- Voice and Text Support: Same bots usable for voice and chat
- Lambda Integration: Backend logic and fulfillment via AWS Lambda
Typical Use Cases
Customer Service Chatbots: Automate common customer inquiries about order status, account information, or FAQ. Lex recognizes intents and executes actions or escalates to human agents.
IVR Systems: Replace rigid phone menus with natural voice interaction. Customers describe their concern and are connected directly to the right department.
Internal Assistants: Employee bots for IT helpdesk, HR inquiries, or room bookings. Integration with Slack, Microsoft Teams, or custom applications.
Benefits
- No ML expertise required
- Same technology as Alexa
- Seamless integration with AWS Lambda and Amazon Connect
- Pay-per-request without upfront costs
Integration with innFactory
As an AWS Reseller, innFactory supports you with Amazon Lex: bot design, intent modeling, Lambda integration, and deployment in contact centers or web applications.
Typical Use Cases
Frequently Asked Questions
What is Amazon Lex?
Amazon Lex is a managed service for conversational interfaces using voice and text. The service uses the same technology as Alexa and enables building chatbots and voice assistants without ML expertise.
How does Lex differ from Amazon Connect?
Lex is the conversational AI engine for intent recognition and dialog management. Amazon Connect is a cloud contact center that can use Lex for automated customer interactions. Both services complement each other.
What languages does Lex support?
Lex supports German, English, French, Spanish, Italian, Japanese, and other languages. Language support varies by feature and region.
How much does Amazon Lex cost?
Lex charges per request: $0.004 per voice request and $0.00075 per text request. The first 10,000 text and 5,000 voice requests per month are free in the first year.