Overview of Amazon Lex features, use cases and pricing
Amazon (AWS) Lex is a fully managed artificial intelligence (AI) service with advanced natural language models for building conversational interfaces into applications. Service is predominantly used for Chatbots applications.
How it Works
Use Cases
Amazon Lex is used for Conversational and Chatbot AI applications. Some of the use cases are
- Build virtual agents and voice assistants
- Automate informational responses
- Improve productivity with application bots
Getting Started
Tutorials, Documentation, Hands on Training – https://aws.amazon.com/lex/getting-started/
Amazon Lex Pricing
With Amazon Lex, you pay only for what you use. There is no upfront commitment or minimum fee. Pricing for Lex is based upon these two interaction models.
Request and Response Interaction Pricing
With the request and response interaction, each user input is processed as a separate API call. You are charged based on the number of speech or text API requests processed by your bot.
Streaming Conversation Pricing
In a streaming conversation, all user inputs across multiple turns are processed in one streaming API call. The bot continuously listens and can be designed to respond proactively. You are charged based on the number of speech intervals or text requests that take place.
If your application on a daily basis has a Amazon Lex bot which process 5000 speech requests and 2000 text requests, following is the cost per day
| Input requests | Cost per request | Cost Per Day |
| 5000 speech requests | $0.004 | $20 |
| 5000 text requests | $0.00075 | $3.75 |
Additional Pricing details found in – https://aws.amazon.com/lex/pricing/
Amazon Lex Chatbot Examples
Building a conversational business intelligence bot with Amazon Lex – https://aws.amazon.com/blogs/machine-learning/building-a-conversational-business-intelligence-bot-with-amazon-lex/
Github Samples – https://github.com/aws-samples/aws-lex-web-ui
For more information about other AWS Machine Learning , AI services, check out our post – http://www.cloudinfonow.com/aws-ml-ai-services/