Free Machine Learning Services on AWS

AWS offers several free services that can be used for machine learning (ML) and artificial intelligence (AI) projects. Here are some of the key services:

1. AWS Free Tier: AWS Free Tier includes offers that are always free, offers that expire 12 months following sign up, and short-term free trial offers. It includes limited free usage for various AWS services, including Amazon SageMaker, AWS Lambda, and Amazon S3.

2. Amazon SageMaker: Amazon SageMaker provides a fully managed service for building, training, and deploying ML models. The AWS Free Tier includes 250 hours of t2.medium notebook usage per month for the first 12 months.

3. Amazon S3: Amazon Simple Storage Service (Amazon S3) provides object storage. The AWS Free Tier includes 5 GB of standard storage, 20,000 GET requests, and 2,000 PUT requests with Amazon S3 for the first 12 months.

4. Amazon Comprehend: Amazon Comprehend is a natural language processing (NLP) service. The AWS Free Tier includes 50 KB of text processed per month for the first 12 months.

5. Amazon Polly: Amazon Polly is a text-to-speech (TTS) service. The AWS Free Tier includes 5 million characters per month for speech or Speech Marks requests for the first 12 months.

6. Amazon Rekognition: Amazon Rekognition is an image and video analysis service. The AWS Free Tier includes 5,000 images and 30 minutes of video analysis per month for the first 12 months.

It's important to review the AWS Free Tier terms to understand usage limits and eligibility criteria.