Blog Post: AWS Lambda Now Supports Up to 10 GB Ephemeral Storage (for a fee)
category: AWS Serverless
You can continue to use up to 512 MB for free and are charged for the amount of storage you configure over the free limit for the duration of invokes, up to 10Gb
Link (blog post):
https://aws.amazon.com/blogs/aws/aws-lambda-now-supports-up-to-10-gb-ephemeral-storage/