Google Cloud Functions (GCF) and AWS Lambda are both serverless computing platforms, but they have key differences. GCF is deeply integrated with Firebase and Google Cloud services, providing a seamless experience for developers already using these tools. It supports only Node.js, Python, Go, .NET, and Java while AWS Lambda supports additional languages like Ruby and PowerShell.
Lambda has more matured features such as provisioned concurrency for predictable start-up times and can be triggered by any AWS service. However, it’s tightly coupled with the AWS ecosystem which could lead to vendor lock-in.
In terms of pricing, GCF charges per 100ms of execution time whereas Lambda bills per 1ms, making Lambda potentially cheaper for short-lived functions. Both offer generous free tiers.