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by welkie 2022 days ago
> Based on this experience, we decided to lower the default value of "max instances" to 100 for future deployments. We believe 100 is a better trade off between allowing customers to scale out and preventing big billing surprises.

This is good to hear. I use Cloud Run a lot for personal projects and I always set concurrency to 80, max instances to 1, memory to 128Mi (unless it's something beefy that needs the memory), and CPU to 1. If I need to scale it up, or I decide to open it up to actual usage, I'll do it when I recognize the need.