The free tier limit for the Geocoding API on the Google Maps Platform is 40,000 requests per month. This free tier limit applies to both the standard Geocoding API and the Geocoding API for Places.
If you exceed the free tier limit, you will be charged according to the pricing plan for the Geocoding API. The pricing for the Geocoding API is based on the number of requests made, and varies depending on the region, the type of request (e.g. forward geocoding or reverse geocoding), and the usage volume.
You can view your Geocoding API usage and billing information in the Google Cloud Console, and set up billing to avoid service disruptions if you exceed the free tier limit. It's important to monitor your usage and stay within the allowed limits to avoid unexpected charges and service disruptions.