title: Why are the free tiers for Cloud Functions for Firebase and Cloud Functions different?
body: <p>On the pricing page for <a href="https://firebase.google.com/pricing/" rel="nofollow noreferrer">Cloud Functions for Firebase</a>, it says that the Spark (free) plan has a limit of 125K invocations, 40K GB-seconds and 40K CPU-seconds per month, and only outbound networking for Google services. This is considerably different than the pricing for <a href="https://cloud.google.com/functions/pricing" rel="nofollow noreferrer">Google Cloud Functions</a> pricing where you get 2M invocations, 400K GB-seconds, 400K CPU-seconds and 5GB of outbound networking per month. Why are these two free tiers different when Cloud Functions for Firebase is basically thin a wrapper for Cloud Functions?<br><br>
  This is mostly a separate question, but still related: Am I able to use native Cloud Functions with Firebase from the linked Google Cloud Platform project? I ask because Firebase projects still have a linked Google Cloud Platform project so I was wondering if I could use the Google Cloud Platform free tier for Cloud Functions.<br><br>
  Thanks in advance.</p>