Regarding Gemini CLI credit issues

[ISensuiI]

Regarding Gemini CLI credit issues

I've been using Gemini CLI for a while and I know there are several ways to connect.

1. Login with Google
2. Use Gemini API Key (Google AI Studio API)
3. Vertex AI (Google Cloud Vertex API)

I've been using Google Cloud for a while, but my credit is depleting very quickly. Regarding the first method, logging in directly with a Google account usually gives me very little credit. I'm wondering if it also applies to Google AI Studio credit.
Or is it credit for https://gemini.google.com/?
Can I sign up for a monthly subscription through https://gemini.google.com/?
Or is there a monthly subscription option for the CLI similar to Claude Code?

Or is https://gemini.google.com/ completely unrelated to Google CLI and can only be used through Google AI Studio and Google Cloud?