I'm on Tier 2 Paid — Normal Gemini token usage since Nov 21 but billing is $0

Gemini API
1

I’m a Tier 2 paid user. Since November 21st, my Gemini usage has been normal like earlier (millions of input tokens per day).
Usage graphs show spikes across multiple models, especially Gemini 2.5 Flash.

However, I am still seeing $0 in billing — no charges have appeared.

I want to clarify:

  1. Are there promotional or zero-cost periods active for paid tiers?

  2. Does billing apply only when using specific Gemini endpoints?

  3. Is there a known delay for token billing on paid accounts after model upgrades?

3

same here,not billed after Nov 21st

5

Hii @Mrudul
Welcome to the Google AI Forum!!!

Thank you for reaching out.
I recommend please connect directly with Google Cloud Billing support for assistance regarding your API usage and billing. They will be able to review your account details and clarify why no charges have appeared despite your usage.