Not being billed for API calls to gemini pro 1.5?

[joedev2]

Hi,

I have been building an app and the REST API is sending 4 API calls to gemini 1.5-pro using AI Studio (not vertex. it was vertex earlier but it doesn't have 1.5 available), and even though I'm sending way over 32k tokens / call, probably closer to 500k tokens / call, I have not been billed for anything.

The only time when I was billed was when I momentarily used Vertex AI, and then only 0.9 cent. The model on my backend says 1.5-pro, but on my AI studio plan information on the website, it says 

Billed model pricing

Gemini 1.0 Pro

And I can't even select any other model. Is it possible that for some reason me calling to 1.5-pro is just calling 1.0 pro? Is 1.5 pro not available to me? Keep in mind that i was sending like a lot of tokens at least 200k per request.

Thanks,