Gemini-3.5-flash usage incorrectly reported (and billed?) as Gemini 3.1 Pro in Google AI Studio

Gemini API
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1

Yesterday, I called the gemini-3.5-flash through the batch API. However, Google AI Studio incorrectly reports it as Gemini 3.1 Pro:

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while the Gemini 3.5 Flash is empty:

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resulting in higher billing rates.

My code does not reference any gemini-3.1-pro-preview model anymore. I believe it is a bug in reporting regarding the batch API.

2

HI

Can you share your project Id via DM with me ?

3

My bad. I’ve left an outdated configuration file with the wrong model configuration. :person_facepalming:

There is nothing wrong in the reporting.

Sorry for the noise!