Gemini 3 - 403 PERMISSION_DENIED - The caller does not have permission

Gemini API
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1

I’m in the middle of doing some changes on one of our AI project that uses gemini api when I suddenly get PERMISSION_DENIED on all Gemini 3 models. Gemini 2 still works fine but what’s that point paying when we’re restricted to using the old models?

{'code': 403, 'message': 'The caller does not have permission', 'status': 'PERMISSION_DENIED'}

I have tried multiple api keys both free and billed and they are all unable to use Gemini 3. We barely reach our tier limit, each of our request use less than 2000 tokens and there are very few request per minutes.

Our prod servers are getting the same response and are falling back to gemini 2 models. If gemini 2 starts throwing the same error, this feature of our app basically becomes unusable.

2

Same, hopefully we get a message soon!

3

Same issue here. Though it was me…

4

Same. We received 3 emails in succession about 8 hours ago upgrading our “tier” in AI studio. We do not use AI studio, API keys made about 11 months ago.

All gemini reliant services are down for us as a result.

5

Oddly enough, Gemini 3 Flash Preview seems to work, unlike other 3.x models.

6

gemini-3.5-flash and gemini-3.7-flash also works for me now. gemini-3.6-flash still returns 403. They are most probably working on it right now. But sucks I have to baby sit for now till I finish automating things.

7

Same issue here. 403 errors have exploded today