Gemini 3.1 pro was good a week ago, but now it's completely down

Gemini API
1

What happened with 3.1 Pro?
When released, it was outstanding. I got really good results with it even on complex tasks.

Just testing it today and it doesn’t looks to be the same model.
Subject to hallunications more than ever, do not follow prompted basic rules ( it still commited changes but I had forbidden it to do it, add comments where it was told to not add to, trying to execute commands I’ve asked him to not use, etc ).
Also the mindset is poorer, report quality, code quality, everything seems to have decrease in a week.

2

Ah, the same thing happened to me. I tasked it with a simple operation, but it executed it in a profoundly unintelligent manner.

3

Yes, and currently it’s completely non responsive for me. Fast and Thinking is working, but Pro keeps giving me an error message.

4

You are right, on released it was too good but now its not even close to sonnet 4.6! really sad and worried to see this I cancel my cursor subscription!

5

gemini-3.1-pro-preview is completely down, no matter how many times my apps try.
It worked really well for me for about a week. gemini-3-pro-preview is working so falling back on that.

6

Hi

Thank you for letting us know, could you share what errors are you getting when accessing Gemini 3.1 pro ?

7

Gemini 3.1 Pro API is unusable now. No matter, which time you try, they simply give an error message: API ERROR on Row 151: 503 UNAVAILABLE. {‘error’: {‘code’: 503, ‘message’: ‘This model is currently experiencing high demand. Spikes in demand are usually temporary. Please try again later.’, ‘status’: ‘UNAVAILABLE’}}

This is unacceptable. There was no such issues with Gemini 3 Pro API. Tried many time but no change in the situation for the last 2 days

8

Gemini 3.1 Pro is available on Google AI Studio and Web Interface but API is not available. I am in a promotional plan. Are you deliberately cutting us off? I don’t get this. My friends who are paying for the tokens are using the API when I am stuck here

10

Hi my gemini pro doesn’t work too, the thinking and the fast still do, but the pro continues saying “something went wrong“:frowning:

11

I have been using Gemini Pro for C and Bash Linux programming mostly and since 2.5 it was great, 3.0 was perfect, 3.1 even better for a day or 2. Then it collapsed. First of all it’s tone of voice changed and is extremely short and to the point, almost uninterested rude. But more importantly it lost it’s ability to do the same very complex C programming and refactoring tasks. It’s not even close now. What did you do Google???!!

BTW, I don’;t use Studio, just Gemini in a separate Firefox Window.

12

I use Gemini Pro for research on international development projects. It is now Tuesday, May 4, 2026 and I have been trying for an hour to get a response to a relatively simple question, but Gemini hangs, then erases the original question. I cleared the cache etc., but to no avail. I am happy that I still have my own research skills to fall back on, because Gemini does not seem to be very reliable right now.

13

Sema troubles. QoS. complety degradated, a lot. of time lost… I switched to otter models meanwhuli. things. get stable again.
Very superficaila analysis, like if they context windows has been drastically reduced…

14

I’m very tempted to cancel. Will wait another day or two.