I bought a Gemini API key and used GPT Load to poll

I bought a Gemini API key and used GPT Load to poll. After an average of 25 attempts, all the responses started to show 429. Is this a problem with the key?
Is it a key problem or an IP problem? The number of times each key is used is 100 per day, how can it be evaluated that it starts to 429 after 25 times? All the flash models are used and the pro is basically useless.

The "429" error from the Gemini API means you've hit a quota or rate limit, but it's not always because you've hit your daily 100-request cap. Gemini API enforces multiple limits simultaneously: requests per minute (RPM), tokens per minute, and requests per day. If you exceed any one of those, you'll get a 429 error, even if other limits (like 100 per day) haven't been reached yet.

You can try to use a Gemini api key from openrouter. I managed to overcome this exact problem for a different model i was testing a few months back. Worth a try.