It's false advertising - 1000 model requests, not 1000 Gemini 2.5 Pro requests. It drops to Flash after 3-5 requests and Flash is useless.

Flash is very very good (better than 4.1 at faster speeds). Just not anywhere near 2.5 pro.

Theoretically, practically it is riddled with rate limiting issues

https://github.com/google-gemini/gemini-cli/issues/1502

We are working to resolve this. It's still in preview but expect to see healthy Gemini 2.5 Pro allocations for subscription customers in the near future.