### What problem does this proposed feature solve? Using of Gemini Flash 2.5 05-20 via the Vertex provider ### Describe the proposed solution in detail Please? ### Technical considerations or implementation details (optional) _No response_ ### Describe alternatives considered (if any) _No response_ ### Additional Context & Mockups _No response_ ### Proposal Checklist - [x] I have searched existing Issues and Discussions to ensure this proposal is not a duplicate. - [x] This proposal is for a specific, actionable change intended for implementation (not a general idea). - [x] I understand that this proposal requires review and approval before any development work begins. ### Are you interested in implementing this feature if approved? - [ ] Yes, I would like to contribute to implementing this feature.