Google Cloud GenAI repo tracks Gemini 3.1

This repo matters less as a code dump and more as Google's fastest-moving developer surface for Vertex AI best practices. When Google wants developers to actually use a new capability, it often shows up here first in runnable notebooks instead of polished marketing pages.

• –The project spans Gemini prompts, agents, RAG, search, vision, audio, and environment setup, so it works as a full-stack map of Google's GenAI platform
• –Google's own Vertex AI RAG Engine blog post links directly into notebooks from this repo, which shows it is part of the official developer adoption funnel
• –With 13.5k stars, it is acting like community infrastructure for Vertex AI builders, not just vendor documentation
• –The emphasis on sample apps and notebook-driven workflows lowers the barrier for teams evaluating Gemini on managed Google Cloud infrastructure