Key highlights from blog post and GitHub repo:
- Open-source (Apache 2.0, same as OpenAI Codex)
- 1M token context window
- Free tier: 60 requests per minute and 1,000 requests per day (requires Google account authentication)
- Higher limits via Gemini API or Vertex AI
- Google Search grounding support
- Plugin and script support (MCP servers)
- Gemini.md file for memory instruction
- VS Code integration (Gemini Code Assist)