# Gemini

> Google Gemini AI models for multimodal tasks. Use for multimodal AI. Use when this capability is needed.

- Skill: `tomevault-io/gemini-15` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/gemini-15`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/gemini-15/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/gemini-15

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# Gemini

Gemini is Google's native multimodal model. Uniquely, it accepts **video** and huge context (2M+ tokens) natively. 2025 sees Gemini 2.0/3.0.

## When to Use

- **Massive Context**: "Here is a 1-hour video. Find the timestamp where..."
- **Multimodal Live**: Real-time voice/video interaction.
- **Google Ecosystem**: Integrated with Vertex AI, Search (Grounding), and Workspace.

## Core Concepts

### Models

- **Pro**: The best all-rounder.
- **Flash**: Extremely fast and cheap. High throughput.
- **Ultra**: The largest reasoning model.

### Grounding

Connects the model to Google Search to provide citations and up-to-date info.

### Context Initial Caching

Cache the context (e.g., a massive manual) to reduce cost/latency on subsequent queries.

## Best Practices (2025)

**Do**:

- **Use Flash for RAG**: 2.0 Flash is smart enough for most RAG & cheaper/faster.
- **Use Grounding**: Eliminate hallucinations by enforcing "Google Search" grounding.
- **Upload Video**: Don't transcribe video manually; Gemini watches it.

**Don't**:

- **Don't confuse with PaLM**: Gemini replaced PaLM 2 completely.

## References

- [Gemini API Documentation](https://ai.google.dev/)

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<!-- tomevault:4.0:skill_md:2026-04-14 -->

