# Core Concepts

Learn the key concepts used in Kilo Code

| Concept                          | Description                                                                                                                                                                                                                                                           | Video Preview                                                                                                                                         |
| -------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Provider**                     | Kilo Code provides its own built-in API provider that gives you access to the latest frontier coding models without the need to manage API keys that offers access to frontier models such as: OpenAI (GPT-5), Anthropic (Claude), Google (Gemini), Meta (Llama) etc. | <video width="300" controls><source src="/docs/videos/Provider.mp4" type="video/mp4"/>Checkpoint reasoning demo showing concurrent file edits</video> |
| **Foundational Models**          | Large-scale AI models trained on vast datasets that serve as the base for AI applications. Models like GPT, Claude, LLaMA provide core language understanding and generation capabilities.                                                                            | <video width="300" controls><source src="/docs/videos/Models.mp4" type="video/mp4"/>Foundation model</video>                                          |
| **Prompt Engineering**           | Art and science of crafting effective inputs for AI models to achieve desired outputs. Use enhance button to improve your prompt                                                                                                                                      | <video width="300" controls><source src="/docs/videos/Prompt.mp4" type="video/mp4"/></video>                                                          |
| **Modes**                        | Within Kilo Code you can choose **Architect** mode to plan and design you software, **Code** mode to write and refactor code, **Ask** to understand your codebase, **Debug** to fix software issues and **Orchestrator** to coordinate tasks accross modes            | <video width="300" controls><source src="/docs/videos/Modes.mp4" type="video/mp4"/></video>                                                           |
| **Codebase Indexing**            | Codebase Indexing enables semantic code search across your entire project using AI embeddings.                                                                                                                                                                        | <video width="300" controls><source src="/docs/videos/Indexing.mp4"/>Codebase structure mapping and navigation</video>                                |
| **MCP (Model Context Protocol)** | Standardized protocol for managing context and communication between AI models and external systems. Enables seamless integration with tools, databases, and services.                                                                                                | <video width="300" controls><source src="/docs/videos/MCP.mp4" type="video/mp4"/>MCP demo</video>                                                     |