# Grain compared with Codex

> How Grain can use Codex as an execution engine inside a wider Mission spanning agents, tools, files, and review.

- Canonical page: [/compare/codex](https://grain.sh/compare/codex)
- Agent-readable page: [/agents/compare--codex.md](https://grain.sh/agents/compare--codex.md)
- Section: Comparisons

## What this page covers

- Coding agent
- Multi-agent coordination
- Connected execution
- Persistent context
- Cross-functional work

## About Grain

Grain is a multi-agent work platform. A person describes an outcome as a Mission, Grain coordinates the models, tools, files, repositories, and connected computers needed to do the work, and the result returns for review.

Start with [the complete agent-readable index](https://grain.sh/agents/index.md) or read [the full site corpus](https://grain.sh/llms-full.txt).