Source: https://seerepo.com/compare/anomalyco/opencode/vs/morluto/rea
Markdown source: https://seerepo.com/compare/anomalyco/opencode/vs/morluto/rea.md
Description: opencode and rea share 4 technologies: MCP, @clack/prompts, Zod, and yaml. Both are written in TypeScript.

# opencode vs rea

opencode and rea share 4 technologies: MCP, @clack/prompts, Zod, and yaml. Both are written in TypeScript.

- [anomalyco/opencode](https://seerepo.com/r/anomalyco/opencode): The open source coding agent.
- [morluto/rea](https://seerepo.com/r/morluto/rea): Reverse engineer anything with agents, from app behavior down to native binaries.

## What they share and what sets them apart

- In common: MCP, @clack/prompts, Zod, yaml
- Only in opencode: Solid, @solidjs/router, Vite, Sentry, Anthropic, Electron, GitHub, Hono, Tailwind CSS, @tailwindcss/vite, @agentclientprotocol/sdk, Drizzle, jose, htmlparser2, gray-matter, @standard-schema/spec, electron-log, micromark, micromark-extension-gfm, pele, dompurify, marked, katex
- Only in rea: xterm, cairosvg, @xmldom/xmldom, plist, parse5, saxes, Ajv, ajv-formats, har-schema, pino

## Side by side

| | opencode | rea |
|---|---|---|
| Size | 1,028,811 lines written, 3,839 code files | 1,668,610 lines written, 2,423 code files |
| Who writes it | 0.3% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Jules | 16.3% of its commits signed by AI. With Claude Code, Codex, Cursor, Factory, GitHub Copilot, and Devin |
| Activity | Last push November 4, 2026, 21,835 commits, 224,454 stars | Last push November 4, 2026, 5,979 commits, 428,191 stars |
| Tests | 1,608 test files. 35.1% of its code files have a test that imports them | 3,518 test files. 66.6% of its code files have a test that imports them |

- Size: Lines written by people and agents, without generated ones; code files, without tests.
- Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
- Activity: From GitHub and its history, on the day SeeRepo read it.
- Tests: The files that test the code, and the share of code files a test imports.

## Frequently asked questions

### Which is bigger, opencode or rea?

rea, with 1,668,610 lines written in 2,423 code files; opencode has 1,028,811 in 3,839.

The proof: [morluto/rea's code at commit d7df9df](https://github.com/morluto/rea/tree/d7df9df3393f77c78a76a06144ff4f515d5db928)

### Which has more GitHub stars, opencode or rea?

rea, with 428,191 stars; opencode has 224,454.

The proof: [morluto/rea on GitHub](https://github.com/morluto/rea)

### Which has more tests, opencode or rea?

rea, with 3,518 test files; opencode has 1,608.

The proof: [morluto/rea's code at commit d7df9df](https://github.com/morluto/rea/tree/d7df9df3393f77c78a76a06144ff4f515d5db928)

### Which was updated more recently, opencode or rea?

Both got their last push on November 4, 2026.

The proof: [anomalyco/opencode's commits on GitHub](https://github.com/anomalyco/opencode/commits)

### Which has more commits signed by AI, opencode or rea?

rea: an AI signed 16.3% of its commits, with Claude Code, Codex, Cursor, Factory, GitHub Copilot, and Devin; in opencode, 0.3%.

The proof: [the commits each tool signed in morluto/rea](https://seerepo.com/r/morluto/rea/ai)

## Sources

- anomalyco/opencode: Read on November 4, 2026, at commit ffe6fed (https://github.com/anomalyco/opencode/tree/ffe6fed58334d921f64a86a8d86128bff5a4b566)
- morluto/rea: Read on November 4, 2026, at commit d7df9df (https://github.com/morluto/rea/tree/d7df9df3393f77c78a76a06144ff4f515d5db928)

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.