head to head · open source
CL4R1T4S vs rea-video
CL4R1T4S has 52,080 GitHub stars, 10,628 forks, 127 open issues and last shipped 2 days ago. rea-video has 6,262 stars, 895 forks, 4 open issues and last shipped yesterday. CL4R1T4S leads on adoption by 732% (52,080 vs 6,262 stars). CL4R1T4S is written in various languages under AGPL-3.0; rea-video is written in Python under Apache-2.0. CL4R1T4S has attracted 20% as many forks as stars, rea-video 14%. rea-video was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (prompt-engineering), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| CL4R1T4S | rea-video | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 6.3K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | — | Python |
| Last push | 2026-11-09 | 2026-11-10 |
| Forks | ⑂ 11K | ⑂ 895 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CL4R1T4S if
- You weight community size — 52K stars and counting
- You want the AGPL-3.0 license terms
- You value the larger contributor base for long-term maintenance
pick rea-video if
- You want the rea-video feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and rea-video fits your workflow better
About CL4R1T4S
CL4R1T4S AI SYSTEMS TRANSPARENCY AND OBSERVABILITY FOR ALL! Full extracted system prompts, guidelines, and tools from OpenAI, Google, Anthropic, xAI, Perplexity, Cursor, Windsurf, Devin, Manus, Replit, and more – virtually all major AI models + agents! 📌 Why This Exists "In order to trust the output, one must understand the input." AI labs shape how models behave using massive, unseen prompt scaffolds. Because AI is a trusted external intelligence layer for a growing number of humans, these hidden instructions can affect the perceptions and behavior of the public. These prompts define: What AIs can’t say What…
read the full CL4R1T4S overview →
About rea-video
Reverse engineer any video. Shot by shot: was it filmed, AI generated or coded, and how to remake it. Website 中文 English Русский 日本語 한국어 Español Português Français Deutsch ⭐ Help more people find rea video. Star this repo! Left: a TikTok ad shot on a phone. Right: an AI remake with another product. rea video's verdict: the left is all live footage, one set and two camera positions; the right is all AI, 8 shots across 3 generations. Quick start rea video is built for AI agents. In Claude Code, Codex or any agent that can run commands, say: The agent installs the CLI, learns the workflow and runs the whole thing…
read the full rea-video overview →
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Frequently asked questions
Is CL4R1T4S or rea-video more popular?
CL4R1T4S has 52,080 GitHub stars and rea-video has 6,262. CL4R1T4S has the larger community by that measure.
Are CL4R1T4S and rea-video free?
Both are open source. CL4R1T4S is licensed under AGPL-3.0 and rea-video under Apache-2.0. Neither carries a licence fee.
What is the difference between CL4R1T4S and rea-video?
CL4R1T4S is written in various languages and rea-video in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, CL4R1T4S or rea-video?
Choose CL4R1T4S if you want the larger community (52,080 stars) or its AGPL-3.0 licence terms. Choose rea-video if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.