Curating the hidden instructions behind popular chatbots
It exists to collect and preserve leaked system prompts from widely used LLM services before they disappear.

What it does
This repository gathers leaked system prompts from widely used LLM-based services into a single, structured collection. Contributors submit documents through pull requests or issues, and the maintainer verifies each leak against reproducible prompts or verifiable sources before merging. The result is a curated reference library of instructions that normally live behind an API.
The interesting bit
The collection is explicitly cited in academic papers, making it a de facto research dataset for studying commercial prompt engineering. The maintainer also walks a careful line around DMCA takedowns by refusing sensitive commercial source code, focusing only on the prompt text itself.
Key highlights
- Only accepts submissions with verifiable sources or reproducible prompts.
- Maintained through both PRs and Issues, with the owner doing manual vetting.
- Explicitly referenced in research papers studying LLM behavior.
- Avoids hosting sensitive source code to minimize legal risk.
Caveats
- The README does not list which specific services or models are represented.
- It is unclear what threshold makes a prompt “reproducible” versus simply claimed.
Verdict
Useful for researchers, prompt engineers, and the AI-curious who want to see how closed chatbots are instructed. Not a tool for developers building or deploying their own models.
Frequently asked
- What is jujumilk3/leaked-system-prompts?
- It exists to collect and preserve leaked system prompts from widely used LLM services before they disappear.
- Is leaked-system-prompts open source?
- Yes — jujumilk3/leaked-system-prompts is an open-source project tracked on heatdrop.
- How popular is leaked-system-prompts?
- jujumilk3/leaked-system-prompts has 14.9k stars on GitHub and is currently cooling off.
- Where can I find leaked-system-prompts?
- jujumilk3/leaked-system-prompts is on GitHub at https://github.com/jujumilk3/leaked-system-prompts.