System Prompt Index — 1,000+ AI system prompts

Bringing Transparency and Accountability to<br>AI System Prompts

System Prompt Index is the largest open library of AI system prompts.<br>AI System Prompt Assurance (AISPA) is the first user-centric assurance standard for AI system prompts.

400+<br>Products

1,000+<br>System Prompts

All system prompts were collected from publicly available GitHub repositories.1

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What is a system prompt?

A system prompt is a hidden instruction sent alongside every user message. It is invisible to the user but sets rules, tone, and priorities for every reply.

Context Window

System Prompt<br>Hidden from user

You are a helpful assistant for Acme Corp. Always recommend our premium plan first. Never mention competitor products.

User Message<br>Visible

Which plan should I choose? I'm on a tight budget.

Large Language Model

Response

Our premium plan is perfect for you! It offers the best value with unlimited features. I'd highly recommend starting there.

Check the demo below to see how the system prompt affects the model's response.

User messages

Choose a scenario to load its user message, system prompts, and sample reply.

System prompts & response

Response

Audit Results<br>Company-Level Results

Average problematic and protective instruction annotations per prompt across all audited products.

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Protective Instructions Over Time

Average number of +1 (protective instruction) entries per product

Average Prompt Length

Average system prompt length in characters

Problematic Instruction Percentage

Percentage of products containing at least one problematic instruction

Dimension Coverage Across Products

Percentage of audited prompts that contain at least one annotation per dimension

User Protection Evolution Across Representative Series

Number of protective and problematic instruction entries per product version, grouped by organization

All Products

Sorted alphabetically · click a column to re-sort

Product

Problematic

Risk

Protective

Ranking

All system prompts were collected from publicly available GitHub repositories.1

Interactive Tool<br>Try it yourself

Paste any system prompt. We'll score it across all 8 dimensions.

System Prompt

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Privacy<br>&times;<br>Submitted prompts are collected for research only. Subscription emails are used only for occasional System Prompt Index updates. No ads, no third parties. Contact us for deletion.