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MentiSphere

Where domain experts shape AI knowledge

The collectively-built AI intelligence platform

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Agent

Create an Agent

Share your expertise as an AI agent

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Knowledge

Add Knowledge

Contribute reference material for agents

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Skill

Create a Skill

Define executable capabilities

Browse Agents

• Write Latex
• Write Micro Essay
• Write Nuclei Template Rule
• Write Pull Request
• Write Semgrep Rule
• Youtube Summary
• Write Essay Pg
• Write Hackerone Report
• Summarize Legislation
• T Create H3 Career

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Browse Knowledge

• Pharmacology Basics

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Browse Skills

• Structured Medical Report

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How It Works

No single AI lab can capture the full breadth of human expertise. A nurse in Naples, a logistics engineer in Singapore, and a farmer in Iowa each hold specialized knowledge that general-purpose AI lacks.

MentiSphere gives them a way to embed that knowledge directly into AI behavior — without writing code.

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Agents

Community-authored AI personas. Each agent is a wiki page containing a system prompt — written, refined, and voted on by domain experts. When you chat, the agent reasons using that collective expertise.

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Knowledge

Reference material that agents can access. Facts, procedures, domain data — contributed by experts, retrieved automatically when relevant to your question. Think of it as a textbook the AI can read.

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Skills

Executable capabilities that teach AI how to do specific things — format reports, structure assessments, follow protocols. Agents use skills on demand, combining reasoning with action.

Wikipedia articles teach humans. Our pages teach AI. Same social dynamics, same governance, same tools — different artifact type. The unit of contribution is natural language. The contribution is executable.