# The Key 4 AI

> A key, not a subscription. AI transformation and agentic AI, done so that what you are left holding is yours: narrow, cost-effective, owned and provable models and agents, decided, built, proved and run. Three doors carry the craft: For you (engagements), With you (the Studio, building companies), By you (The Key 4 Learning, teaching the craft).

The Key 4 AI takes one role per model: it either builds and stands behind a model, or independently assures one, never both for the same model. See /rule/.

## Pages

- [Home](https://thekey4.ai/)
- [For you](https://thekey4.ai/for-you/)
- [With you](https://thekey4.ai/with-you/)
- [By you](https://thekey4.ai/by-you/)
- [Craft](https://thekey4.ai/craft/)
- [Prove](https://thekey4.ai/prove/)
- [Different regulators, one sentence](https://thekey4.ai/regulators/)
- [Products](https://thekey4.ai/products/)
- [Clarify](https://thekey4.ai/products/clarify/)
- [The Rule](https://thekey4.ai/rule/)
- [Company](https://thekey4.ai/company/)
- [Contact](https://thekey4.ai/contact/)
- [The Ledger](https://thekey4.ai/ledger/): every claim made, with its status, dated and append-only.
- [Library](https://thekey4.ai/library/): everything published, with dates, versions and status.

## Library

- [An agent you can hold](https://thekey4.ai/library/an-agent-you-can-hold/): working note, v0.1, published. Why agentic AI makes proof more urgent, not less, and what it means to hold an agent rather than rent one: orchestration you can inspect, tools you can enumerate, harnesses that grade the outcome, and one role per agent.
- [Clarify, product brochure](https://thekey4.ai/library/clarify-brochure/): brochure, v0.1, published. What Clarify does, how it differs from a traditional learning system or an AI tutoring app, and where it stands today.
- [Different regulators, one sentence](https://thekey4.ai/library/different-regulators/): working note, v0.2, published. Thirteen regulators and standards bodies, sorted by date, each quoted from its primary text on the same demand: prove what your model does. Statuses stated as they are.
- [The Key 4 AI, Organization Profile](https://thekey4.ai/library/profile/): document, v1.0, published. The company's vision, mission and values, the three doors, and where the company stands today, in one document.
- [The Rule](https://thekey4.ai/library/the-rule/): document, v0.1, published. One role per model. We build it, or we assure it. Never both. The company's governing rule for how it separates building from proving.
- [Vision, mission and values](https://thekey4.ai/library/vision-mission-values/): document, v1.0, published. The vision line, the mission paragraph, and the six values, written down before any of them cost the company anything.

## Machine surfaces

- [llms-full.txt](https://thekey4.ai/llms-full.txt): the visible text of every page, concatenated.
- [sitemap.xml](https://thekey4.ai/sitemap.xml)
- [Ledger feed](https://thekey4.ai/ledger/feed.xml)
- [Library feed](https://thekey4.ai/library/feed.xml)

## Contact

info@thekey4.ai