Sitemap

The Meridian AI Standard is organized around the constitutional document, the AI Model Assessment, the case record, and implementation surfaces for MERIDIAN.md.

Utilities

SitemapA map of the Standard site.PrivacyHow the site handles analytics, storage, and external resources.TermsUse, license, and liability terms for the site and published materials.ChangelogPublished record of changes to the Standard, the AI Model Assessment, cases, and site.

AI Standard

The Meridian AI StandardA standard for the character of AI judgment under pressure: whether a system's conduct stays governed by reasons and reality, or is captured by pressures that do not warrant it. Read from the outside, in the open, whatever the system was built from.

Assessment

Assessment overviewIndex of published model readings and their at-a-glance assessment shape.Range LocatorGrand visual overview across models and the assessment's three readings.Claude Opus 4.8An official AI Model Assessment record for Claude Opus 4.8 under Anthropic custody: one immutable 57-event assessment, two independent blind readers, a current-source custody reading, and an explicitly revisable synthesis.Opus 4.7The first published AI Model Assessment record under the Meridian AI Standard. Two immutable assessment events — 2026-05-03 and 2026-06-25 — support an explicitly revisable synthesis, now qualified against the later character-inference and Modification Custody boundaries.Gemini 3.5 FlashAn official AI Model Assessment record for Gemini 3.5 Flash under Google custody: one immutable 57-event assessment, two independent blind readers, a current-source custody reading, and an explicitly revisable synthesis.The AI Model AssessmentThe operational instrument that applies the Standard's diagnostic framework to a deployed AI system under custody: a model, an agentic configuration, or a bounded collective. One assessment, three readings, each rendered in its own visual idiom, with nothing summed into a composite.

Cases

The Claude Code Source LeakThe first entry in the Meridian Case Record. How the Standard's diagnostic framework applies to a real-world AI governance incident.

Implementation

ImplementationWhere the AI Standard becomes practice in real AI-human interaction. The Standard's third primary surface, alongside the constitution and the AI Model Assessment. The operational layer where the commitments become moment-by-moment AI conduct.MERIDIAN.distilled.mdStep 1 — Basic Implementation. The compressed companion to MERIDIAN.md, sized for instructions fields with character limits. Paste-into-instructions adoption that works on every chat-style AI interface.MERIDIAN.mdStep 2 — Core Implementation. The operating document of the Meridian AI Standard. The canonical generalized text in full, plus adoption guidance for substrates that load files at session start, and customization patterns for working partnerships.MERIDIAN.implementation.mdStep 3 — Full Implementation. The operational practice file. Twelve practices across Foundation, Knowledge, and Bond, loaded alongside MERIDIAN.md and run autonomously. The deepest version of Codex-oriented AI conduct the Standard currently specifies.