---
title: "Capability class · Glossary · Agentic Atlas"
description: "Capability class: the corpus's way of saying which model without naming one: an ordering, never a set of named buckets."
canonical: "https://agentic-atlas.dev/glossary/capability-class"
last-updated: "2026-09-23"
---

1. [Agentic Atlas](https://agentic-atlas.dev/)
2. [Glossary](https://agentic-atlas.dev/glossary)
3. Capability class

Glossary definition

# Capability class

Atlas key

capability-class

Catalog order

06

Used in

2 sections

Catalog revision · e0cb75881244b1a82193ca738b82a0d508dd62e822524ae82873ec79d51dbb61

the corpus's way of saying *which model* without naming one: an **ordering**, never a set of named buckets. A node says *same class*, *lower class*, *higher class* and never has to say what "frontier" means — an ordering with no named levels has nothing in it to go obsolete on a vendor's release schedule. One superlative is admitted, for a claim with no second model to be read against: *the highest class the claim's own dated evidence covered*, which is why it is only available to a claim that names its evidence. Relational ratios stay primary; class is reached for only where a ratio cannot reach. The node speaks in classes and ratios; the research memo names the exact model, version and date. (ADR 0018)

[Browse the complete glossary](https://agentic-atlas.dev/glossary)

## Used in

- [The Context Economy](https://agentic-atlas.dev/nodes/context-economy#model-and-claims-the-price-list) Model and claims · 1 mention
- [Verification Asymmetry](https://agentic-atlas.dev/nodes/verification-asymmetry#model-and-claims) Model and claims · 1 mention