# zebbern/no-cost-ai architecture

> Architecture diagram of the GitHub repository zebbern/no-cost-ai, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-11-15). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/zebbern/no-cost-ai
- Repository: https://github.com/zebbern/no-cost-ai

## Overview

This repository is a human-maintained directory of AI services, not an application that generates AI results itself. Visitors browse listings by signup requirement and capability, consult model/usage details and leaderboards, then follow links to external services. The README also invites contributions, but the repository tree and available excerpts do not show a contribution workflow or runtime implementation.

Main entry points: [`README.md`](https://github.com/zebbern/no-cost-ai/blob/main/README.md) (AI Services Index)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_catalog["Service Catalog"]
  node_index["AI Services Index<br/>[README.md]"]
  node_no_signup["No-Signup Listings<br/>[README.md]"]
  node_signup["Signup Listings<br/>[README.md]"]
  node_capabilities["Capability Categories<br/>[README.md]"]
end

subgraph group_discovery["Model Discovery"]
  node_leaderboards["Leaderboards<br/>[README.md]"]
end

subgraph group_destinations["External Destinations"]
  node_service_sites{{"AI Service Sites"}}
  node_ranking_sites{{"Leaderboard Sites"}}
end

node_visitor(("Visitor"))
node_contributors(("Contributors"))

node_visitor -->|"browses"| node_index
node_index -->|"lists"| node_no_signup
node_index -->|"lists"| node_signup
node_no_signup -->|"groups by"| node_capabilities
node_signup -->|"groups by"| node_capabilities
node_no_signup -->|"links to"| node_service_sites
node_signup -->|"links to"| node_service_sites
node_index -->|"lists"| node_leaderboards
node_leaderboards -->|"links to"| node_ranking_sites
node_contributors -.->|"may contribute"| node_index

click node_index "https://github.com/zebbern/no-cost-ai/blob/main/README.md"
click node_no_signup "https://github.com/zebbern/no-cost-ai/blob/main/README.md"
click node_signup "https://github.com/zebbern/no-cost-ai/blob/main/README.md"
click node_capabilities "https://github.com/zebbern/no-cost-ai/blob/main/README.md"
click node_leaderboards "https://github.com/zebbern/no-cost-ai/blob/main/README.md"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_index,node_no_signup,node_signup,node_capabilities toneBlue
class node_leaderboards toneAmber
class node_service_sites,node_ranking_sites toneMint
class node_visitor,node_contributors toneIndigo
```

## Components

### Service Catalog

- [AI Services Index](https://github.com/zebbern/no-cost-ai/blob/main/README.md): `README.md`
- [No-Signup Listings](https://github.com/zebbern/no-cost-ai/blob/main/README.md): `README.md`
- [Signup Listings](https://github.com/zebbern/no-cost-ai/blob/main/README.md): `README.md`
- [Capability Categories](https://github.com/zebbern/no-cost-ai/blob/main/README.md): `README.md`

### Model Discovery

- [Leaderboards](https://github.com/zebbern/no-cost-ai/blob/main/README.md): `README.md`

### External Destinations

- **AI Service Sites**
- **Leaderboard Sites**

### Other components

- **Visitor**
- **Contributors**

## Connections

- Visitor → AI Services Index: browses (evidence: `README.md`)
- AI Services Index → No-Signup Listings: lists (evidence: `README.md`)
- AI Services Index → Signup Listings: lists (evidence: `README.md`)
- No-Signup Listings → Capability Categories: groups by (evidence: `README.md`)
- Signup Listings → Capability Categories: groups by (evidence: `README.md`)
- No-Signup Listings → AI Service Sites: links to (evidence: `README.md`)
- Signup Listings → AI Service Sites: links to (evidence: `README.md`)
- AI Services Index → Leaderboards: lists (evidence: `README.md`)
- Leaderboards → Leaderboard Sites: links to (evidence: `README.md`)
- Contributors → AI Services Index: may contribute (evidence: `README.md`)