> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aieev.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Core concepts for understanding AirCloud

This document introduces the core concepts you should understand when getting started withdocument introduces the core concepts you should understand when getting started with AirCloud.

<Info>
  If you are new to AirCloud, we recommend reviewing the [Quickstart](/docs/get-started/quickstart) first to understand the overall flow
</Info>

## Organization

An Organization is the top-level unit that groups users and projects. Create an Organization based on a team, company, or operating entity. Member invitations and permission management are also handled at the Organization level.

<Warning>
  Each account can belong to only one Organization. Once you create or join an Organization, you cannot be invited to another Organization. If you need to change your Organization, please contact your administrator.
</Warning>

## Project

A Project is a workspace for deploying and operating Air API and Air Container. Usage, endpoints, and monitoring data are all managed at the Project level. You can create multiple Projects within a single Organization to separate environments by service or team.

## Air API

Air API allows you to integrate AI models through an API without setting up infrastructure yourself. After selecting a model in your Project and generating a secret key, you can start testing immediately using code examples or the Playground.

## Air Container

Air Container allows you to deploy your own container images to AirCloud. It gives you control over the full deployment environment, including GPU resources, runtime libraries, port settings, and autoscaling. This option is suitable for custom model servers or complex pipelines that need to run as-is.

## Endpoint

An Endpoint is a URL used to send external requests to a deployed service. Both Air API and Air Container are accessed through their respective Endpoints. Within a Project, you can view status, usage, logs, and scheduling settings for each Endpoint.

## Replica

A Replica is a copy of the same service running concurrently. Increasing the number of Replicas allows the service to handle more requests at the same time. Replicas can be adjusted manually or automatically through autoscaling.

## Autoscaling

Autoscaling automatically increases or decreases the number of Replicas based on request traffic. By setting minimum and maximum values, you can reduce costs during low-traffic periods and automatically expand capacity when traffic increases.

## AirCloud Zero and AirCloud Plus

AirCloud Zero and AirCloud Plus are two infrastructure options provided by AirCloud. They differ fundamentally in how nodes are organized and how resources are allocated Zero and AirCloud Plus are two infrastructure options provided by AirCloud. They differ fundamentally in how nodes are organized and how resources are allocated.

**AirCloud Zero** is a distributed cloud pool built by crowdsourcing resources from various participants, such as PC cafés, mining operators, and individuals with idle compute resources. Because resources are allocated on a Spot basis, AirCloud Zero can be used at a lower cost than AirCloud Plus. However, interruptions may occur when resources are reclaimed, making it suitable for workloads that can tolerate interruptions. AirCloud Zero is currently being prepared for launch and will be available soon.

**AirCloud Plus** is a distributed cloud pool composed of dedicated AI compute nodes operated and managed directly by AIEEV. Resources are allocated on an On-demand or Reserved basis, allowing workloads to run reliably without interruption. It is suitable for production services that require continuous operation or workloads where predictable performance is important.

<Note>
  🛡️ **AirCloud Plus — ISO 27001 Certified**

  Suitable for workloads with enterprise-grade security and compliance requirements.
</Note>

|          Item          |                     AirCloud Zero (Coming Soon)                    |                              AirCloud Plus                              |
| :--------------------: | :----------------------------------------------------------------: | :---------------------------------------------------------------------: |
|     Infrastructure     | Crowdsourced idle resources, such as PC cafés and mining operators |          Dedicated AI compute nodes operated directly by AIEEV          |
|    Allocation model    |                   Spot — interruptions may occur                   |                 On-demand / Reserved — stable allocation                |
|    Relative pricing    |                             Lower cost                             |                             Higher than Zero                            |
|   Suitable workloads   |      Cost-sensitive workloads that can tolerate interruptions      | Production workloads that require stability and uninterrupted operation |
| Security certification |                                  —                                 |                              🛡️ ISO 27001                              |
|      Availability      |                             Coming soon                            |                              Available now                              |

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