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

# Pricing & Tiers

> Subscription tiers, included credits and warm slots, credit packs, and VM sizes.

Aether has four subscription tiers and four one-time credit packs. Tiers determine your monthly credit grant and how many [warm slots](/concepts/warm-slots) you get. New accounts start on the Free tier.

## Tiers

| Tier | Price / month | Credits / month | Warm slots |
| - | - | - | - |
| Free | \$0 | 20 | 1 |
| Starter | \$30 | 400 | 2 |
| Pro | \$75 | 2,000 | 3 |
| Max | \$120 | 4,000 | 5 |

The monthly credit grant is added to your balance at the start of each billing cycle. Every tier can use every VM size; larger runtime classes consume credits at higher per-hour rates.

<Tabs>
  <Tab title="CLI">
    ```bash theme={"dark"}
    aether billing catalog
    ```

    Lists every tier with its price, credits, and warm slots. `aether billing subscription` shows your current tier and `aether billing summary` combines subscription and balance.
  </Tab>

  <Tab title="Web">
    The billing settings page lists tiers and lets you upgrade from Free through a hosted checkout. Paid plans change in the billing portal: upgrades apply immediately with a prorated charge and prorated credits, downgrades take effect at your next renewal.
  </Tab>
</Tabs>

## VM sizes

Each VM size is a fixed runtime class with a fixed shape and per-hour credit rate. See [Billing & Credits](/concepts/billing-and-credits) for what credits buy.

| Size | CPU | Memory | Storage | Credits / hour |
| - | - | - | - | - |
| Small | 1 performance CPU | 4 GB | 20 GB | 5 |
| Medium | 2 performance CPUs | 8 GB | 20 GB | 10 |
| Large | 4 performance CPUs | 16 GB | 20 GB | 20 |

Every size runs on dedicated performance CPU cores, so sustained work — dependency installs, builds, test suites — runs at full speed for the whole task. Each size doubles the previous one: N cores, 4N GB of memory, 5N credits per hour.

Every task is created with an explicit size, resolved from `--size`, then the project's default task size, then `small`. GPU runtime classes are not available.

## Credit packs

Credit packs are one-time purchases that top up your balance beyond your monthly grant. They are available on any tier.

| Pack ID | Credits | Price |
| - | - | - |
| `credits_100` | 100 | \$10 |
| `credits_250` | 250 | \$25 |
| `credits_500` | 500 | \$50 |
| `credits_1000` | 1,000 | \$100 |

Credit-pack credits **expire 12 months after purchase**. When you spend, subscription-grant credits are used before pack credits, and packs are drawn down earliest-expiry-first.

<Tabs>
  <Tab title="CLI">
    ```bash theme={"dark"}
    aether billing credit-packs
    aether billing checkout --credit-pack credits_250
    ```

    The first command lists packs; the second opens a hosted checkout for the chosen pack. Use `--tier starter|pro|max` instead of `--credit-pack` to subscribe to a tier.
  </Tab>

  <Tab title="Web">
    Buy packs from the billing settings page through a hosted checkout.
  </Tab>
</Tabs>

<Note>
  Checkout and billing-portal flows require a payment provider to be configured for the deployment. Where it is, change, manage, or cancel a subscription with `aether billing portal`.
</Note>


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