> ## 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 allowed VM sizes.

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

## Tiers

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

The monthly credit grant is added to your balance at the start of each billing cycle. Paid tiers allow every VM size; the Free tier is limited to Small and Medium.

<Tabs>
  <Tab title="CLI">
    ```bash theme={null}
    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 through a hosted checkout.
  </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  | 8 shared CPUs      | 2 GB   | 5 GB    | 5              |
| Medium | 8 shared CPUs      | 4 GB   | 10 GB   | 10             |
| Large  | 2 performance CPUs | 8 GB   | 20 GB   | 20             |
| XL     | 4 performance CPUs | 16 GB  | 20 GB   | 40             |

Medium is the default when a task is created without an explicit size. `performance` is an alias for Large. 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={null}
    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, manage or cancel a subscription with `aether billing portal`.
</Note>