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

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Tiers

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.
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.

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VM sizes

Each VM size is a fixed runtime class with a fixed shape and per-hour credit rate. See Billing & Credits for what credits buy. 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.

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Credit packs

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