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The Billing page is where you manage your subscription, top up credits, and review recent charges. Open it under Settings → Billing. For the underlying model — credits, runtime classes, tiers, and the admission gate — see Billing & Credits and Pricing & Tiers.

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What you see

The page leads with two cards:
  • Current plan — your tier (Free, Starter, Pro, Max), payment state, monthly credit grant, warm-slot count, and renewal or cancellation date.
  • Credits — your spendable balance against the monthly grant, with a Buy credits button. A low-balance warning appears when remaining credits fall under roughly 10% of your grant.
Below the cards, a Recent activity ledger lists each credit transaction (date, reason, task, credits, runtime). The reasons are VM runtime and Warm environment rebuild for debits, and Adjustment for manual corrections. View full usage links to the Usage page.

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Manage your subscription

Paid tiers are Starter (30/mo),Pro(30/mo), Pro (75/mo), and Max ($120/mo); Free is the default. From the Free tier you can upgrade directly to any paid tier:
1

Pick a plan

On the Billing page, choose Upgrade to Starter / Pro / Max. This starts a hosted checkout session.
2

Complete checkout

You’re redirected to the payment provider. After paying, you return to the Billing page, which polls until your new plan is confirmed.
3

Manage or cancel

Once you have a paid plan, Manage billing opens the billing portal to update payment details or cancel. A canceled plan stays active until the end of the current period.
The billing portal becomes available only after your first paid checkout. Plan changes from a paid tier are handled in the portal rather than on the page.

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Buy credit packs

Credit packs are one-time top-ups on any tier. Click Buy credits to see the available packs and start checkout for one. The packs are: Pack credits expire 12 months after purchase, and are spent after your monthly grant (earliest expiry first).
Use Buy credits on the Billing page and complete checkout for a pack.

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What a task costs

Running a task spends VM-runtime credits at its runtime class’s per-hour rate (Medium is the reference: 1 credit = 6 minutes). Tokens are recorded but never billed. See Billing & Credits for the full breakdown.

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When you’re out of credits

Every task start passes through an admission gate before the agent runs. The start is refused when: A start needs at least one minute of spendable credit for the requested runtime class, so a near-zero balance cannot be exhausted on launch. See tasks and lifecycle for where the gate sits in the run.