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Credit Packs

Credit Packs are one-time credit purchases that extend your subscription. When your per-engine credit pool runs out mid-month, pack credits cover the overflow automatically — no plan upgrade, no service interruption.

Most partners buy a pack when a launch campaign or content sprint spikes usage past the monthly allotment. Packs roll forward; they don't reset.

Pack tiers

Pack Credits Price Per-credit Availability
Sample 1,000 $50 $0.050 All accounts
Growth 5,000 $200 $0.040 All accounts
Scale 25,000 $750 $0.030 All accounts
Power 100,000 $2,500 $0.025 Active subscribers

Power is gated to accounts with an active paid subscription. Sample, Growth, and Scale are available to any signed-in account.

How to buy

  1. Sign in to your Vellocity account.
  2. Go to Billing → Credit Packs (or visit /dashboard/user/billing/credits directly).
  3. Click Buy on the pack you want.
  4. Complete checkout via Stripe.
  5. Credits are added to your account the moment Stripe confirms payment.

Checkout is a standard Stripe-hosted flow — your card details never touch Vellocity. Receipts are emailed automatically and also available under Invoice Receipts.

Where pack credits appear

Once purchased, pack credits show up in two places:

  • Navbar pill — a "Pack Credits" counter sits next to your subscription credit indicator (mobile and desktop).
  • Billing page — your current pack balance is listed at the top of the Credit Packs page.

The pack balance is a single cross-engine pool. Unlike subscription credits (which are tracked per engine), pack credits work against any capability that consumes credits.

Consumption order

Vellocity drains credits in a predictable order on every billable request:

  1. Subscription per-engine pool first. If you have subscription credits available for the engine being invoked, those are spent first.
  2. Pack credits second. If the per-engine pool is empty, pack credits cover the request — regardless of which engine it was.

This means a Sample pack can keep a long-running Content Studio session going even after your subscription's Content Studio pool is drained for the month.

The handoff is atomic. Concurrent requests can't double-spend the pack pool: the underlying check is a single UPDATE … WHERE purchased_credits >= cost SQL statement, so the second request sees the post-debit balance and either succeeds against remaining credit or fails cleanly.

Per-engine cost multipliers

Most models cost 1 credit per unit. Two engines are weighted differently to reflect their actual cost-to-serve:

Engine Multiplier
OpenAI 1.5×
DeepSeek 0.5×
All other 1.0×

A 1,000-credit Sample pack covers ~1,000 standard requests, ~666 OpenAI requests, or ~2,000 DeepSeek requests, holding all other variables equal.

Rollover, expiration, and refunds

  • Rollover: pack credits roll forward indefinitely. Unused credits do not reset on the subscription renewal date.
  • Expiration: packs do not currently expire. If this changes, we will notify you in advance and grandfather existing balances.
  • Refunds: packs are one-time charges. Refunds are issued for unused credits within 14 days of purchase. Reach out at support@vell.ai.

Frequently asked

Can I buy multiple packs? Yes. Pack purchases stack — buy a Growth in March and a Scale in April and your pack balance is 30,000 credits.

Do pack credits count toward my plan's monthly cap? No. The plan cap measures only the per-engine subscription pool. Packs are independent.

Can a team member spend pack credits? Yes, if they're a seat on the account. Pack credits belong to the account, not the user — anyone with billable access can draw from them.

What happens to pack credits if I cancel my subscription? Pack credits remain available against any capability that doesn't require an active subscription. Power-pack-only and capability-locked features stop working at the end of the billing period; non-gated capabilities continue to consume from the pack balance.

I bought the Power pack but I'm seeing "subscriber-only" — what gives? The Power tier requires an active paid subscription at the moment of purchase. If your subscription lapses after purchase, the credits remain, but new Power-pack purchases will be blocked until you re-subscribe.