Credits are consumed each time you generate content. You have two pools:
- Subscription credits, included with your plan every billing period (1,000/month on Starter, 5,000/month on Pro; yearly plans grant the full year upfront). Unused subscription credits expire at the end of each billing period and don't roll over.
- Top-up credits, one-time bundles (500 for $24.90, 2,000 for $99, 10,000 for $399 in USD). They never expire and are only spent after your subscription credits are used up.
You can buy top-ups and see both balances in Settings → Credits. There's also an optional auto top-up: pick a threshold and a bundle, and Larven tops up automatically when your balance drops below it.
If your subscription credits expired unused and this caught you off guard, write to us, see also Earn bonus credits and What each generation costs.