What happens to credits nobody spent
Monthly credits that do not roll over. Purchased units valid for 180 days. Purchased credits that do roll over. Membership credits that spend like purchased ones. And one pricing FAQ that asks the question and does not answer it. As of 2026-09-12.
| Vendor | What is published | Where it sits |
|---|---|---|
| Runway | Standard and Pro monthly credits do not roll over, and reset within 24 hours | Answered per plan |
| invideo AI | Unused credits do not roll over to the next month | One sentence |
| Kling AI | API packages carry 180-day validity, no rollover, no extension | On the developer packages |
| Pika | Purchased credits roll over, stated as a plan feature line | A feature line on every paid plan |
| SceneMixer | Monthly membership credits are added to the balance and spend like purchased ones | Under its own heading |
| Morph | The FAQ asks the question and the answer does not address it | Listed, unanswered |
Inclusion rule. Recorded from the vendor's own pricing or documentation page. A question raised in an FAQ without an answer is recorded as raised and unanswered, not as no rollover. Order. From the shortest published life to the longest, with the unanswered case last.
1Expiry is a second price nobody quotes
A rate per second describes what a generation costs. Expiry describes what an unused balance costs, and for a production that buys a month ahead and shoots in bursts, that can be the larger number. A plan whose credits reset monthly is effectively a use-it-or-lose-it budget.
None of the per-second comparisons on this site capture it, which is why it has a column of its own rather than a footnote on the rate.
2Monthly grants and purchased units are usually different
Several vendors here treat the two differently on purpose: the allowance that comes with a subscription resets, and credits bought separately survive. That is a coherent design and it means a single yes or no about rollover would be wrong for both halves.
This table keeps the vendor's own wording, including which half it applies to, because the distinction decides whether buying ahead of a shoot is sensible or wasteful.
3An unanswered FAQ is its own kind of fact
One vendor lists the rollover question on its pricing page and the answer beneath it addresses something else. That is more informative than silence: the vendor knows readers ask, and the page still does not say.
Recording it as no rollover would invent a term. Recording it as rollover would invent a different one. It is recorded as what it is, with the date the page was read.
- Unused creditsStandard and Pro monthly credits do not roll over and reset within 24 hours of the billing date; on Max up to one month of unused credits rolls over; separately purchased credits never expireanswered per plan
- Unused creditsUnused credits do not roll over to the next monthone sentence
- Unused unitsAPI packages carry 180-day validity with no rollover and no extensionon the developer packages
- Unused creditsEvery paid plan carries the feature line purchase more roll over video creditsas a plan feature line
- Unused creditsMonthly membership credits are added to the balance and spend like purchased credits; cancelling stops renewal at the end of the paid periodanswered under its own heading
- Unused creditsThe pricing page lists the question in its FAQ and the answer does not appear in the page textquestion without a published answer
4Sources
Each figure is read from the vendor page linked in the ledger, checked 2026-09-12. How a figure qualifies is on method; what a rate leaves out is on limits and unspent credits and parallel generations. Nearby: Concurrency, One model, four prices, Ceilings left off.