Credit Billing
How credit billing works
This page applies to organizations enrolled in credit billing. Availability depends on your organization. Check the Studio billing page for your plan and credit balance. Organizations on usage-billed plans should use the Billing guide.
Credit plans give you a predictable bill. Your subscription comes with a set number of credits each month, and you spend them as you generate. The monthly charge stays the same no matter how much you use, and there are no separate usage invoices. If you run low before your next refill, you can top up in seconds.
1 credit covers $0.01 of generation usage. A model that costs $0.05/sec consumes 5 credits/sec. The price of purchased top-up credits depends on your plan; see Top-ups.
Credit plans
Every paid plan includes a monthly pool of credits. Your concurrency and maximum video length grow as you move up.
These are the default concurrency limits. If your account has a higher custom concurrency allowance, that higher limit applies.
Hobby outputs carry a watermark. Starter, Pro, and Team include watermark-free outputs when a clean output is available. File limits are measured in binary units: 1 MiB is 1,048,576 bytes, and 1 GiB is 1,073,741,824 bytes. Transport limits can be lower; see Asset Uploads.
Credit plans do not include the Batch API, which requires Scale or Enterprise and approval for your organization. To run several generations at once on a credit plan, send POST /v2/generate requests in parallel within your concurrent-job limit.
If you’re running at higher volume or want a custom credit allotment, talk to sales about an Enterprise plan.
Free tier
Free accounts don’t use credits. The video allowance is 3 shared free video generations per month, up to 15 seconds each on free-eligible models, including up to all 3 on sync-3, plus 10 combined text-to-speech and dubbing generations. Up to 3 of those 10 can be dubbing, with a 20-second source limit per free dub. Free built-in text-to-speech accepts up to 320 characters and 20 seconds of speech per request. If you do not use dubbing, all 10 can be text-to-speech. No credit card required. Credits start once you subscribe to a paid plan.
How credits are spent
You’re charged per generation, based on the model you pick and how long your output runs. For lip sync, we count the frames in your output and multiply by the model’s per-frame credit rate. TTS and dubbing use audio duration. Since 1 credit = $0.01, each rate is the cent value of the model’s per-second price (shown here at 25 fps):
So a 30-second lipsync-2-pro generation runs about 250 credits (30 × 8.3).
Use Get Generation Costs to check a past generation’s recorded costs. Credit amounts are reported at their face value of $0.01 per credit, which can differ from the cash price paid for the credits.
If a generation is refunded, its credits return to your balance. Your credit usage history marks it refunded and keeps the original deduction visible.
dubbing credit pricing
The updated standard dubbing rate is 10 credits per second (600 credits per minute) on all credit plans. Until the update is enabled for your account, the previous rate of 1.6 credits per second (96 credits per minute) applies. This rollout is independent of usage-billed subscription renewals. Negotiated enterprise and pilot terms remain unchanged.
Check the displayed estimate before starting a dub, then review the completed charge in your usage history.
The dubbing charge covers audio only. Lip sync adds the selected model’s credit charge. When dubbing uses your connected ElevenLabs API key, the provider bills that audio usage instead of Sync deducting dubbing credits; Sync lip sync charges still apply.
The 600-credit rate is the same across credit plans. It is not a promise of a $6 cash purchase: top-up credit prices vary by plan.
Monthly grants and rollover
Unused credits carry over. Your plan’s credits arrive at the start of each billing period, and anything left over stays usable through the end of the next period before it expires. That gives you a one-month cushion for uneven months, without balances piling up forever.
When you generate, we always spend your soonest-to-expire credits first, so you never lose credits you could have used.
Top-ups
You can add credits any time, in two ways.
Top-up prices differ from the value used to calculate generation consumption:
One-time purchase
Buy 500–50,000 credits on demand from the subscription page. The checkout shows the credit quantity and the price for your plan before payment. Credits are granted after successful payment.
Automatic top-up
Automatic top-up keeps your balance from running out without manual purchases. Choose a threshold from 0 to 50,000 credits and a recharge amount from 500 to 50,000 credits. Both values are required when enabling it. When your balance drops below the threshold, we add the recharge amount and charge the card on file at your plan’s top-up rate.
Top-up credits never expire while you’re subscribed. They sit on your balance until you use them, and we only spend them once your monthly plan credits run out. If automatic top-up stops, check your payment method and top-up settings. When you cancel, remaining credits are forfeited as described under Changing plans.
Changing plans
Upgrade, downgrade, or cancel any time from the subscription page.
- Upgrades take effect immediately. Your new tier’s credits land right away, and credits from your old tier keep their one-month rollover.
- Downgrades keep your current credits, rollover and all, and apply the new monthly allotment at your next billing period.
- Cancellation returns you to the free plan when your subscription ends. At that point every remaining credit is forfeited, including credits you bought through top-ups, and they don’t come back if you resubscribe. Use them before the subscription ends.
If a full refund leaves every paid invoice on a self-serve subscription fully refunded, the subscription ends immediately. In this case, purchased top-up credits that were not refunded remain on your account. Contact your account team about negotiated or enterprise plans.
FAQ
What happens when I run out of credits?
Generations pause when you do not have enough credits for a job. An organization owner or admin can buy credits or enable automatic top-up on the subscription page. You can also wait for your next monthly grant. Members see contact admin in Studio and should ask an owner or admin directly.
What if my credit purchase is refused?
Follow the message shown in Studio. If your payment method is declined, update it or try another payment method. If the message asks you to contact support, use the dashboard support chat or email support@sync.so.
Do my monthly plan credits roll over?
Yes, for one extra billing period. Credits granted this month stay usable through the end of next month, then expire. Top-up credits do not expire while you remain subscribed; see Changing plans for cancellation rules.
In what order are my credits used?
Soonest-to-expire first. We spend your monthly plan credits before your never-expiring top-up credits, so you don’t lose credits you could have used.
What happens to my credits if I cancel?
If you cancel, remaining monthly and top-up credits are forfeited when the subscription ends. They do not return if you resubscribe. Automatic cancellation after a full subscription refund has a different rule for unrefunded top-ups; see Changing plans.
Manage your billing
Organization owners and admins can check the balance, buy credits, configure automatic top-up, or change plans on the subscription page. Members should ask an owner or admin to make these changes. If you have a question about a charge or your credits, reach out from the support chat in your dashboard or email support@sync.so.