Billing

Use the Estimate Cost endpoint to calculate lip sync generation costs before submitting a job. This is useful for building cost controls into your application.

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import { SyncClient } from "@sync.so/sdk";
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const sync = new SyncClient();
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const estimate = await sync.generations.estimateCost({
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    input: [
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        { type: "video", url: "https://your-cdn.com/video.mp4" },
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        { type: "audio", url: "https://your-cdn.com/audio.wav" },
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    ],
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    model: "lipsync-2",
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});
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console.log(`Estimated cost: $${estimate.totalCost}`);
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console.log(`Estimated frames: ${estimate.totalFrames}`);

Cost varies by model. Higher-quality models like lipsync-2-pro cost more per frame than lipsync-2 or lipsync-1.9.0-beta. See the pricing page for per-model rates.

Your subscription unlocks platform features like higher concurrency, longer video durations, and watermark removal (Creator+). Usage fees are separate—you pay for each generation based on the model and output duration.

No. Your subscription fee covers platform access and feature unlocks. Video generations are billed separately based on usage.

There’s no limit on the number of videos. Your subscription unlocks capabilities (concurrency, max duration, etc.), and each generation is charged based on output frames.

Usage charges accumulate as you generate. Each time your usage hits your tier’s threshold, an invoice is automatically created and charged. If you generate a lot, you may hit the threshold multiple times in a month.

If you have an unpaid usage invoice, generations are blocked until it clears. Check your billing settings in the dashboard to see if there’s an outstanding invoice warning.

Subscription covers platform access, concurrency limits, max video duration, watermark removal (Creator+), and access to subscription-only models like react-1. Usage fees cover the actual compute cost of each generation.

Watermarks are removed on Creator plans and above. Hobbyist and free accounts will see a sync watermark on generated videos.

We take the frames from your output video at 25fps and multiply by the per-frame price for the model you used. Different models have different rates—check our pricing page for details.

Usage shown in the dashboard is real-time, while invoices are generated when thresholds are hit. There may be a small delay between usage accruing and the invoice being created. If something looks off, reach out to support.

No. To unlock usage-based billing, you need to subscribe to one of our plans. Free accounts get 3 generations per month but can’t pay for additional usage without subscribing.

Cancellation takes effect at the end of your billing cycle—you keep access until then. If you generate during this period, usage charges still apply and will be billed at the normal thresholds.

Sync uses Stripe to process all payments. If your card is declined, first verify your card number, expiration date, and CVC are entered correctly. Contact your bank to check whether international transactions are blocked, since Stripe processes payments through US-based infrastructure. Try a different card or payment method if the issue persists. If the pay button is missing or unresponsive, clear your browser cache, disable ad blockers, and reload the page. When a payment fails, Stripe retries the charge automatically for up to 5 days before cancelling your subscription. For persistent payment errors, email support@sync.so with your account email and the exact error message displayed so the team can investigate the charge on Stripe’s end.

When you cancel your Sync subscription, access continues until the end of your current billing period — cancellation does not take effect immediately. Any usage-based charges you incur before that period ends are still billed when they hit your tier’s invoice threshold or at the close of the cycle. For example, if you cancel mid-month on the Creator plan but generate videos totaling $20 in usage before the period ends, that usage invoice is charged to your card automatically. Check your generation history at sync.so/billing/usage to verify which charges correspond to which generations. If you believe a post-cancellation charge is incorrect, contact support@sync.so with your account email and the invoice ID from your billing dashboard.

Generation limits depend on your plan tier. Free accounts receive 3 generations per month with a maximum duration of 20 seconds per video, and all free outputs include a watermark. Paid plans — Creator ($35/month), Growth ($99/month), Scale ($399/month), and Enterprise (custom) — have no per-generation cap. Instead, you pay per second of processed output based on the model:$0.02–$0.025/sec for lipsync-1.9.0-beta,$0.04–$0.05/sec for lipsync-2, and$0.067–$0.083/sec for lipsync-2-pro. Watermarks are removed on all paid plans. Maximum video duration increases with each tier. Use the Estimate Cost endpoint or the Studio playground cost estimator to calculate costs before submitting a generation job.

You can change your subscription tier at any time from the billing page in your Dashboard at sync.so/billing/subscription. Upgrades take effect immediately — Stripe charges the prorated difference between your current plan and the new plan for the remainder of your billing period, so you only pay for the days remaining. Downgrades take effect at the start of your next billing cycle, meaning you keep your current tier’s features until that cycle ends. If you are an academic institution, nonprofit, or high-volume user, discounted pricing may be available — contact sales@sync.so or support@sync.so with details about your organization, project scope, and expected monthly usage to discuss custom terms.

Sync bills your subscription fee and your usage fees as separate line items, which is why you may see two or more charges from Sync in a single month. Your subscription fee (for example, $35/month on Creator) is charged on your billing date each month. Usage fees are charged separately whenever your accumulated generation costs reach your tier's invoice threshold —$6 for Hobbyist, $20 for Creator,$50 for Growth, or $250 for Scale. If you generate heavily, you can hit the usage threshold multiple times in one billing period, resulting in several usage invoices plus your subscription charge. View a full breakdown of every charge, including timestamps and amounts, in your Dashboard under Billing.