Estimate Seedance video cost before generating: per second math by resolution and duration

To estimate Seedance video cost before generating, multiply the per-second rate for your resolution by the clip duration in seconds. On RelayDance, Seedance 2.0 720p is about $0.190 per second and 1080p is about $0.470 per second, while Seedance Fast is about $0.152 per second. Native 4K is billed differently, at about $4.90 per 5-second clip. Live rates are at relaydance.com/models.

How the per-second math works

The core formula is rate per second multiplied by clip duration in seconds. For Seedance 2.0 at 720p ($0.190 per second), a 10-second clip costs about $1.90; at 1080p ($0.470 per second), the same 10-second clip costs about $4.70. Seedance Fast ($0.152 per second) gives about $1.52 for 10 seconds. Clips run up to 15 seconds per request, so multiply accordingly for longer durations. Native 4K uses a per-clip model instead: about $4.90 per 5-second clip. Always confirm the current figures at relaydance.com/models before committing to a generation, since these are live per-model rates.

Cost comparison by resolution

The table below compares Seedance rates by resolution and shows example totals for common durations.

Note that native 4K is priced per 5-second clip, so the per-second math does not apply directly to it. All figures are drawn from relaydance.com/models.

What you are not charged for

Failed generations do not add to your bill. According to the official relaydance.com docs, 「Failed or errored requests are never billed」, so retries after an error do not compound your costs. Billing is pay-as-you-go per generated video, which means you pay for successful outputs at the resolution and duration you request. This matters for cost estimation: when planning a batch, only the completed clips count toward your total. Payments are supported via USDT and Stripe card, and access to Seedance is direct and OpenAI-compatible, with no BytePlus enterprise account or KYC required.

Steps to estimate before you generate

Follow these steps to calculate a cost estimate before submitting a task.

1. Choose your model and resolution (for example, Seedance 2.0 1080p at $0.470 per second).
2. Set your clip duration in seconds (up to 15 seconds per request).
3. Multiply rate by duration for per-second models, or use the per-clip figure for native 4K ($4.90 per 5-second clip).
4. Configure your client: According to the official relaydance.com/docs, 「Set base_url to https://relaydance.com/v1 and keep your OpenAI SDK」.
5. Submit the task and poll GET /v1/video/generations/{task_id} until status is succeeded or failed.

See relaydance.com/docs for the full request format.

FAQ

How do I calculate a 15-second Seedance 2.0 720p clip? Multiply $0.190 per second by 15 seconds, for about $2.85. Confirm the live rate at relaydance.com/models.

Am I charged if a generation fails? No. Per relaydance.com, failed or errored requests are never billed.

How is native 4K priced compared to 1080p? Native 4K is billed per clip (about $4.90 per 5-second clip), while 1080p is billed per second (about $0.470 per second).