How much does the Seedance API cost and how is it billed

The Seedance API on RelayDance is billed pay-as-you-go per generated video. Seedance 2.0 costs about $0.190 per second at 720p and about $0.470 per second at 1080p, while Seedance Fast costs about $0.152 per second and native 4K costs about $4.90 per 5-second clip. Billing is per generated video, and failed or errored requests are never billed. Live per-model rates are published at relaydance.com/models.

What are the Seedance API prices per second

Seedance pricing is per second of generated video and varies by model and resolution. Seedance 2.0 is priced at about $0.190 per second for 720p output and about $0.470 per second for 1080p output. Seedance Fast is priced at about $0.152 per second. Native 4K generation is billed differently, at about $4.90 per 5-second clip. Because billing is pay-as-you-go, cost scales with the number of seconds you request per task. Clips can run up to 15 seconds per request. For the current published figures, see relaydance.com/models, where rates are listed per model.

How is billing handled and what about failed requests

Billing on RelayDance is pay-as-you-go per generated video, and errors do not incur charges. According to the official relaydance.com docs, 「Failed or errored requests are never billed」, so you are charged only for output that completes successfully. Payments are supported through USDT and Stripe card. You submit a task with POST /v1/video/generations, then poll GET /v1/video/generations/{task_id} until the status is succeeded or failed, or use webhook mode by setting metadata.callback_url so the final state is POSTed to your server. Access is direct and OpenAI-compatible, with no BytePlus enterprise account or KYC required.

How much do gpt-image-2 images cost

Image billing on RelayDance differs from video: image output is free, and only input is billed. For gpt-image-2, the image output is not charged, so only the input side is billed. Image-to-image generation starts from about CNY 0.035. Notably, 4K and 1K output cost the same, so higher resolution does not raise the image charge. Images are created with POST /v1/images/generations. This structure means image cost is driven by input rather than output resolution. Current per-model image rates are published alongside video rates at relaydance.com/models.

How do I connect and start billing

You connect using an OpenAI-compatible client and your API key, with no SDK change required. According to the official relaydance.com/docs, 「Set base_url to https://relaydance.com/v1 and keep your OpenAI SDK」. Authenticate with an Authorization: Bearer YOUR_API_KEY header, using keys created at the console.

1. Create an API key at relaydance.com/console.
2. Set base_url to https://relaydance.com/v1 and add your Bearer key.
3. Submit a task with POST /v1/video/generations, including model, prompt, and seconds.
4. Poll GET /v1/video/generations/{task_id} until status is succeeded or failed, or set metadata.callback_url for webhook delivery.

Seedance price comparison table

The table below summarizes the published Seedance rates by model and resolution.

FAQ

Are failed requests charged? No. Per the official relaydance.com docs, failed or errored requests are never billed, so you pay only for successful output.

Do 4K and 1K images cost differently? No. For gpt-image-2, image output is free and only input is billed, and 4K and 1K output cost the same, with image-to-image starting from about CNY 0.035.

Do I need a BytePlus enterprise account or KYC? No. Access is direct and OpenAI-compatible, with no BytePlus enterprise account or KYC required; you set base_url to https://relaydance.com/v1 and keep your existing OpenAI SDK.