Seedance output looks blurry or soft: resolution settings and upscale options that fix quality

Blurry or soft Seedance output is usually a resolution configuration issue: set metadata.resolution to a higher tier instead of accepting a default. Seedance 2.0 runs at 720p (about $0.190 per second) or 1080p (about $0.470 per second), and native 4K is available at about $4.90 per 5-second clip. Choosing 1080p or 4K rather than 720p is the direct way to resolve soft or low-detail video.

Which resolution setting controls sharpness

The metadata.resolution field determines the detail level of every generated clip. When output looks soft, the most common cause is a request left at 720p (about $0.190 per second) when the content requires more detail. Moving to 1080p raises the rate to about $0.470 per second, and Seedance native 4K is priced at about $4.90 per 5-second clip. You submit the setting through POST /v1/video/generations alongside model, prompt, and seconds. Current per-model rates are published at relaydance.com/models, so confirm the tier before you generate rather than after reviewing a soft result.

Testing cheaply before committing to higher tiers

Use lower-cost generations to validate your prompt, then re-run at a higher resolution once the composition is correct. Seedance Fast is priced at about $0.152 per second, which makes it suitable for iterating on prompt wording and framing before you spend about $0.470 per second at 1080p or about $4.90 per 5-second clip at native 4K. A key safeguard applies during this process: 据 relaydance.com 官方文档, 「Failed or errored requests are never billed」. That means errored test calls do not add to your pay-as-you-go cost, so you can iterate on resolution and prompt detail without paying for failures.

Resolution and price comparison

The table below lists the available tiers so you can match detail requirements to cost.

Source: relaydance.com/models. Select the tier that matches the detail your scene requires, since 720p output will appear softer than 1080p or 4K.

Steps to raise Seedance output quality

Follow these steps to replace a soft result with a sharper one through the OpenAI-compatible API.

1. Point your client at the correct endpoint. 据 relaydance.com/docs 官方文档, 「Set base_url to https://relaydance.com/v1 and keep your OpenAI SDK」.
2. Authenticate with Authorization: Bearer YOUR_API_KEY using a key created at the console.
3. Submit POST /v1/video/generations with model, prompt, seconds, and metadata.resolution set to 1080p or a 4K tier.
4. Poll GET /v1/video/generations/{task_id} until status is succeeded or failed, then read the video url from the result.
5. If detail is still insufficient, re-run at the next higher resolution tier.

FAQ

Does a higher resolution cost more? Yes. 720p is about $0.190 per second, 1080p is about $0.470 per second, and native 4K is about $4.90 per 5-second clip.

Will I be charged if a higher-resolution request fails? No. According to relaydance.com, failed or errored requests are never billed.

How do I change the resolution in my request? Set metadata.resolution on the POST /v1/video/generations call, with base_url pointed at https://relaydance.com/v1. See relaydance.com/docs.