Seedance 2.0 真实计费说明：为什么不是固定按秒收费？

Seedance 2.0 真实计费说明：不是固定秒价，而是按 output tokens 扣费#

很多客户会直接问：Seedance 2.0 到底一秒多少钱？严格来说，它不是固定按秒计费，而是在任务完成后按上游返回的 output tokens 计费。秒价只能从具体任务结果反推。

核心结论#

The correct billing flow is:

submit task -> task completes -> upstream returns usage tokens -> calculate USD by tokens -> convert to Crazyrouter quota

It is not:

submit task -> charge directly by requested duration seconds

So we should not say:

1 second = fixed N tokens

Instead, after the task finishes, we can calculate:

observed tokens/sec = billedTokens / requestedDurationSeconds
observed USD/sec = actualPriceUSD / requestedDurationSeconds

This is an observed value for that task, not a universal fixed rate.

公开能力边界#

Current public capability boundary for doubao-seedance-2-0 and doubao-seedance-2-0-fast:

• 480p supported
• 720p supported
• 1080p is not currently in the public supported range

The measured examples below use 720p and 4s.

计费规则#

Seedance 2.0 billing mainly depends on whether the request contains video input.

video0 means there is no video reference input. video1 means the request includes video reference input, such as reference_video.

最终扣费公式#

After a successful task, the system first reads TotalTokens. If unavailable, it falls back to CompletionTokens.

actualPriceUSD =
  unitPriceUSDPer1MTokens
  * (billedTokens / 1_000_000)
  * quantityMultiplier
  * groupRatio
  * discount

Without extra multipliers or discounts:

actualPriceUSD = unitPriceUSDPer1MTokens * billedTokens / 1_000_000

Crazyrouter quota conversion:

actualQuota = int(actualPriceUSD * QuotaPerUnit)
QuotaPerUnit = 500000

实测案例一：文生视频#

Request profile:

• Model: doubao-seedance-2-0
• Type: text-to-video
• Input: text only, no image or video reference
• Resolution: 720p
• Duration: 4s
• Task ID: cgt-20260617212928-5s755
• completion_tokens = 87300
• total_tokens = 87300

Because there is no video reference input, the billing key is:

billing_key = doubao-seedance-2-0:video0
unitPrice = 46 / 7 = 6.571428 USD / 1M tokens

Calculation:

tokensPerSecond = 87300 / 4 = 21825 tokens/s
actualPrice = 87300 / 1000000 * 6.571428 = 0.5736 USD
pricePerSecond = 0.5736 / 4 = 0.1434 USD/s

Result: this simple 4-second 720p text-to-video task was observed at about $0.14/sec.

实测案例二：参考视频生成#

Request profile:

• Model: doubao-seedance-2-0
• Type: reference-video generation
• Input: text + previous generated video as reference_video
• Resolution: 720p
• Duration: 4s
• Task ID: cgt-20260617214300-rsnsx
• completion_tokens = 173700
• total_tokens = 173700

Because the request contains video reference input, the billing key is:

billing_key = doubao-seedance-2-0:video1
unitPrice = 28 / 7 = 4.000000 USD / 1M tokens

Calculation:

tokensPerSecond = 173700 / 4 = 43425 tokens/s
actualPrice = 173700 / 1000000 * 4.000000 = 0.6948 USD
pricePerSecond = 0.6948 / 4 = 0.1737 USD/s

Result: this 4-second 720p reference-video task was observed at about $0.17/sec.

两个案例对比#

This comparison shows why a single per-second price is misleading: video-input requests have a lower unit token price, but may return more tokens, so the final observed per-second cost can still be higher.

怎么给客户解释#

Seedance 2.0 没有统一固定的每秒价格。任务完成后，上游会返回真实 output tokens，系统按这些 tokens 计费。我们可以从已完成任务反推出本次任务平均每秒成本，但不能承诺所有任务都是同一个 tokens/秒。

If customers ask why there is no fixed second price, the reason is simple: duration is a task parameter, but the final billing unit is the actual output tokens returned after generation.

对内建议#

To give customers more stable estimates, collect more real task samples and group them by:

• text-to-video without reference input
• image-to-video
• reference-video generation
• with or without audio
• duration
• prompt complexity
• resolution

Then calculate p50, p75, and p90 tokens/sec. This is much more reliable than guessing a universal tokens/sec number.

Bottom line#

所以，对外最稳妥的说法是：Seedance 2.0 按真实 output tokens 结算；在当前 720p/4s 实测里，简单文生视频约 0.14 USD/s，参考视频生成约 0.17 USD/s。

For one API layer across video, image, chat, and other AI models, try Crazyrouter.