Video Image to Video Kie.ai

Seedance 2.0 Fast I2V

Seedance 2.0 Fast I2V costs $0.600/clip on FairStack — a image to video model for Batch image-to-video, Cost-sensitive animation, Iteration workflows. No subscription required. Pay per generation with full REST API access. FairStack applies a transparent 20% margin on infrastructure cost so you always see the real price.

FairStack price

$0.600/clip

Try Seedance 2.0 Fast I2V API Quickstart Last updated 2026-05-13

What is Seedance 2.0 Fast I2V?

Key Features

~20% cheaper than flagship I2V ($0.10/sec)

Same input format (single first-frame image)

Same duration options (4/8/12s)

What are Seedance 2.0 Fast I2V's strengths?

Lower cost

Same I2V feature set

Good for iteration

What are Seedance 2.0 Fast I2V's limitations?

Slightly lower quality

No fal.ai fallback (early access)

What is Seedance 2.0 Fast I2V best for?

Batch image-to-video Cost-sensitive animation Iteration workflows

How much does Seedance 2.0 Fast I2V cost?

Metric

FairStack

Details

Price per generation

$0.600

Includes 20% margin

Per-second rate

$0.1000/sec

Billed per second of output

Subscription

None

Pay per generation only

How does Seedance 2.0 Fast I2V perform across capabilities?

Estimated.

motion quality

80%

visual quality

80%

prompt adherence

75%

temporal coherence

82%

character consistency

75%

camera control

72%

How do I use the Seedance 2.0 Fast I2V API?

curl

curl -X POST https://api.fairstack.ai/v1/generations/video \
  -H "Authorization: Bearer $FAIRSTACK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "seedance-2-fast-i2v",
    "prompt": "Your prompt here"
  }'

Python

import requests

response = requests.post(
    "https://api.fairstack.ai/v1/generations/video",
    headers={
        "Authorization": f"Bearer {FAIRSTACK_API_KEY}",
        "Content-Type": "application/json",
    },
    json={
        "model": "seedance-2-fast-i2v",
        "prompt": "Your prompt here",
    },
)

result = response.json()
print(result["url"])

Node.js

const response = await fetch(
  "https://api.fairstack.ai/v1/generations/video",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      model: "seedance-2-fast-i2v",
      prompt: "Your prompt here",
    }),
  }
);

const result = await response.json();
console.log(result.url);

What parameters does Seedance 2.0 Fast I2V support?

Parameter

Type

Default

Details

duration

enum

Options: 4, 8, 12

aspect_ratio

enum

16:9

Options: 16:9, 9:16, 1:1

resolution

enum

720p

Options: 720p

generate_audio

boolean (optional)

true

Frequently Asked Questions

How much does Seedance 2.0 Fast I2V cost?

Seedance 2.0 Fast I2V costs $0.600/clip on FairStack as of 2026-05-13. This price includes FairStack's transparent 20% margin on infrastructure cost. No subscription or monthly fee — you pay per generation only. Minimum deposit is $1.

What is Seedance 2.0 Fast I2V and what is it best for?

Faster, cheaper variant of Seedance 2.0 I2V. Same first-frame-to-video flow at $0.10/sec (20 credits/sec) vs the flagship's $0.125/sec. Recommended for iteration, batch I2V workflows, and cost-sensitive volume use. Seedance 2.0 Fast I2V is best for Batch image-to-video, Cost-sensitive animation, Iteration workflows. Available via FairStack's REST API with curl, Python, and Node.js SDKs.

Does Seedance 2.0 Fast I2V have an API?

Yes. Seedance 2.0 Fast I2V is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/video with your API key and prompt. Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.

How does Seedance 2.0 Fast I2V compare to other video models?

Seedance 2.0 Fast I2V excels at Batch image-to-video, Cost-sensitive animation, Iteration workflows. It is a image to video model priced at $0.600/clip on FairStack. Key strengths: Lower cost, Same I2V feature set. Compare all video models at fairstack.ai/models.