# Seedance 2 Fast

> Seedance 2 fast tier — quicker generation, ~20% cheaper than Pro. Native audio bundled. Best for short social clips.

Human version: https://kymaapi.com/models/seedance-2-fast
Live JSON: `GET https://kymaapi.com/v1/models` (no auth required)

## Facts

- **Model ID**: `seedance-2-fast` — pass this as `model` in the request body
- **Creator**: ByteDance
- **Released**: 2026-04-14
- **Price**: $0.32656 / second

## Call it

```bash
curl https://kymaapi.com/v1/videos/generations \
  -H "Authorization: Bearer $KYMA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "seedance-2-fast", "prompt": "..."}'
```

## Positioning

Seedance 2 Fast is a video generation model optimized for speed and cost efficiency. Reach for it when you need to produce short social clips, UI motion prototypes, or product demos quickly without sacrificing baseline quality.

## About

Developed by ByteDance, this model generates video and native audio from text or image prompts. It operates as the fast tier of the Seedance 2 family, delivering quicker generation times at a lower cost than the Pro variant.

On Kyma, the endpoint is OpenAI-compatible and routes through automatic failover to maintain a 100% success rate across requests. You can enable prompt caching to bill repeated prefixes at 10% of the standard input rate, and every response returns exact billing in usage.cost alongside the X-Kyma-Model header. New accounts receive a $0.50 credit to start testing immediately.

It does not support vision input analysis, structured outputs, or reasoning chains. The model is billed per second of generated output and is optimized for shorter clips rather than long-form video.

## Use cases

- **Social Media Shorts** — Generate quick, engaging video clips with bundled audio for platforms like TikTok or Reels.
- **UI Motion Prototyping** — Create animated mockups and interface transitions from static design assets.
- **Rapid Product Demos** — Iterate on short promotional videos or feature walkthroughs with fast turnaround times.

## Not ideal for

Do not use this model for long-form cinematic video, complex multi-step reasoning tasks, or workflows requiring structured JSON outputs.

## Pick something else when

- You need higher visual fidelity and longer clip duration → `seedance-2-pro`
- You require advanced cinematic realism and extended generation times → `kling-3-pro`, `veo-3`
- You need fast generation with higher resolution output → `hailuo-02-1080p`

## See also

- All models: https://kymaapi.com/models.md
- Pricing: https://kymaapi.com/pricing.md
- Other models by ByteDance: https://kymaapi.com/models?q=ByteDance