falVideo to videoComing soon

wan/v2.6/reference-to-video/flash

Name: wan/v2.6/reference-to-video/flash
Brand: fal

wan/v2.6/reference-to-video/flash is a video to video tool from fal that runs in the background and returns video. Coming soon: listed with its price, not yet open to runs.

This tool is listed but not yet available to run.

Price pending

Pricing

Price pending.

Limits

Runs: In the background
Returns: video
Longest queue wait: 3600s
Run deadline: 1800s
Largest inline input: 1024 KB
Largest input file: 500 MB
Largest output: 4768 MB
Outputs per run: 16

Input

Field	Kind	Default	Description
`prompt` required	text	—	Use Character1, Character2, etc. to reference subjects from your reference files. Works for people, animals, or objects. For multi-shot prompts: '[0-3s] Shot 1. [3-6s] Shot 2.' Max 1500 characters. Reference order: video_urls first, then image_urls.
`video_urls`	URLs or files	—	Reference videos for subject consistency (0-3 videos). Videos' FPS must be at least 16 FPS. Combined with image_urls, total references cannot exceed 5. Reference order: video_urls are numbered first (Character1, Character2...), then image_urls continue the sequence.
`image_urls`	URLs or files	—	Reference images for subject consistency (0-5 images). Combined with video_urls, total references cannot exceed 5. Formats: JPEG, JPG, PNG (no alpha), BMP, WEBP. Resolution: 240-5000px. Max 10MB each. Reference order: image_urls continue numbering after video_urls.
`aspect_ratio`	one of 16:9, 9:16, 1:1, 4:3, 3:4	16:9	The aspect ratio of the generated video.
`resolution`	one of 720p, 1080p	1080p	Video resolution tier. R2V Flash only supports 720p and 1080p.
`duration`	one of 5, 10	5	Duration of the generated video in seconds. R2V Flash supports only 5 or 10 seconds.
`negative_prompt`	text		Negative prompt to describe content to avoid. Max 500 characters.
`enable_prompt_expansion`	true or false	true	Whether to enable prompt rewriting using LLM.
`multi_shots`	true or false	true	When true (default), enables intelligent multi-shot segmentation for coherent narrative videos with multiple shots. When false, generates single continuous shot. Only active when enable_prompt_expansion is True.
`generate_audio`	true or false	true	Whether to generate a video with audio. Set to false for silent video generation. Silent videos are faster and cost 25% of the audio version price.
`seed`	number (whole)	—	Random seed for reproducibility. If None, a random seed is chosen.

Same request in code

curl https://api.spiral.ai/v1/runs \
  -H "Authorization: Bearer $SPIRAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
    "provider": "fal",
    "model": "wan/v2.6/reference-to-video/flash",
    "input": {
      "prompt": "Dance battle between Character1 and Character2."
    }
  }'