Runway Aleph 2 Video Edit is an in-context video editing model for precise prompt-based edits, multi-shot consistency, and optional keyframe guidance, supporting 2-30 second input videos and up to 5 keyframes for controlled video modification workflows.
Every plan, free included. Runs spend your account’s credits.
The smallest request that works: the required fields only.
Percify APIcurl https://api.percify.io/v3/playground/v1/run \
-H "Authorization: Bearer $PERCIFY_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"modelId": "runway-aleph-2",
"input": {
"video": "https://example.com/clip.mp4",
"prompt": "A red fox running through fresh snow at sunrise"
}
}'5 fields in input, required first.
videoRequiredInput video. Must be 2-30 seconds and less than 16 MB.
promptRequiredText prompt describing the edit to apply.
seedOptionalOptional random seed for reproducible generation.
keyframe_imagesOptionalUp to 5 optional keyframe image URLs.
keyframe_positionsOptionalPosition for each keyframe: first, last, or a timestamp in seconds.
$0.82/sFLUX 3 Video Extend continues input videos into new 5-20 second clips, using prompt guidance to control the next action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Start-End-to-Video generates 5-20 second transition videos between required start and end images, using prompt guidance to control action, camera movement, visual style, motion continuity, and optional synchronized audio at 720P / 1080P output.
$0.34/sFLUX 3 Text-to-Video generates cinematic 5-20 second videos from text prompts, with coherent motion, cinematic composition, optional synchronized audio, and 720P / 1080P output for creative videos, social content, ads, and production workflows.
$0.06/sGemini Omni 1.1 Flash Text-to-Video creates short AI videos with synchronized audio from text prompts, supporting resolutions from 360P to 4K for social content, creative storytelling, marketing videos, and production workflows.
Pick a use case, run it in the playground, copy the call.
Every plan, free included. Runs spend your account’s credits.