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.
Credits cost about 2 cents each depending on the plan.

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.
Runway Aleph 2 is an AI video model you can run directly in the Percify playground — fill in the inputs and generate right in your browser, or call it programmatically through the Percify API. Each run returns a ready-to-download video hosted on our CDN, and credits are only charged for successful results.