HappyHorse 1.0 Video Edit

HappyHorse 1.0 Video Edit is a video edit model. Rewrite an existing clip — replace the person, keep the scene. Replaces the person in a source video with your face while keeping the original motion, framing and audio. People run it for: face swap, character replacement, reels, lip-sync.

20 credits for a 5 s clip. It bills per second of output at 4 credits a second, so a shorter clip costs proportionally less. Billing stops at 15 seconds, so one run never costs more than 60 credits. Credits are the only unit we quote. One balance covers every model in the catalogue, so there is no subscription attached to HappyHorse 1.0 Video Edit specifically and no minimum spend to use it. See the pricing page for what a credit costs.

It accepts a video, an image and a text prompt. It will not start without a video and an image; everything else is optional. Up to 5 reference images per run. Resolutions: 720p, 1080p.

Every run returns one video. A single run gives you between 3 and 15 seconds. Audio carries over from the source rather than being regenerated. Speech is re-synced to the lips. Runs are queued and processed in the background, so you can close the tab — the finished file turns up in your library. We do not quote a fixed wall-clock time: it moves with the length of the run and with how busy the queue is.

The catalogue also runs Kling 4.0 v2v / Edit (15 credits for a 5 s clip), Kling O3 Pro v2v / Edit (10 credits for a 5 s clip) and Wan 2.7 Edit Video (10 credits for a 5 s clip) for the same job. HappyHorse 1.0 Video Edit is our default pick for video edit. Kling O3 Pro v2v / Edit is the cheaper way to do it, at 10 credits. They all draw on one credit balance, so trying a second one costs nothing beyond the run itself.