OpenJutsu

openjutsu

Swap characters, change objects, or replace the background in a video. Character swap accepts 1–4 images with optional matching descriptions of who to replace; one image without a description replaces the prominent person. Object change uses a target and a description or optional reference image. Background mode keeps the named target and changes its surroundings. Use a single shot; character swaps need a person visible in the first frame. Processes at most the first 15 seconds and aims to retain motion and original audio; results can be shorter. Choose 480p or 768p and an optional seed.

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Pricing

Includes our margin. Charged per request from your balance.

Per image: $0.011

Object images

Max: $1.10

Character images

Min: $1.10
Max: $4.40

Per second by resolution

480p: $0.055
768p: $0.11

Default resolution: 768p
Maximum billable duration: 15 s
Minimum billable duration: 3 s

Current public promotional tariff, verified 2026-11-01. Text-only object edits have no image fee. Output may be shorter than source. No seed surcharge.

Billing: max(3, min(15, ceil(verified source seconds))) × resolution rate + $0.01 per supplied image

Details

Provider: Open model
Added: Nov 1, 2026

Options

Parameters this model accepts.

Parameter	Values	Default
`mode`	Change target, Change surroundings; keep target Default `change`	`change`
`seed` Any negative integer selects a random seed.	Number Default `-1`	`-1`
`roles` Optional character-mode descriptions in image order. Exactly one string per supplied image, including empty strings for unspecified people.	Text	—
`images` Character mode: 1–4 ordered image URLs or data URLs. Use images or imageAttachmentIds. Existing single-image aliases remain supported.	Text	—
`role_1` Optional short description of the person in the source video. Image order starts with the primary character image, then additional images. Empty descriptions are allowed.	Text	—
`role_2` Optional short description of the person in the source video. Image order starts with the primary character image, then additional images. Empty descriptions are allowed.	Text	—
`role_3` Optional short description of the person in the source video. Image order starts with the primary character image, then additional images. Empty descriptions are allowed.	Text	—
`role_4` Optional short description of the person in the source video. Image order starts with the primary character image, then additional images. Empty descriptions are allowed.	Text	—
`target` Name what to change, or what to keep in background mode. Separate multiple items with commas.	Text	—
`imageUrl` Single-image character compatibility input, or optional object/background appearance reference. Each supplied image adds $0.01.	Text	—
`videoUrl` Required source video. The first 15 seconds are used; duration is verified before billing.	Text	—
`change_to` Describe the replacement object or surroundings. Required unless a reference image is supplied.	Text	—
`swap_type`	Character swap, Object or background Default `character`	`character`
`resolution`	480p, 768p Default `768p`	`768p`
`imageAttachmentIds` Character mode: 1–4 authorized image attachment IDs instead of images.	Text	—