decart-ai / Lucy-Edit-Dev

Lucy Edit Dev is an video editing model that performs instruction-guided edits on videos using free-text prompts — it supports a variety of edits, such as clothing & accessory changes, character changes, object insertions, and scene replacements while preserving the motion and composition.

Prompting Guidelines & Supported Edits

Lucy Edit is built for precise, realistic, and identity-preserving video edits.
Prompts with ~20–30 descriptive words work best. Using the right trigger words helps the model understand your intent.

Trigger Words

• Change → Clothing or color modifications

• Add → Adding animals or objects

• Replace → Object substitution or subject swap

• Transform to → Global scene or style transformations

Supported Edit Types

1. Clothing Changes

✅ Best performance. Lucy Edit excels at swapping outfits while preserving motion, pose, and identity.
Example: “Change the shirt to a kimono with wide sleeves and patterned fabric.”

2. Human/Character Replacement

✅ Strong results. Works well for transforming people into new characters or creatures. Detailed prompts are key.
Example: “Replace the person with a tiger, striped orange fur, muscular build, and glowing green eyes.”
Example: “Replace the person with an 2D anime character, big eyes, blue gown and battle scars.”

3. Replace Objects

✅ Reliable for structure-preserving swaps. Ideal when replacing one object with another of similar scale.
Example: “Replace the apple with a glowing crystal ball emitting blue light.”